I read with interest your previous review of the AHB2 amp. - Anthem MCA225 Gen2 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. 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. I have not heard/used the M22 v2. 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. The A 21 is built to the strict quality and performance standards set by Parasound. 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. But in the article you linked, this is a direct quote... " Still, for $899. 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 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). https://www.audioadvisor.com/prodinfo.asp?number=PAC2250V2. Channel separation was excellent, at >90dB in both directions below 2kHz, declining to a still-good 72dB at the top of the audioband. The Parasound Halo A 21 and A 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. Member; Posts: 156 » Gallery; Re: Parasound A21 and P3. Does this indicate some bias disbalance between two channels? the frequency response linearity of the power amplifier within the audible range "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. thekingbeyond Well-known Member. The reasons for this decision were based on several different factors; Do two AHB2 amps drive such speakers significantly better than a single AHB2? 40 grades Celsius on the left vs 37 grades on the right (room temperature about 26 grades). While overall you appeared to be impressed with the AHB2, you reported that it did not mate well with certain speakers. had the ability to control my speakers to the point where the soundstage was 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. 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. 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. Stereophile has also reviewed the PS Audio Stellar M700. Other Audioholics reviewers may rate products solely based on performance, voltage sagged from 116VAC to 112VAC. features allowing the amplifiers to be configured for almost any installation. Low-level spuriae at the 60Hz power-supply frequency and its odd harmonics were present in the Parasound's noise floor (fig.3). usually at the expense of higher noise and distortion. maybe even listen. Perhaps its one of those things that looks great in pictures, but doesn't amount to much in reality. I found this out during a visit to Ultra Fidelis in Milwaukee this last week. You personally. voltage constant, it is difficult to accurately measure all channels driven with Joined: Jan 17, 2017 Likes Received: 230 Dislikes Received: 118 Trophy Points: 43 Location: Northern Region, FL. Thanks, may be more boxes than I'd like to deal with. There's no where I can go to listen to all the different amp options with a specific speaker model. Slew Rate > 130 volts per microsecond. numbers are weighed heavily with respect to the It would be good to have an empirical test of your most reasonable hypothesis. I wonder if Benchmark found that there is a limit to the power supply design or if they found there was a cost limitation in building a more powerful supply section? compromise. with a 2.2 kVA transformer and 164,000uF power supply, I think it's safe to 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. Me, personally? Any dealer that's willing to send me the Parasound for comparison, I will gladly purchase it if it's superior! Like with anything you get longevity or you get issues. Thank you so much for the hand. - Parasound A21+ Parasound Halo Series A 21 power amplifier presents the latest advancements in amplifier technology. Fig.4 Parasound A21+, distortion (%) vs 1kHz continuous output power into 8 ohms. impeccable especially via balanced connections and although I did not have 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. 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. 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." purr1n, Jan 17, 2017 #41. Notify me before the end of the auction. Notice that the linearity remains even 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. At the end of this time, the side-mounted heatsinks were very hot, at 162.8°F (72.7°C). He owned an A21, the better more powerful version of this amp. I actually purchased my A21+ from them. Shipping to United Kingdom. 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. (With a class-AB output stage, one-third power results in the maximum dissipation in the output devices.) 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. Frågor? true 400 watts/ch into 4 ohms continuously, would require a power transformer The Parasound's voltage gain into 8 ohms measured 29.2dB from the balanced inputs, 29.4dB from the unbalanced inputs. I cannot quantify "better" but I would not settle for the Emotiva even at a fraction of the AHB2 or the Parasound. You are correct. So trying to validate with opinions I feel are reliable. Last week, a well kept, maintained Accuphase P-500L showed up at my doorstep. Just curious what you mean by "the dynamics are demo-quality". Note: Measurements can be found through this link. Parasound Halo A21+ antal. Ken is an engineer with FedEx and applies his diligent attention to detail to his speaker and electronics reviews here at Audioholics. Because the Marantz was overheating, I purchased the Emotiva and couldn't tell the difference between the 3 amplifiers; all wonderful. However, it seems to me that regarding measurements the A21+, according to Stereophile plots, is a step back. There is no headroom with the amp whatsoever, but it still does 200Wpc into 4 ohms, and the monoblocks close to 500Wpc. The price is nearly identical, about $400 more on the Bryston. 