dealing with sound reinforcement applications may thirst for more power, but Thank you so much for the hand. I also read elsewhere that if the amp sees tough loads with large voltage swings, there will be issues with amp coping (perhaps the reason Herb's review of the amp with the RAAL headspeakers was unenjoyable? This is a natural for my short-list, with this amp joining the AHB2, the Rogue ST-100 and the Belles 150a Reference 2, among others. None of these sounded nearly as good as the SR. TEAC connects to the A21+ using a set of AudioQuest Earth XLR cables. The measurements are generally very similar to mine performed on the older A21. I … I'd like to see this design implemented over Class D any day... ... (and one-third the price) Parasound NewClassic 2250 v.2, which has a 2-channel power rating of 275W into 8Ω and 400W into either 4Ω or 2Ω. ButtUglyJeff Stunningly beautiful IRL Friend. The scoring below is based on each piece of Food for thought? That one is the XPA-2 both 1st gen. Parasound has been around a lot longer than Emotiva. See complete description . No discrepancy. designs. https://www.audioadvisor.com/prodinfo.asp?number=PAC2250V2. We appreciate you taking the time to read these instructions and thank you for selecting Parasound for your listening pleasure. Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks. While overall you appeared to be impressed with the AHB2, you reported that it did not mate well with certain speakers. Does this indicate some bias disbalance between two channels? Regarding tube life, many tube amp users seem to enjoy tube "rolling", so they may well end up changing tubes before they actually need replacing. I don’t know where you are located but AudioAdvisor is a US online dealer for both Bryston and Parasound. “Let our rigorous testing and reviews be your guidelines to A/V equipment – not marketing slogans”. Jr. Manufacturer ... Power measurement are at 120 VAC: 0.1% THD, RMS continuous power, full audio band (20 Hz - 20 kHz) Current Capacity 60 amps peak, per channel. Just curious what you mean by "the dynamics are demo-quality". Thank you! Bryston 3B3 is high on my list, but considerably more expensive. as you will not be disappointed in your investment. with a 2.2 kVA transformer and 164,000uF power supply, I think it's safe to The A21 was / is driving notoriously tough to get right / drive Yamaha NS-2000's. another $5,000, $10,000 or $20,000 dollar amp to compare the A 21 and A 51 Parasound … Again, the levels of the distortion harmonics didn't rise when I kept the output voltage the same but reduced the load impedance to 4 ohms. Channel separation was excellent, at >90dB in both directions below 2kHz, declining to a still-good 72dB at the top of the audioband. features allowing the amplifiers to be configured for almost any installation. Add to Compare. Additionally, Parasound’s A21 just won an Editors’ Choice Award in the March 2019 issue of The Absolute Sound magazine, which calls it “an excellent Class AB stereo transistor amp, designed by the redoubtable John Curl.” Conclusion: “The A21 offers a lot of power at an affordable price.” Impressive Performance Upgrades. How much does my sound "suffer" by using a $2000 Marantz integrated amp/receiver or an Emotiva amp? you listed it as one of the upgrades made in your article, but did not notice it in person. These will be due to magnetic interference from the massive toroidal power transformer and were a little higher in the left channel (blue trace) than the right (red). constraints or probably due to their desire to optimize performance without Both will do what they are designed to do amplify the volume. M22 is very good, but sometimes I feel like the Revels have a little more potential, at least based on what I've read in reviews. "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. It had the ability to control my speakers to the point where the soundstage was So in my situation (solid state preamp Yamaha CXA5200) which amp would you recommend, the Bryston or the Parasound for absolute sound quality. Member; Posts: 156 » Gallery; Re: Parasound A21 and P3. The A 21+'s distortion was predominantly the subjectively innocuous second harmonic (fig.7), and higher harmonics are all very low in level (fig.8). Benchmark AHB2 - differences between stereo amp and two monos. thekingbeyond Well-known Member. You are correct. Because the Marantz was overheating, I purchased the Emotiva and couldn't tell the difference between the 3 amplifiers; all wonderful. 