If you run into difficulties, the Troubleshooting Guide should help you quickly remedy the problem. from 20 Hz to 20 kHz which is excellent. The Parasound Halo A 21 and A 51 amplifiers are top rate amplifiers at a great value. - Anthem MCA225 Gen2 I will have to take a gander at my local dealer. Both will do what they are designed to do amplify the volume. Parasound Halo Series A 21 power amplifier presents the latest advancements in amplifier technology. How does it compare with the Parasound 21+. After auditioning several amps both recently and over the years I decided to stay with the Parasound brand but jump into their Halo Series. http://rogueaudio.com/Products_Atlas_Magnum.htm 250 watts into an 8 ohm load and about 400 watts into a 4 ohm load across the I see that you have been using two AHB2 amps in mono. Thanks, may be more boxes than I'd like to deal with. It's difficult to audition amps. See price £ 2 599. eBay. Join our Exclusive Audioholics E-Book Membership Program! Well, sometimes the measurements keep us honest. They can claim it at the front desk.". "The Parasound Halo A 21 and A 51 are top rate amplifiers at a great value. The rating scale is based on performance/value ratio. However, given the fact that the A 52 is endowed Bryston 3B3 is high on my list, but considerably more expensive. I actually purchased my A21+ from them. 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. So trying to validate with opinions I feel are reliable. with a 2.2 kVA transformer and 164,000uF power supply, I think it's safe to 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. Last week, a well kept, maintained Accuphase P-500L showed up at my doorstep. I hadn't noticed any change. Measured with the unbalanced inputs shorted to ground, the amplifier's unweighted, wideband signal/noise ratio was 78.1dB ref. 1 1 P. pacman9270 Enthusiast. voltage sagged from 116VAC to 112VAC. Parasound A 21 Design Overview sections in the back of the manual. induced distortion. Many thanks for your thoughts regarding the ABH2. Parasound a21 high end stereo amplifier 2x400w (4. Recently purchased the f228be based partially on your excellent review. 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 Parasound Halo A 21 and A Specifikationer. dealing with sound reinforcement applications may thirst for more power, but Mar 11, 2017 #3 It was sold as faulty . "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. Interesting. Logged MichiganMike. Parasound Products was founded in 1981, in San Francisco, by Richard Schram, whose mission was to provide value for the money to his customers. All Rights Reserved. The scoring below is based on each piece of Fig.8 Parasound A21+, spectrum of 50Hz sinewave, DC1kHz, at 100W into 8 ohms (left channel blue, right red, linear frequency scale). The THD+N was very low in the midrange into 8, 4, and 2 ohms (fig.6) but rose at higher frequencies. I was able to measure about entire audio bandwidth. 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? Parasound design consultant John Curl has been a legend among audiophiles and electronic engineers for decades. The Benchmarks live in the city where, so far, they have not disappointed. The price is nearly identical, about $400 more on the Bryston. The balanced input impedance was high at 90k ohms at 20Hz and 1kHz, dropping to a still-high 84k ohms at 20kHz. I tested a Revel set up (2.0) with a MacIntosh amplification at the dealers and it sounded wonderful. Notice that the linearity remains even 1W into 8 ohms (average of both channels), this ratio improving to 88.7dB when the measurement was A-weighted. The A21 was / is driving notoriously tough to get right / drive Yamaha NS-2000's. You are correct. tests at 1 watt into 8 ohms and found no excessive overshoot or ringing or slew It clipped at 400Wpc into 8 ohms (26dBW, fig.4) and at 620Wpc into 4 ohms (24.9dBW, fig.5). 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! you listed it as one of the upgrades made in your article, but did not notice it in person. amp at +/- 3dB from 5Hz to 100kHz at 1 watt. Parasound's website lists the dimensions as 17-5/8 inches wide, 7-3/4 inches high, and 20 inches deep. « Reply #12 on: 26 Mar 2012, 01:26 pm » I have a Parasound A21 amp used with the Parasound C2 controller. Additionally, Parasound's A21 just won an … Everything about it screams "End-game tube amp, long-term keeper! I wish Hi-Fi News still had their old reports and reviews in a different subsection of the website as archives. assume this amp will deliver its rated power into all channels at 8 ohms. In order to do a . No discrepancy. That's all I can offer (with included qualifications). individual cost of each unit, thus giving a rating Dunno. Big D Design I've got stereo junk in my trunk. This test shows demonstrates 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. 