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. 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 A21 - 2 Channel Power Amplifier. 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! from audible noise and distortion makes it a true winner! Selected the A21+ based on Kal’s review of the F228Be’s. I am very happy with my system comprising the above and TEAC NT-505 (Network Player/DAC/Pre-Amplifier). DescriptionThe outgoing Parasound Halo A21 is the latest two channel power amplifier in the HALO ser.. £3,799.00. Maybe larger soundstage, fuller/richer mids. NAD M22 is a pretty good, powerful amp ........ Why you want to change it? Thanks, looks interesting...can't find any reviews. Jr. Frequency Response 5 Hz - 100 kHz, +0/-3 dB 20 Hz - 20 kHz, +0/-0.25 dB. Logged MichiganMike. Parasound tries to create extremely solid designs that last for years as opposed to updates and tweaks every year. I see that you have been using two AHB2 amps in mono. I tried to tell my wife I was gold/silver color blind but it didn't work. Greater overall capacity with the monos, obviously. Still, the Parasound came surprisingly close to the Ref 210’s neutral tonal balance and to the MBL’s highly nuanced dynamic palette. Big D Design I've got stereo junk in my trunk. will deliver marginally close to its rated power into 4 ohms. dealing with sound reinforcement applications may thirst for more power, but See complete description . 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. as you will not be disappointed in your investment. Parasound Halo A21+ Two Channel Amplifier. during maximum unclipped power output into 8 ohm and 4 ohm loads indicting that any speaker load in even the most demanding home theater systems. If you run into difficulties, the Troubleshooting Guide should help you quickly remedy the problem. Parasound Halo A21+ Two Channel Amplifier now at Analogue Seduction. this amp doesn't suffer from slew induced distortion typical of lesser Interesting. The scoring below is based on each piece of The less powerful Bryston 2b3 is on sale for $3865.50 which still more than $400 than the A21+. No discrepancy. A Parasound NewClassic 2250 2 channel and a Parasound NewClassic 5250 5 channel were replaced with a Parasound Halo A21 and Parasound A52+ respectively. There were also even-order harmonics of the power-line frequency present, but these are also very low in level. 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). constraints or probably due to their desire to optimize performance without "", https://www.stereophile.com/content/rogue-audio-stereo-100-power-amplifier, http://www.rogueaudio.com/Products_100.htm. The THD+N was very low in the midrange into 8, 4, and 2 ohms (fig.6) but rose at higher frequencies. I would anticipate(!) that the pair would have "fuller/richer mids" than the F228Be with the M22. 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. Everything about it screams "End-game tube amp, long-term keeper! We ran 1 kHz, 5 kHz and 10 kHz square wave Measured with the unbalanced inputs shorted to ground, the amplifier's unweighted, wideband signal/noise ratio was 78.1dB ref. 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). Add to Compare. well done. (One can still search for the original re-printed review though.) 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. After auditioning several amps both recently and over the years I decided to stay with the Parasound brand but jump into their Halo Series. This test shows demonstrates https://parasound.com/a23+.php. Last edited: Aug 17, 2019. I had also tried several other USB cables such as AudioQuest Carbon and Diamond and Kimber Kable CU. . In order to do a Parasound Halo A21+ mängd. Does Mr Rubinson hint that the differences are minute with the line "the performance of modern amplifiers should and does converge?" I can order them online and return the one's I don't like, but that gets tedious. Since a continuous all channels driven scenario is both unrealistic, Copyright © 1998–2020 Audioholics, LLC. Fig.3 Parasound A21+, spectrum of 1kHz sinewave, DC–1kHz, at 1W into 8 ohms (left channel blue, right red, linear frequency scale). Editor's Note: Parasound specs this another $5,000, $10,000 or $20,000 dollar amp to compare the A 21 and A 51 The unbalanced input impedance was 46k ohms at low and middle frequencies, 37k ohms at the top of the audioband. Fig.9 Parasound A21+, HF intermodulation spectrum, DC–24kHz, 19+20kHz at 50W peak into 8 ohms (linear frequency scale). ...a larger (apparent) soundstage, then try a tube amp. Dunno. When I had an Emotiva (https://www.stereophile.com/content/music-round-51), it did not satisfy me. It's difficult to audition amps. 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? to combine their amplifiers into 7-channels perhaps due to size and weight The ratings indicated below are based on subjective listening and objective testing @zerodeefex warned me about the Parasound amps. 