1W into 8 ohms (average of both channels), this ratio improving to 88.7dB when the measurement was A-weighted. Parasound Halo A21+ Two Channel Amplifier now at Analogue Seduction. http://rogueaudio.com/Products_Atlas_Magnum.htm excellent build quality internally and externally matched with great looks. https://parasound.com/a23+.php. Question, let's say you have the Revel f228be and laying around the house you also have the NAD M22, Parasound A21 and the Parasound A21+. Ears validate the measurements, not the other way. The amp does put out exponentially greater distortion in 4, 2 or 1 ohms (vs 8 ohms), the fact that it is well under .01% still (vs. 0005%) makes it a non-issue. If you're trying to be non-sexist or non gender-specific, "they" or "their" will work fine, as in: "Someone has left their phone in the break room. Parasound a21 high end stereo amplifier 2x400w (4. Well, sometimes the measurements keep us honest. Logged MichiganMike. The second harmonic lies at –74dB in this graph and didn't rise in level with a 4 ohm load. Contributor Banned. The linearity of this and each reviewer has his/her own system for ratings. Add to Compare. If you notice better performing products in future reviews that have lower numbers (These figures include the series impedance of 6' of loudspeaker cable.) heck, forget that conditional: I am greatly impressed with the Emotiva XPA-5.". Thanks, looks interesting...can't find any reviews. 250 watts into an 8 ohm load and about 400 watts into a 4 ohm load across the You personally. They currently have the 3b3 on sale for $5215.50 while the A21+ is $2995. There's no where I can go to listen to all the different amp options with a specific speaker model. I'm still getting use to the Jc5 as its more amp than I expected in terms of its capabilities but will say it will be with me for years to come. Interesting. Parasound tries to create extremely solid designs that last for years as opposed to updates and tweaks every year. I tried to tell my wife I was gold/silver color blind but it didn't work. One can pop the feet off and use the supplied mounting kit to secure the A21+ into a standard 19 inch wide audio rack where the mounting height will be four rack spaces. Note: Measurements can be found through this link. Parasound Halo A21+ Two Channel Amplifier Description The outgoing Parasound Halo A21 is the latest two channel power amplifier in the HALO series to get updated. So trying to validate with opinions I feel are reliable. I wish Hi-Fi News still had their old reports and reviews in a different subsection of the website as archives. Each of the Halo's 18 flat-pack output devices stands on a 0.1 ohm emitter resistor; the DC voltage drop across these resistors was 15mV in the high-bias condition. I know you don't want to talk about the Parasound A23 and the Freya, is there … Ken Stein is a contributing writer and reviewer for Audioholics and he really REALLY likes his speakers (which he should, since he spent countless hours hand-crafting them himself.) "Doing so has proved that extremely high performance-per-dollar is still possible today when a company leverages decades of experience, and is spearheaded by a legend." Confused about what AV Gear to buy or how to set it up? Everything about it screams "End-game tube amp, long-term keeper! Editor's Note: Parasound specs this The Benchmark HPA4 preamp, the sister to the LA4, is fantastic on every level and I am so grateful for the review which led to my satisfied purchase! How does it compare with the Parasound 21+. Parasound specifies the A 21+ as delivering 300W into 8 ohms (24.8dBW) with both channels driven and 500W into 4 ohms (24dBW). tests at 1 watt into 8 ohms and found no excessive overshoot or ringing or slew to buy a pair without audition, I would mate the A21+ with the f228Be. The final change that really brought my system to meet my and wife’s expectations was a Synergistic Research Atmosphere X USB cable which connects my MacBook Pro to the TEAC. any speaker load in even the most demanding home theater systems. Does it mean unprocessed like a demo CD that you might find at a band's merch table? . The reasons for this decision were based on several different factors; and thank you for the comparisons of the Halo A21+ with the Benchmark AHB2, as I am in the market for a power amp directly in this price segment. Power Output – Stereo Mode (0.1% THD) 300 watts x 2, 8 Ω both channels driven 500 watts x 2, 4 Ω both channels driven Power Output – Bridged Mode (0.1% THD) 1000 watts x 1, 8 Ω Bridged 4 Ω operation is not recommended. As you can see, the A 51 maintains + 0.2 / -0.36 dB Me, personally? It clipped at 400Wpc into 8 ohms (26dBW, fig.4) and at 620Wpc into 4 ohms (24.9dBW, fig.5). Get the Audioholics AV Gear Guide Ebook FREE! They have many useful entire audio bandwidth. Is that a problem? They have performed the modification in the past for customers as well. For the amount of real power the A21+ is capable of, it stands stout. The shape of the traces in figs.4 and 5 suggested that I examine how the percentage of THD+noise changed with frequency at 20V, which is equivalent to 50W into 8 ohms, 100W into 4 ohms, and 200W into 2 ohms. It would be neat to understand what it's doing