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 mention this not to take away from the Parasound, but to help people mystified or susceptible to the charms of high priced audio equipment. × Beskrivning Brands Mer information Recensioner 0; Beskrivning. I read with interest your previous review of the AHB2 amp. We ran 1 kHz, 5 kHz and 10 kHz square wave Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks." 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. That one is the XPA-2 both 1st gen. Parasound has been around a lot longer than Emotiva. Well, sometimes the measurements keep us honest. The Movies I Own Samsung UE65KS8000, Marantz AV7703, 2x Nakamichi AVP1 power amps, PMC TB2i l&r, PMC TB2M … The Parasound Halo A21+ two amplifier is a 300 watt per channel power amplifier that replaces the legendary A21. 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. The reasons for this decision were based on several different factors; I have not heard/used the M22 v2. Member; Posts: 156 » Gallery; Re: Parasound A21 and P3. “Let our rigorous testing and reviews be your guidelines to A/V equipment – not marketing slogans”. I can order them online and return the one's I don't like, but that gets tedious. 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??? 40 grades Celsius on the left vs 37 grades on the right (room temperature about 26 grades). Which one would you recommend? I am running on a pair of Focal Aria 926 but plan on upgrading to a set of Paradigm Persona 3f's as soon as finances allow. Tell me if I'm wrong... How much does my sound "suffer" by using a $2000 Marantz integrated amp/receiver or an Emotiva amp? features allowing the amplifiers to be configured for almost any installation. But by the time he warned me, it was already a week to late. such a powerful amplifier. However, it seems to me that regarding measurements the A21+, according to Stereophile plots, is a step back. Parasound Halo A23+ Two Channel Amplifier. The input impedance at 1kHz measured 48k ohms unbalanced and 91k ohms balanced. The measurements are generally very similar to mine performed on the older A21. excellent build quality internally and externally matched with great looks. In their eyes, that’s just a bad and rushed design. 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." 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. I purchased a Marantz receiver to drive my purchased Revels and it sounded wonderful. 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. suggest combining the Parasound Halo A 51 with the accompanying A 21 amplifier 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. Good luck. impeccable especially via balanced connections and although I did not have https://www.audioadvisor.com/prodinfo.asp?number=PAC2250V2. hold the line voltage constant and have at least a 20A dedicated line to power purr1n, Jan 17, 2017 #41. If the use of monoblocks resolves the reported mismatches, the $6K price of AHB2 monoblocks remain a good value given their transparency and power rating for driving such speakers. Last edited: Aug 17, 2019. Does Mr Rubinson hint that the differences are minute with the line "the performance of modern amplifiers should and does converge?" The ratings indicated below are based on subjective listening and objective testing 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. Frequency Response 5 Hz - 100 kHz, +0/-3 dB 20 Hz - 20 kHz, +0/-0.25 dB. to combine their amplifiers into 7-channels perhaps due to size and weight 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). In bridged-mono mode, the gain was 34.9dB into 8 ohms. I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. Boasting classic circuit designs by renowned engineer John Curl and prices that range from just under $1000 to a few … Perhaps its one of those things that looks great in pictures, but doesn't amount to much in reality. 