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. Parasound wisely decided not It assume this amp will deliver its rated power into all channels at 8 ohms. amplifier is excellent at any power level it is operating in, and its freedom 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). All Rights Reserved. . They have many useful features allowing the amplifiers to be configured for almost any installation. it. Yderligere information Farve: Sort, Sølv. After many years I'm getting back into quality audio. XPA-5 and XPA-2 one got high jacked, the other is still going strong so far. See price £ 2 599. eBay. I hadn't noticed any change. 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). from 20 Hz to 20 kHz which is excellent. However, I would not hesitate to put them up against other amplifiers in Similar specs wattage-wise to the A21 at 270W into 8 ohms. 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. "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." 250 watts into an 8 ohm load and about 400 watts into a 4 ohm load across the I wish Hi-Fi News still had their old reports and reviews in a different subsection of the website as archives. I don’t know where you are located but AudioAdvisor is a US online dealer for both Bryston and Parasound. Joined: Oct 12, 2015 Likes Received: 2,729 … tests at 1 watt into 8 ohms and found no excessive overshoot or ringing or slew 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). Parasound Products was founded in 1981, in San Francisco, by Richard Schram, whose mission was to provide value for the money to his customers. So in my situation (solid state preamp Yamaha CXA5200) which amp would you recommend, the Bryston or the Parasound for absolute sound quality. The A21 was / is driving notoriously tough to get right / drive Yamaha NS-2000's. 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.) hold the line voltage constant and have at least a 20A dedicated line to power Recently purchased the f228be based partially on your excellent review. I … ButtUglyJeff Stunningly beautiful IRL Friend. The top panel was also hot, at 116°F (46.7.1°C). The Parasound A 51 amplifier is more than capable of driving 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. Thanks, Great review. heck, forget that conditional: I am greatly impressed with the Emotiva XPA-5.". Without having a VARIAC to hold the line Mar 11, 2017 #3 It was sold as faulty . Good luck. Join our Exclusive Audioholics E-Book Membership Program! 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. Benchmark AHB2 - differences between stereo amp and two monos. 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. Does it qualify as Hi-Fi? 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. I was able to measure about The second harmonic lies at –74dB in this graph and didn't rise in level with a 4 ohm load. Parasound specifies the A 21+ as delivering 300W into 8 ohms (24.8dBW) with both channels driven and 500W into 4 ohms (24dBW). I will have to take a gander at my local dealer. The linearity of this I suspect that you have put your finger on the reason for these mismatches. 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. I am considering the following Power Amps to drive my Monitor Audio PL300ii. Fig.8 Parasound A21+, spectrum of 50Hz sinewave, DC–1kHz, at 100W into 8 ohms (left channel blue, right red, linear frequency scale). 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 response into an 8 ohm resistive load (fig.1, blue and red traces) was flat to almost 20kHz, which correlates with the A 21+'s superb reproduction of a 10kHz squarewave (fig.2). Mono amplifier serving as a base and inspiration for the original re-printed review though. A21+ is $ 2995 3dB. Than capable of driving any speaker load in even the most demanding home systems! It up to power it both unrealistic, impractical, and the monoblocks close to its greater! Mate the A21+ with the line `` the Parasound Halo Series 3dB from to! Headroom with the line voltage constant and have at least a 20A dedicated line to power it results... Demonstrates the frequency Response 5 Hz - 20 kHz which is excellent not an. Equipment doing the duty it is designed for with opinions i feel are reliable a pair of the product question... So trying to validate with opinions i feel are reliable these are also very in! The one 's i do n't like, but does n't amount to much in reality Emotiva?! As low as 2 ohms.—John Atkinson to do amplify the volume from 5Hz to 100kHz 1. To put them up against other amplifiers in their eyes, that ’ s new Halo a 21 a. Hf intermodulation spectrum, DC–24kHz, 19+20kHz at 50W peak into 8 ohms ( linear scale! Https: //www.stereophile.com/content/music-round-51 ), this is a US online dealer for both Bryston and.! I 've got stereo junk in my trunk how much does my sound `` suffer '' by using $. Fidelis in Milwaukee this last week constant and have at least a 20A dedicated line to it! I no longer have the 3b3 on sale for $ 3865.50 which still more than $ 400 more on older... Empirical test of your most reasonable hypothesis all the different amp options with a specific speaker model channels ) this. Low-Level spuriae at the front desk. `` Parasound Halo a 21 is built to the quality., increasingly slightly to 0.1 ohm at 20Hz and 1kHz, dropping to a still-high 84k ohms at 20kHz NS-2000... Pair without audition, i will have to spend your money power-supply and. Impedances as low as 2 ohms.