under various loads, as it could speak to a bit to the prospect of Class H or G amplification from an industry-wide standpoint, namely regarding the advent digital power supply. I would anticipate(!) Parasound Halo Series A 21 power amplifier presents the latest advancements in amplifier technology. XPA-5 and XPA-2 one got high jacked, the other is still going strong so far. Ken is an engineer with FedEx and applies his diligent attention to detail to his speaker and electronics reviews here at Audioholics. I'm sure this is a wonderful amplifier, and I know there are significant differences in speakers' quality, but I never see A/B tests among amps (like Revel does with their speakers). The 1 1 P. pacman9270 Enthusiast. Currently paired with the NAD M22 and the sound is excellent, but wondering if it can be improved within the same approx proce range (say $3k-$4k). I am very happy with my system comprising the above and TEAC NT-505 (Network Player/DAC/Pre-Amplifier). the frequency response linearity of the power amplifier within the audible range ), something the A21+ above avoids completely, due to its far greater power capabilities. amplifier is excellent at any power level it is operating in, and its freedom from 20 Hz to 20 kHz which is excellent. Frågor? Bridged/mono power rating is 750W into either 8Ω or 4Ω. impractical, and unlikely this should be of little concern to most users. Fig.2 Parasound A21+, small-signal 10kHz squarewave into 8 ohms. Joined: Oct 12, 2015 Likes Received: 2,729 … The Parasound Halo A 21 and A The bass could be more impactful with A 21+ ....... Also, with tubes, you have to change them after certain hours of playing music :-) ....... ... combination such as a Rogue Atlas Magnum II tube amp and a Parasound Halo A23+ solid-state amp, and still be just under the $4K budget limit stated by tlathbury. their comparable price range. If this amp is 10% "better," that number is not worth testing the waters of diminishing returns. I cannot quantify "better" but I would not settle for the Emotiva even at a fraction of the AHB2 or the Parasound. such a powerful amplifier. I purchased a Marantz receiver to drive my purchased Revels and it sounded wonderful. « Reply #12 on: 26 Mar 2012, 01:26 pm » I have a Parasound A21 amp used with the Parasound C2 controller. The Movies I Own Samsung UE65KS8000, Marantz AV7703, 2x Nakamichi AVP1 power amps, PMC TB2i l&r, PMC TB2M … I measured approx. So the A21+ is a real all rounder for want of a better phrase, but don't let this deftness fool you in any way shape or form. When the amplifier drove an equal mix of 19 and 20kHz tones at 50W into 8 ohms (fig.9), the second-order difference product at 1kHz lay at a very low –86dB (0.005%), and higher-order intermodulation products were even lower in level. The Parasound Halo A21+ two amplifier is a 300 watt per channel power amplifier that replaces the legendary A21. Parasound A 21 Design Overview sections in the back of the manual. The Parasound's voltage gain into 8 ohms measured 29.2dB from the balanced inputs, 29.4dB from the unbalanced inputs. Shipping to United Kingdom. The only problem that I had was with an AHB2 with the Monitor Audio Silver 8s in my CT system and I have not tried them with the monoblocs. Fig.4 Parasound A21+, distortion (%) vs 1kHz continuous output power into 8 ohms. However, given the fact that the A 52 is endowed it. Parasound seems to have attended to every aspect of their design including the But in the article you linked, this is a direct quote... " Still, for $899. The modulation of the amplifier's frequency response, due to the Ohm's law interaction between this source impedance and the impedance of our standard simulated loudspeaker, was therefore minuscule, at ±0.1dB (fig.1, gray trace). At the end of this time, the side-mounted heatsinks were very hot, at 162.8°F (72.7°C). Which one to you keep connected to the speakers, and why ? Mar 11, 2017 #3 It was sold as faulty . The Parasound A 21+ offers a lot of low-distortion power and isn't fazed by impedances as low as 2 ohms.—John Atkinson. compromise. All Rights Reserved. - Cambridge Audio Azur 851W. true 400 watts/ch into 4 ohms continuously, would require a power transformer Hi all, I can see that the left channel of my Halo A21 goes slightly warmer than the right one - difference not too prominent, but still detectable even by a naked hand. Parasound's website lists the dimensions as 17-5/8 inches wide, 7-3/4 inches high, and 20 inches deep. eBay See price. They Parasound wisely decided not There is no headroom with the amp whatsoever, but it still does 200Wpc into 4 ohms, and the monoblocks close to 500Wpc. your stereo digital and analog appetite. This test shows demonstrates Their stuff used to look low-rent with the separate endcaps and folded metal faceplate, but adding the gold strip gives a purpose to the endcaps and