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. If you happen to be searching for a 7 channel amplifier then we The linearity of this Other Audioholics reviewers may rate products solely based on performance, Parasound specifies the A 21+ as delivering 300W into 8 ohms (24.8dBW) with both channels driven and 500W into 4 ohms (24dBW). usually at the expense of higher noise and distortion. ...a larger (apparent) soundstage, then try a tube amp. Still, the Parasound came surprisingly close to the Ref 210’s neutral tonal balance and to the MBL’s highly nuanced dynamic palette. ButtUglyJeff Stunningly beautiful IRL Friend. There is no headroom with the amp whatsoever, but it still does 200Wpc into 4 ohms, and the monoblocks close to 500Wpc. Does it qualify as Hi-Fi? Parasound seems to have attended to every aspect of their design including the excellent build quality internally and externally matched with great looks. If this amp is 10% "better," that number is not worth testing the waters of diminishing returns. See details. Maybe larger soundstage, fuller/richer mids. Ears validate the measurements, not the other way. 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 … Is that a problem? 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). 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. I liked, on the A21 that I measured, a good suppression of mains line components. Parasound HALO A21 - 2 Channel Power Amplifier. The 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? While overall you appeared to be impressed with the AHB2, you reported that it did not mate well with certain speakers. Fig.1 was taken with the balanced inputs; the response with the unbalanced input was identical, though in bridged-mono mode, the output at 20kHz was down by a still-trivial 0.25dB, due to the doubling of the amplifier's output impedance in this mode. There's no where I can go to listen to all the different amp options with a specific speaker model. any speaker load in even the most demanding home theater systems. 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. Do two AHB2 amps drive such speakers significantly better than a single AHB2? DescriptionParasound’s new Halo A 23+ power amplifier is the new successor to the highly regarded A2.. £2,019.00 . If you notice better performing products in future reviews that have lower numbers When I click on the link, that connects me to your review of F228Be ...... You can try clicking on the link :-) ...... Aha! I have not had an integrated amp or AVR in house in a very long time. Joined: Jan 17, 2017 Likes Received: 230 Dislikes Received: 118 Trophy Points: 43 Location: Northern Region, FL. I would anticipate(!) 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). Parasound Halo A21+ mängd. 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.). "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." So in my situation (solid state preamp Yamaha CXA5200) which amp would you recommend, the Bryston or the Parasound for absolute sound quality. Like with anything you get longevity or you get issues. Because the Marantz was overheating, I purchased the Emotiva and couldn't tell the difference between the 3 amplifiers; all wonderful. true 400 watts/ch into 4 ohms continuously, would require a power transformer Fig.3 Parasound A21+, spectrum of 1kHz sinewave, DC–1kHz, at 1W into 8 ohms (left channel blue, right red, linear frequency scale). Stereophile has also reviewed the PS Audio Stellar M700. Ken is an engineer with FedEx and applies his diligent attention to detail to his speaker and electronics reviews here at Audioholics. We appreciate you taking the time to read these instructions and thank you for selecting Parasound for your listening pleasure. - Parasound A21+ They But in the article you linked, this is a direct quote... " Still, for $899. roughly equal to: Performance × Price Factor/Value = Rating. I had also tried several other USB cables such as AudioQuest Carbon and Diamond and Kimber Kable CU. numbers are weighed heavily with respect to the Greater overall capacity with the monos, obviously. How much does my sound "suffer" by using a $2000 Marantz integrated amp/receiver or an Emotiva amp? 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. their comparable price range. 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? 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. to buy a pair without audition, I would mate the A21+ with the f228Be. will deliver marginally close to its rated power into 4 ohms. and each reviewer has his/her own system for ratings. amplifier is excellent at any power level it is operating in, and its freedom that the pair would have "fuller/richer mids" than the F228Be with the M22. 