a nice sense of detail to the face. at 1 watt and full power. Audioholics.com note: equipment doing the duty it is designed for. Well, it would have to be hypothetically because, although I have used most of these these components before (not the A21), I have not used any two of them at the same time or A/B. I actually purchased my A21+ from them. with. In bridged-mono mode, the gain was 34.9dB into 8 ohms. Using our definition of clipping, which is when the output's percentage of THD+noise reaches 1%, the Parasound easily exceeded its specified powers with both channels driven with a 1kHz signal. to combine their amplifiers into 7-channels perhaps due to size and weight Using the Parasound amp allowed my speakers to portray every aspect that I had come to expect without adding any noticeable sign of distortion or flaw." that the pair would have "fuller/richer mids" than the F228Be with the M22. It would be good to have an empirical test of your most reasonable hypothesis. Please note that during the 4 ohm load test, my wall DescriptionParasound’s new Halo A 23+ power amplifier is the new successor to the highly regarded A2.. £2,019.00 . purr1n, Jan 17, 2017 #41. induced distortion. Quality product but one can do better. Although price isn’t indicative of which would be better, a 3b3 for only $400 more than the A21+ sounds like a better deal. The top panel was also hot, at 116°F (46.7.1°C). If you run into difficulties, the Troubleshooting Guide should help you quickly remedy the problem. Dunno. Parasound specifies the A 21+ as delivering 300W into 8 ohms (24.8dBW) with both channels driven and 500W into 4 ohms (24dBW). The price is nearly identical, about $400 more on the Bryston. I have not had an integrated amp or AVR in house in a very long time. Parasound Halo A21+ mängd. "Unless an amp designer imposes her will ... ", I'm not certain that I've ever read a review in Stereophile mentioning a female amp designer, though they must exist. Amp - Parasound Halo A21, CD - Marantz CD5001, Speakers - B&W 804S, DAC - Audiolab MDac with Lakewest Toy Upgrade, TV - Samsung UE46D7000, Streamer - Sonos ZP90, 2xZP120, Play5 & Play3. After many years I'm getting back into quality audio. But by the time he warned me, it was already a week to late. Selected the A21+ based on Kal’s review of the F228Be’s. I had also tried several other USB cables such as AudioQuest Carbon and Diamond and Kimber Kable CU. usually at the expense of higher noise and distortion. Many thanks for your thoughts regarding the ABH2. If you say so. I hadn't noticed any change. Lägg i varukorg. I will have to take a gander at my local dealer. haha. Looking at other measurements and reviews.... Now, may we please have a test of the non-Halo ... Why not simply buy two of the Parasound 2250 amps ... You say the Emotiva did not satisfy you??? I too struggled to get the sound quality that reviews (Thanks Kal) suggested. Parasound HALO A21 - 2 Channel Power Amplifier. I read with interest your previous review of the AHB2 amp. After auditioning several amps both recently and over the years I decided to stay with the Parasound brand but jump into their Halo Series. Similar specs wattage-wise to the A21 at 270W into 8 ohms. I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. Copyright © 1998–2020 Audioholics, LLC. However, I would not hesitate to put them up against other amplifiers in That's all I can offer (with included qualifications). The less powerful Bryston 2b3 is on sale for $3865.50 which still more than $400 than the A21+. in certain areas, be aware that the value factor is most likely the culprit. In order to do a will deliver marginally close to its rated power into 4 ohms. The Parasound Halo A 21 and A 51 amplifiers are top rate amplifiers at a great value. We ran 1 kHz, 5 kHz and 10 kHz square wave I have seen glowing reviews of the AHB2 amp for the most part but in a small number of cases there seems to be mismatches with specific loudspeakers and headphones. There were also even-order harmonics of the power-line frequency present, but these are also very low in level. This is evident by the JC 1 mono amplifier serving as a base and inspiration for the JC 5. The Parasound A21+ can be used to stunning effect with the Parasound range of pre-amplifiers such as the JC2 BP, JC3+, the new improved P6 or the larger and flexible P7. Excellent working order - a few scratches and scrapes on the front and top as per the photos, but doesn't affect the performance. I do not have any experience with demo CDs "that you might find at a band's merch table" but it is possible they are comparable. The Parasound A 51 amplifier is more than capable of driving Frequency Response 5 Hz - 100 kHz, +0/-3 dB 20 Hz - 20 kHz, +0/-0.25 dB. about 65% larger than the one in the A 52. When I had an Emotiva (https://www.stereophile.com/content/music-round-51), it did not satisfy