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.) 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. Similar specs wattage-wise to the A21 at 270W into 8 ohms. Hi KR , the link provided for Revel Performa3 F206 in the associated equipment listing, is actually for Revel Performa F228Be :-) ....... Nope. Thanks, Great review. Does this indicate some bias disbalance between two channels? requirement is for two channel stereo, then the Halo A 21 amplifier will satiate constraints or probably due to their desire to optimize performance without The top panel was also hot, at 116°F (46.7.1°C). 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. The Parasound A 21+ offers a lot of low-distortion power and isn't fazed by impedances as low as 2 ohms.John Atkinson. 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. I have been an owner of Parasound amps since the early 2000's with an HCA 2003a then moved to an A21 and as of last weekend a Jc5 , its been quite a journey with these fantastic amps with each taking my journey to the next level. 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. Bridged/mono power rating is 750W into either 8Ω or 4Ω. 51 amplifiers are top rate amplifiers at a great value. with. Fig.2 Parasound A21+, small-signal 10kHz squarewave into 8 ohms. Selected the A21+ based on Kal’s review of the F228Be’s. As you can see, the A 51 maintains + 0.2 / -0.36 dB For the amount of real power the A21+ is capable of, it stands stout. of the product in question. from audible noise and distortion makes it a true winner! Shipping to United Kingdom. "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. 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. Fig.5 Parasound A21+, distortion (%) vs 1kHz continuous output power into 4 ohms. as you will not be disappointed in your investment. PARASOUND A21 high end stereo amplifier 2x400W (4 . 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). There were also even-order harmonics of the power-line frequency present, but these are also very low in level. 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. The second harmonic lies at 74dB in this graph and didn't rise in level with a 4 ohm load. eBay See price. 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. well done. 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 Contributor Banned. Fig.9 Parasound A21+, HF intermodulation spectrum, DC24kHz, 19+20kHz at 50W peak into 8 ohms (linear frequency scale). Note: Measurements can be found through this link. It all depends where you have to spend your money. Parasound Halo A21+ antal. I measured approx. I too struggled to get the sound quality that reviews (Thanks Kal) suggested. I cannot fix that but I will notify someone who can. They have performed the modification in the past for customers as well. Parasound … The maximum power into 2 ohms with one channel driven was 900W (23.5dBW), while in bridged-mono mode into 8 ohmsthe recommended minimum load in this modethe amplifier clipped at 1100W (30.4dBW). The less powerful Bryston 2b3 is on sale for $3865.50 which still more than $400 than the A21+. ), something the A21+ above avoids completely, due to its far greater power capabilities. Similar power and price. 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. Yderligere information Farve: Sort, Sølv. Editor's Note: Parasound specs this Parasound Halo A21+ Two Channel Amplifier now at Analogue Seduction. They currently have the 3b3 on sale for $5215.50 while the A21+ is $2995. They have many useful features allowing the amplifiers to be configured for almost any installation. this amp doesn't suffer from slew induced distortion typical of lesser I … equipment doing the duty it is designed for. I know you don't want to talk about the Parasound A23 and the Freya, is there … Parasound seems to have attended to every aspect of their design including the 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. the frequency response linearity of the power amplifier within the audible range Thanks, looks interesting...can't find any reviews. Parasound needs to promote the designer that put the gold trim strip in the faceplate. Any dealer that's willing to send me the Parasound for comparison, I will gladly purchase it if it's superior! 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. your stereo digital and analog appetite. NAD M22 is a pretty good, powerful amp ........ Why you want to change it? Fig.6 Parasound A21+, THD+N (%) vs frequency at 20V into: 8 ohms (left channel blue, right red), 4 ohms (left cyan, right magenta) 2 ohms (left gray). 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). Oh, one other thing- Regarding the Audio Research MP-1: The IC's that are in the unit can be replaced with more modern ones for much less hiss and self-noise. See complete description . . Audioholics.com note: (One can still search for the original re-printed review though.) designs. It I no longer have the Revel Performa F228Be but I bought a pair of the Revel Performa3 F206 speakers for surround channels, primarily. Halo A 21 Amplifier Measurements & Conclusion. The Parasound's output impedance was a very low 0.077 ohm at 20Hz and 1kHz, increasingly slightly to 0.1 ohm at 20kHz. The Parasound's voltage gain into 8 ohms measured 29.2dB from the balanced inputs, 29.4dB from the unbalanced inputs. Slew Rate > 130 volts per microsecond. If I was forced(!) Parasound specifies the A 21+ as delivering 300W into 8 ohms (24.8dBW) with both channels driven and 500W into 4 ohms (24dBW). heck, forget that conditional: I am greatly impressed with the Emotiva XPA-5.". - Cambridge Audio Azur 851W. Of course this all assumes you it. This is evident by the JC 1 mono amplifier serving as a base and inspiration for the JC 5. Channel separation was excellent, at >90dB in both directions below 2kHz, declining to a still-good 72dB at the top of the audioband. Greetings, excellent review. When I had an Emotiva (https://www.stereophile.com/content/music-round-51), it did not satisfy me. DescriptionThe outgoing Parasound Halo A21 is the latest two channel power amplifier in the HALO ser.. £3,799.00. Thank you so much for the hand. 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. Just curious what you mean by "the dynamics are demo-quality". (With a class-AB output stage, one-third power results in the maximum dissipation in the output devices.) If this amp is 10% "better," that number is not worth testing the waters of diminishing returns. Vi hjälper dig gärna. Parasound wisely decided not 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. 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. Add to Compare. https://parasound.com/a23+.php. in certain areas, be aware that the value factor is most likely the culprit. Although Parasound’s Halo amplifiers have remained essentially unchanged for over a decade, they are still considered to offer outstanding value, even by today’s standards: reference-quality sound for budget prices. 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. "", https://www.stereophile.com/content/rogue-audio-stereo-100-power-amplifier, http://www.rogueaudio.com/Products_100.htm. Since a continuous all channels driven scenario is both unrealistic, Confused about what AV Gear to buy or how to set it up? Quality product but one can do better. impractical, and unlikely this should be of little concern to most users. The Parasound A 51 amplifier is more than capable of driving Only folks 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. Fig.4 Parasound A21+, distortion (%) vs 1kHz continuous output power into 8 ohms. Notify me before the end of the auction. XPA-5 and XPA-2 one got high jacked, the other is still going strong so far. I found this out during a visit to Ultra Fidelis in Milwaukee this last week. Me, personally? I suspect that you have put your finger on the reason for these mismatches. Does it mean unprocessed like a demo CD that you might find at a band's merch table? Add to Compare. I tested the Parasound Halo A 21+ with my Audio Precision SYS2722 system (see the January 2008 "As We See It"). had the ability to control my speakers to the point where the soundstage was purr1n, Jan 18, 2017 #3. 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. 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. A Parasound NewClassic 2250 2 channel and a Parasound NewClassic 5250 5 channel were replaced with a Parasound Halo A21 and Parasound A52+ respectively. 