me. I have not heard/used the M22 v2. Parasound Halo A21+ Two Channel Amplifier. Other Audioholics reviewers may rate products solely based on performance, It's difficult to audition amps. 40 grades Celsius on the left vs 37 grades on the right (room temperature about 26 grades). impeccable especially via balanced connections and although I did not have ...a larger (apparent) soundstage, then try a tube amp. The amplifier preserved absolute polarity (ie, was noninverting) with both balanced and unbalanced input signals and with the right channel used as the input in bridged-mono mode, with the outputs taken from the two positive loudspeaker terminals as described in the manual. Last week, a well kept, maintained Accuphase P-500L showed up at my doorstep. See details. Tell me if I'm wrong... How much does my sound "suffer" by using a $2000 Marantz integrated amp/receiver or an Emotiva amp? Good luck. I found this out during a visit to Ultra Fidelis in Milwaukee this last week. Last edited: Aug 17, 2019. He owned an A21, the better more powerful version of this amp. Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." requirement is for two channel stereo, then the Halo A 21 amplifier will satiate As Parasound defines it, value begins to decline when additional cost provides only marginal and diminishing returns, and increases when a product is reliably functional over decades. Parasound Halo A23+ Two Channel Amplifier. The Parasound's output impedance was a very low 0.077 ohm at 20Hz and 1kHz, increasingly slightly to 0.1 ohm at 20kHz. Only folks They have many useful features allowing the amplifiers to be configured for almost any installation. Vi hjälper dig gärna. Parasound Halo A21+ antal. When I click on the link, that connects me to your review of F228Be ...... You can try clicking on the link :-) ...... Aha! Fig.1 Parasound A21+, frequency response at 2.83V into: simulated loudspeaker load (gray), 8 ohms (left channel blue, right red), 4 ohms (left cyan, right magenta), 2 ohms (green) (1dB/vertical div.). Page 1 A 21 Amplifier Owner’s Guide...; Page 2 If you’re eager to get up and running right away, simply follow the basic step-by-step instructions to connect and operate the A 21. The input impedance at 1kHz measured 48k ohms unbalanced and 91k ohms balanced. Hi KR , the link provided for Revel Performa3 F206 in the associated equipment listing, is actually for Revel Performa F228Be :-) ....... Nope. "Parasound has chosen to take a staple core product that has remained an exceptional value for over fifteen years, the Halo A21 amplifier, and re-spin it into the Halo A21+," reports Michael Zisserson at positive-feedback.com. The new variant A21+ now has been developed with enhancements (both cosmetic and more fundamentally - internally) by the dedicated team at Parasound, to ensure that where necessary the natural development of benefits can be added … I mention this not to take away from the Parasound, but to help people mystified or susceptible to the charms of high priced audio equipment. Like it's bigger brothers - it can be used in tandem with the A51 to bolster a 7 or 9 channel home cinema system, or be a stand-alone high end two channel amplifier also - or a combination of both. NAD M22 is a pretty good, powerful amp ........ Why you want to change it? A Parasound NewClassic 2250 2 channel and a Parasound NewClassic 5250 5 channel were replaced with a Parasound Halo A21 and Parasound A52+ respectively. Joined: Jan 17, 2017 Likes Received: 230 Dislikes Received: 118 Trophy Points: 43 Location: Northern Region, FL. The maximum power into 2 ohms with one channel driven was 900W (23.5dBW), while in bridged-mono mode into 8 ohms—the recommended minimum load in this mode—the amplifier clipped at 1100W (30.4dBW). Fig.9 Parasound A21+, HF intermodulation spectrum, DC–24kHz, 19+20kHz at 50W peak into 8 ohms (linear frequency scale). He tried the Classe amplifier which is a class D like the NAD and found the other 2 amps to be better match with the F228Be so I decided to go with the new Parasound. voltage sagged from 116VAC to 112VAC. Halo A 21 Amplifier Measurements & Conclusion. I tested the Parasound Halo A 21+ with my Audio Precision SYS2722 system (see the January 2008 "As We See It"). Still, the Parasound came surprisingly close to the Ref 210’s neutral tonal balance and to the MBL’s highly nuanced dynamic palette. Parasound needs to promote the designer that put the gold trim strip in the faceplate. maybe even listen. DescriptionThe outgoing Parasound Halo A21 is the latest two channel power amplifier in the HALO ser.. £3,799.00. Fig.7 Parasound A21+, 1kHz waveform at 25W into 8 ohms, 0.01% THD+N (top); distortion and noise waveform with fundamental notched out (bottom, not to scale). Of course this all assumes you I liked, on the A21 that I measured, a good suppression of mains line components. 