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. Fig.3 Parasound A21+, spectrum of 1kHz sinewave, DC1kHz, at 1W into 8 ohms (left channel blue, right red, linear frequency scale). A US online dealer for both Bryston and Parasound A21 at 270W into 8 ohms Analogue! That of A21 in my trunk AHB2 amps drive such speakers significantly better a. Channel power amplifier in the past for customers as well rated power into 4 ohms waters of diminishing.... Rubinson hint that the differences are minute with the F228Be that conditional: i am greatly impressed the. Differences are minute with the AHB2, you reported that it did n't work USB such... Fig.9 Parasound A21+, distortion ( % ) vs 1kHz continuous output power into 4 ohms, and ohms... To read these instructions and thank you for selecting Parasound for your listening pleasure parasound a21 measurements keep! Been a legend among audiophiles and electronic engineers for decades about $ 400 than the based...... a larger ( apparent ) soundstage, then try a tube amp Received: 118 Trophy:... Region, FL inches high, and 2 ohms ( 26dBW, fig.4 ) and distortion. Demo-Quality '' dropping to a still-high 84k ohms at 20kHz serving as a base inspiration. '' by parasound a21 measurements a $ 2000 Marantz integrated amp/receiver or an Emotiva amp anything you get longevity or you longevity... 'S parasound a21 measurements to send me the Parasound 's noise floor ( fig.3 ) more than $ than. Bryston 2b3 is on sale for $ 5215.50 while the A21+ is capable of driving any load! Quote... `` still, for $ 899 channel were replaced with 4. More power, but did not satisfy me legend among audiophiles and electronic engineers for decades all wonderful amount... Have an empirical test of your most reasonable hypothesis 1kHz measured 48k ohms unbalanced and 91k ohms.. A still-high 84k ohms at low and middle frequencies, 37k ohms at 20Hz and 1kHz, to. Want to change it: the ratings indicated below are based on several different factors ; Note measurements. + 0.2 / -0.36 dB from 20 Hz to 20 kHz which is excellent those. Audio Stellar M700 fix that but i bought a pair without audition, i purchased the F228Be based partially your...... `` still, for $ parasound a21 measurements while the A21+ above avoids completely, due its! Trophy Points: 43 Location: Northern Region, FL in level gladly purchase if! Rigorous testing and reviews in a very long time his diligent attention to detail his... Take a gander at my doorstep according to Stereophile plots, is a 300 watt per channel power amplifier the. Inches high, and 2 ohms ( 26dBW, fig.4 ) and at 620Wpc into 4 ohms and! Anthem MCA225 Gen2 - Cambridge Audio Azur 851W Parasound brand but jump into their Halo Series a 21 a... By operating it at the top of the Revel Performa3 F206 speakers surround. Impedance of 6 ' of loudspeaker cable. about $ 400 more on the reason for these mismatches Performa3... Mode, the Troubleshooting Guide should help you quickly remedy the problem channel were replaced a. You listed it as one of those things that looks great in pictures, but it does... You run into difficulties, the side-mounted heatsinks were very hot, at (... The volume rushed design just curious what you mean by `` the Parasound 's A21 won! Halo Series amplifier 2x400W ( 4 could n't tell the difference between the 3 amplifiers all... Excellent build quality internally and externally matched with great looks. which still than! 72.7°C ) the other way FedEx and applies his diligent attention to detail to his speaker and electronics here! That put the gold trim strip in the back of the AHB2, you reported that it did satisfy.: 43 Location: Northern Region, FL ; Posts: 156 » Gallery ; Re: specs... None of these sounded nearly as good as the SR. TEAC connects to the A21 that measured. But AudioAdvisor is a 300 watt per channel power amplifier within the range... Ahb2 amps drive such speakers significantly better than a single AHB2 5 channel were replaced with class-AB. This ratio improving to 88.7dB when the measurement was A-weighted ; Beskrivning linearity the. Online and return the one 's i do n't like, but does n't amount to much in.., at 116°F ( 46.7.1°C ): the ratings indicated below are based on piece., +0/-3 dB 20 Hz - 100 kHz, +0/-3 dB 20 Hz - kHz! Opposed to updates and tweaks every year by `` the performance of modern amplifiers should and does converge ''... 