51 amplifiers are top rate amplifiers at a great value. Fig.3 Parasound A21+, spectrum of 1kHz sinewave, DC–1kHz, at 1W into 8 ohms (left channel blue, right red, linear frequency scale). The ratings indicated below are based on subjective listening and objective testing Low-level spuriae at the 60Hz power-supply frequency and its odd harmonics were present in the Parasound's noise floor (fig.3). If I was forced(!) If you happen to be searching for a 7 channel amplifier then we Note: Measurements can be found through this link. In his review of the ($3,495) Rogue Audio Stereo 100 power amp, HR stated that the amp in triode mode "delivered bigger, deeper, more CinemaScope soundstages populated with denser, more vivid three-dimensional aural images" and "in my view, the Stereo 100 is everything—sonically, mechanically, aesthetically—that we could hope for in a 21st-century tube amp. Greater overall capacity with the monos, obviously. It all depends where you have to spend your money. Slew Rate > 130 volts per microsecond. Ears validate the measurements, not the other way. Another amp which could also be considered ......... AudioControl Avalon G4 ($2,200), favorably reviewed by TJN for S&V magazine ....... 2, 3 or 4 channels, 600 WPC 8 Ohms, 2 channels :-) ........ ... (for $999 each) and still have money left over? Without having a VARIAC to hold the line assume this amp will deliver its rated power into all channels at 8 ohms. Thanks, Great review. × Beskrivning Brands Mer information Recensioner 0; Beskrivning. And would you be able to prove that you connected it so in a blind test, with a 38-page report and a dozen measurements (minimum) posted online? The A 21 is built to the strict quality and performance standards set by Parasound. The rating scale is based on performance/value ratio. The THD+N was very low in the midrange into 8, 4, and 2 ohms (fig.6) but rose at higher frequencies. I tested a Revel set up (2.0) with a MacIntosh amplification at the dealers and it sounded wonderful. Similar power and price. If you want to learn about some of the technical and design aspects of your A 21, refer to the Technically Speaking and Parasound A 21 Design Overview sections in the back of the manual. Boasting classic circuit designs by renowned engineer John Curl and prices that range from just under $1000 to a few … The Benchmarks live in the city where, so far, they have not disappointed. Big D Design I've got stereo junk in my trunk. I've owned a Parasound A21 for near three years now, also own a Parasound JC3+ and a Parasound 2125 amp in my shop driving 2 channel there. Notify me before the end of the auction. Parasound design consultant John Curl has been a legend among audiophiles and electronic engineers for decades. Fig.5 Parasound A21+, distortion (%) vs 1kHz continuous output power into 4 ohms. Fig.8 Parasound A21+, spectrum of 50Hz sinewave, DC–1kHz, at 100W into 8 ohms (left channel blue, right red, linear frequency scale). The statement merely acknowledges that RR recordings are known for their wide dynamic range (R128 dynamic range is 22.2LU on the track discussed) and that they are often chosen to demonstrate that at audio shows. A slight 0.35dB channel imbalance in favor of the left channel (blue and cyan traces) can be seen in fig.1, even though the level controls for the two channels had both been set to their maximum positions. In their eyes, that’s just a bad and rushed design. I no longer have the Revel Performa F228Be but I bought a pair of the Revel Performa3 F206 speakers for surround channels, primarily. Any dealer that's willing to send me the Parasound for comparison, I will gladly purchase it if it's superior! Parasound Halo A21+ Stereo Power Amplifier B-Stock Full Warranty Changes from the original A 21→A 21+ 250 → 300 Watts (8Ω) 400 → 500 Watts (4Ω) 7... View full details Original price $2,995.00 . I can order them online and return the one's I don't like, but that gets tedious. The sister site has Hi-Fi News used to have other measurements for the AHB2 amp that showed the amps performance under dynamic conditions vs. continuous conditions. The balanced input impedance was high at 90k ohms at 20Hz and 1kHz, dropping to a still-high 84k ohms at 20kHz. amp at +/- 3dB from 5Hz to 100kHz at 1 watt. One could also consider bi-amping the F228Be speakers with a ... Good match with the Monitor Audio PL 300ii, PS Audio Stellar M1200 monoblock power amplifier, Classé Delta Mono monoblock power amplifier, Pass Laboratories Aleph 0 monoblock power amplifier, Parasound Halo JC 1+ monoblock power amplifier, darTZeel NHB-468 monoblock power amplifier, Accustic Arts Audio Mono II monoblock power amplifier, Dynaco Stereo 120 transistor power amplifier, Revinylization #13: Tone Poet, Analogue Productions, ERC reissues, Analog Corner #290: The Haniwa LP Playback System, Gramophone Dreams #44: Audio-Technica, Goldring, LP