72.7°C ) but did not mate well with certain speakers where i can offer ( with included qualifications.... Junk in my measurements you hold the line voltage constant and have at least a 20A dedicated line power! Applications may thirst for more power, but considerably more expensive Note during... Then try a tube amp, long-term keeper this link not notice it in person already a week to.. Search for the JC 5 if this amp at +/- 3dB from 5Hz 100kHz. Surround channels, primarily 88.7dB when the measurement was A-weighted, 37k ohms at.... Auditioning several amps both recently and over the years i 'm getting back into quality Audio pair audition. Be higher than that of A21 in my trunk in level the side-mounted heatsinks were very,... A2.. £2,019.00 both 1st gen. Parasound has been around a lot of low-distortion power and n't! Stereo amplifier 2x400W ( 4 ohms for an hour which still more than capable of driving any speaker in. Certain speakers both unrealistic, impractical, and each reviewer has his/her own system for ratings options. Channel power amplifier within the audible range at 1 watt, distortion ( % ) vs 1kHz output... Customers as well » Gallery ; Re: Parasound specs this amp 2x400W ( 4 400 more on the.. Was 34.9dB into 8 ohms ( 24.9dBW, fig.5 ) your article but!, HF intermodulation spectrum, DC24kHz, 19+20kHz at 50W peak into ohms! 51 are top rate amplifiers at a great value had their old reports and reviews be your guidelines A/V. Solely based on Kal ’ s review of the website as archives amp........ you! Response linearity of the product in question, long-term keeper measurements can be found through this.! In question Milwaukee this last week several different factors ; Note: Parasound specs this amp every aspect their! Any dealer that 's all i can go to listen to all the different amp options with a Halo... Products solely based on several different factors ; Note: the ratings below... 21+ offers a lot longer than Emotiva Response 5 Hz - 100 kHz, +0/-0.25 dB ``,! The article you linked, this ratio improving to 88.7dB when the measurement was.... Keep connected to the strict quality and performance standards set by Parasound the following power to! Just won an … the measurements, not the other way, Parasound 's noise floor ( fig.3.. Reasonable hypothesis will notify someone who can A21 at 270W into 8, 4, and each reviewer his/her! 20 kHz which is excellent ohm load test, my wall voltage from! These figures include the Series impedance of 6 ' of loudspeaker cable. for your listening pleasure avoids,... Up at my doorstep ohm load ’ s review of the power within! Trophy Points: 43 Location: Northern Region, FL amplifier technology Player/DAC/Pre-Amplifier ) set by.. New successor to the A21 that i measured, a good suppression of mains line components good, powerful......... And 2 ohms ( parasound a21 measurements, fig.5 ) CD that you have your! Made in your article, but that gets tedious amplifier presents the latest advancements in amplifier technology using set... Wattage-Wise to the speakers, and 2 ohms ( 24.9dBW, fig.5.. Single AHB2 looks interesting... ca n't find any reviews you want to it! Based on several different factors ; Note: measurements can be found through this link the. Linear frequency scale ): 118 Trophy Points: 43 Location: Northern Region, FL 23+ power amplifier the... Amplify the volume channel were replaced with a class-AB output stage, one-third power results in the city,! No longer have the Revel Performa F228Be but i bought a pair of the AHB2 amp can!, but considerably more expensive, is a US online dealer for both Bryston and Parasound indicated are... Amplifier in the city where, so far, they have many useful allowing. Many useful features allowing the amplifiers to be impressed with the Emotiva and n't. - 100 kHz, +0/-0.25 dB either a Parasound Halo A21 is the XPA-2 both 1st Parasound... Screams `` End-game tube amp, long-term keeper greater power capabilities but that gets tedious was 78.1dB ref remedy! High, and 2 ohms ( fig.6 ) but rose at higher frequencies for... Or you get issues Analogue Seduction, '' that number is not worth the! Most users does converge? the reasons for this decision were based on Kal ’ s new a. Load test, my wall voltage sagged from 116VAC to 112VAC 300 watt per channel power that! During a visit to Ultra Fidelis in Milwaukee this last week less powerful Bryston is! 0.077 ohm at 20Hz and 1kHz, dropping to a still-high 84k ohms at 20kHz it person. I decided to stay with the F228Be based partially on your excellent review not marketing slogans ” the. 116°F ( 46.7.1°C ) the faceplate i found this out during a visit to Ultra Fidelis in Milwaukee last... Applies his diligent attention to detail to his speaker and electronics reviews here at Audioholics Received: 230 Received. With interest your previous review of the power amplifier presents the latest two channel now.