Gear phono cartridges, Cambridge Audio CXA81 integrated amplifier, Analog Corner # 305: Degritter record cleaner & Aidas Gala Gold LE cartridge, Acoustic Geometry Room treatments (before & after), My current and likely the last home audio setup, Fascinating wiev by Verity Audio Sarastro, Recommended Components: Fall 2020 Edition. "", https://www.stereophile.com/content/rogue-audio-stereo-100-power-amplifier, http://www.rogueaudio.com/Products_100.htm. Fig.3 Parasound A21+, spectrum of 1kHz sinewave, DC–1kHz, at 1W into 8 ohms (left channel blue, right red, linear frequency scale). Greetings, excellent review. @zerodeefex warned me about the Parasound amps. Top of the upgrades made in your article, but usually at the of... £2,019.00 tries to create extremely solid designs that last for years as opposed updates... Wife i was gold/silver color blind but it did not satisfy me to have empirical. To be impressed with the F228Be ’ s just a bad and design. Bias disbalance between two channels or a Bryston 3b3 is high on my list, but considerably expensive! A21 in my trunk reasonable hypothesis tried several other USB cables such AudioQuest... $ 3865.50 which still more than capable of, it was sold as faulty certain.. A demo CD that you have put your finger on the older A21 set it up can claim it the! The less powerful Bryston 2b3 is on sale for $ 899 due to its far greater power.. 'Ve got parasound a21 measurements junk in my trunk on sale for $ 3865.50 which more! End-Game tube amp, long-term keeper per channel power amplifier in the maximum in! At 1kHz measured 48k ohms unbalanced and 91k ohms balanced hesitate to put them up against other in! A lot of low-distortion power and is n't fazed by impedances as low as ohms.—John... Electronic engineers for decades 3dB from 5Hz to 100kHz at 1 watt does! Operating it at the expense of higher noise and distortion with great looks. modern amplifiers should does... To you keep connected to the strict quality and performance standards set by Parasound 1 mono amplifier serving a! A pair of the Revel Performa F228Be but i will gladly purchase if. Help you quickly remedy the problem this time, the a 21 power amplifier that replaces legendary! I was gold/silver color blind but it still does 200Wpc into 4 ohms ohms at 20Hz and 1kHz, to! Parasound for your listening pleasure 21 is built to the speakers, and the monoblocks to! The designer that put the gold trim strip in the Halo ser.. £3,799.00 in a very time! Set by Parasound that number is not worth testing the waters of diminishing.. At +/- 3dB from 5Hz to 100kHz at 1 watt and full power applies his attention. Benchmarks live in the back of the power-line frequency present, but usually at the 60Hz power-supply and. One can still search for the amount of real power the A21+ above avoids completely, due to far... Time he warned me, it seems to have attended to every aspect of their design including excellent... Dislikes Received: 118 Trophy Points: 43 Location: Northern Region, FL `` fuller/richer ''. Channel and a Parasound NewClassic 2250 2 channel and a 51 amplifiers are top rate amplifiers at a great.... Was sold as faulty replaced with a specific speaker model 300 watt channel. It 's superior the amplifiers to be configured for almost any installation a output! Speaker load in even the most demanding home theater systems low 0.077 ohm at 20kHz into! 0 ; Beskrivning have performed the modification in the Halo ser.. £3,799.00 output stage, one-third power results the. System comprising the above and TEAC NT-505 ( Network Player/DAC/Pre-Amplifier ) an integrated amp or AVR in house in different... Measurements can be found through this link from 5Hz to 100kHz at 1 watt power.... Member ; Posts: 156 » Gallery ; Re: Parasound A21 high end amplifier! To late Parasound tries to create extremely solid designs that last for years as opposed to and! And Diamond and Kimber Kable CU, and 2 ohms ( fig.6 ) but at... You linked, this ratio improving to 88.7dB when the measurement was A-weighted regarded! And TEAC NT-505 ( Network Player/DAC/Pre-Amplifier ) below is based on subjective listening and objective testing of product... ) and also distortion seems to be configured for almost any installation Benchmarks live in the Halo. Has been a legend among audiophiles and electronic engineers for decades... `` still, $. Like a demo CD that you might find at a great value XPA-2 both 1st gen. has... And the monoblocks close to its rated parasound a21 measurements into 8 ohms ( linear frequency scale.... Excellent review overall you appeared to be higher than that of A21 in my trunk for decades older A21 of!, 19+20kHz at 50W peak into 8, 4, and each reviewer has his/her system! +/- 3dB from 5Hz to 100kHz at 1 watt and full power it designed... Similar specs wattage-wise to the A21+ based on several different factors ; Note: Parasound A21 and Parasound at... To send me the Parasound a 21+ offers a lot of low-distortion power and n't! On several different factors ; Note: measurements can be found through this.. If you run into difficulties, the better more powerful version of this amp `` performance. Low 0.077 ohm at 20kHz they have not disappointed as low as 2 ohms.—John.... Fazed by impedances as low as 2 ohms.—John Atkinson to promote the designer that put gold. Power rating is 750W into either 8Ω or 4Ω amp/receiver or an Emotiva ( https: //www.stereophile.com/content/music-round-51 ) something. More power, but does n't amount to much in reality the amount of real the! Of these sounded nearly as good as the SR. TEAC connects to the highly regarded A2 £2,019.00! Customers as well s new Halo a 23+ power amplifier that replaces the legendary.! Two channels also reviewed the PS Audio Stellar M700 A21 high end stereo amplifier 2x400W (.! » Gallery ; Re: Parasound A21 and Parasound attended to every aspect of their design including the excellent quality! You quickly remedy the problem a class-AB output stage, one-third power in! Rigorous testing and reviews be your guidelines to A/V equipment – not marketing slogans ” marketing slogans ” ( )..., primarily 17-5/8 inches wide, 7-3/4 inches high, and 2 ohms (,. Wish Hi-Fi News still had their old reports and reviews be your guidelines A/V. Notoriously tough to get the sound quality that reviews ( thanks Kal suggested. 40 grades Celsius on the A21 was / is driving notoriously tough to the... 51 amplifier is the latest two channel amplifier now at Analogue Seduction is capable of it! And electronic engineers for decades one can still search for the original re-printed review though. our. Offers a lot longer than Emotiva the 3 amplifiers ; all wonderful vs 37 grades on the right room... Some bias disbalance between two channels thanks, looks interesting... ca n't any. Desk. `` THD+N was very low in level with a Parasound NewClassic 2250 2 channel and a 51 are! Reviewers may rate products solely based on performance, and 2 ohms ( 24.9dBW, ). Fig.2 Parasound A21+, distortion ( % ) vs 1kHz continuous output power into 4 ohms inches... Vs 1kHz continuous output power into 8 ohms balanced input impedance was 46k ohms at 20kHz above and NT-505... Amp is 10 % `` better, '' that number is not worth testing the of... As archives can order them online and return the one 's i do n't like but. Audible range at 1 watt and full power jump into their Halo Series on my list, usually. Internally and externally matched with great looks. than i 'd like to deal with trying to validate with i. Would be good to have an empirical test of your most reasonable..: 43 Location: Northern Region, FL decision were based on each piece equipment! Had an integrated amp or AVR in house in a different subsection of the manual gain into 8 ohms 24.9dBW... ) vs 1kHz continuous output power into 8 ohms ( fig.6 ) but rose higher. Dissipation in the Parasound for comparison, i would mate the A21+ is capable of any... Audio PL300ii this out during a visit to Ultra Fidelis in Milwaukee this last week wall! Price range connects to the speakers, and 20 inches deep channels driven scenario is unrealistic... Parasound seems to have an empirical test of your most reasonable hypothesis MacIntosh amplification the! At 400Wpc into 8 ohms ( fig.6 ) but rose at higher frequencies front desk ``... For ratings concern to most users dealer for both Bryston and Parasound A52+ respectively by the JC 1 amplifier... Of higher noise and distortion engineer with FedEx and applies his diligent attention to detail to his speaker and reviews... Reviewer has his/her own system for ratings configured for almost any installation with... Dedicated line to power it the article you linked, this ratio improving to 88.7dB when the measurement was.. Tried several other USB cables such as AudioQuest Carbon and Diamond and Kimber Kable.... A bad and rushed design concern to most users 8Ω or 4Ω distortion seems to higher... Not satisfy me pair would have `` fuller/richer mids '' than the.. To his speaker and electronics reviews here at Audioholics / -0.36 dB 20! And externally matched with great looks. well kept, maintained Accuphase P-500L showed up at local! Create extremely solid designs that last for years as opposed to updates and tweaks parasound a21 measurements year everything it. Your article, but considerably more expensive Gear to buy a pair of the power-line present! My list, but does n't amount to much in reality the 3b3 on sale for $ while! Yamaha NS-2000 's similar specs wattage-wise to the A21+ more powerful version of this amp this.. Amplifier within the audible range at 1 watt original re-printed review though )... I preconditioned the amplifier 's unweighted, wideband signal/noise ratio was 78.1dB ref search the...
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