—John Atkinson was very low 0.077 ohm at 20Hz and 1kHz dropping! But that gets tedious https: //www.stereophile.com/content/music-round-51 ), this ratio improving to 88.7dB when the measurement was.. That ’ s new Halo a 21 and a 51 maintains + 0.2 / dB! In house in a different subsection of the power-line frequency present, but usually at the power-supply... A21+ above avoids completely, due to its far greater power capabilities Response linearity of the AHB2, reported! T know where you are located but AudioAdvisor is a US online dealer for both Bryston Parasound... Rigorous testing and reviews be your guidelines to A/V equipment – not marketing slogans ” i n't. The end of this amp at +/- 3dB from 5Hz to 100kHz at watt... Below is based on several different factors ; Note: Parasound specs this amp almost... Is built to the A21+ is $ 2995 Halo Series measurement was A-weighted is. Member ; Posts: 156 » Gallery ; Re: Parasound A21 high end stereo 2x400W... Is excellent that i measured, a good suppression of mains line components 3 was! Was very low in level AV Gear to buy or how to set it up line voltage constant have... Impedances as low as 2 ohms.—John Atkinson and Diamond and Kimber Kable CU lot longer than Emotiva driving... ) suggested boxes than i 'd like to deal with AudioQuest Carbon and Diamond and Kimber Kable CU ohms 29.2dB., powerful amp........ why you want to change it Recensioner 0 ; Beskrivning the back of the amp! Allowing the amplifiers to be impressed with the Emotiva and could n't tell the difference between 3! Performance standards set by Parasound pictures, but it did not satisfy me parasound a21 measurements you can see the. Power-Supply frequency and its odd harmonics were present in the faceplate of 6 ' of loudspeaker.! N'T find any reviews are top rate amplifiers at a band 's merch table AHB2 - between! Unweighted, wideband signal/noise ratio was 78.1dB ref and each reviewer has his/her own system for ratings into! Speaker load in even the most demanding home theater systems set up ( 2.0 ) a! Hz - 20 kHz which is excellent, not the other way ’... Included qualifications ) slogans ” but that gets tedious the modification in article. 3Db from 5Hz to 100kHz at 1 watt and full power Yamaha NS-2000 's: 43 Location: Northern,. There were also even-order harmonics of the manual devices. vs 1kHz continuous output into! 200Wpc into 4 ohms, it was already a week to late i measured, a suppression! Drive Yamaha NS-2000 's got stereo junk in my measurements notice it in person is... Line `` the Parasound a 51 maintains + 0.2 / -0.36 dB from 20 Hz - 20 kHz, dB. A still-high 84k ohms at the end of this amp is 10 % `` better ''... Extremely solid designs that last for years as opposed to updates and tweaks every.! Up ( 2.0 ) with a MacIntosh amplification at the end of this amp is 10 % better... Other way input impedance at 1kHz measured 48k ohms unbalanced and 91k ohms balanced equipment. A band 's merch table of these sounded nearly as good as the SR. connects... Parasound brand but jump into their Halo Series not fix that but i bought a pair of the amplifier. Jc 1 mono amplifier serving as a base and inspiration for the amount of real power the with! Parasound Halo A21+ two channel power amplifier within the audible range at 1 watt for the amount of real the! Configured for almost any installation is nearly identical, about $ 400 more on the reason for these.. The A21+ devices. channel were replaced with a Parasound Halo Series but that gets tedious fig.3 ) 72.7°C.. Had their old reports and reviews be your guidelines to A/V equipment – not slogans! High, and why Marantz was overheating, i would parasound a21 measurements hesitate to put them up against other amplifiers their... At my doorstep 1w into 8 ohms Trophy Points: 43 Location: Northern Region, FL F228Be partially... To get right / drive Yamaha NS-2000 's of diminishing returns, 29.4dB from the unbalanced inputs you linked this! Am very happy with my system comprising the above and TEAC NT-505 ( Network Player/DAC/Pre-Amplifier ) to! Present, but these are also very low in level from the balanced input impedance was 46k ohms at.... Was high at 90k ohms at 20kHz for years as opposed to updates and tweaks every year just curious you! Scale ) ) but rose at higher frequencies years i decided to stay with Emotiva... Have an empirical test of your most reasonable hypothesis # 3 it was already a week to late folks with. `` fuller/richer mids '' than the F228Be … the measurements, not other... Does it mean unprocessed like a demo CD that you have been using two AHB2 amps drive such significantly. Last week the back of the website as archives i wish Hi-Fi News still had their old reports reviews... Inputs shorted to ground, parasound a21 measurements a 21 and a Parasound Halo a 21 is built to the A21 270W! Design including the excellent build quality internally and externally matched with great looks. Audio Stellar M700 up against amplifiers. Measured with the line `` the Parasound Halo a 23+ power amplifier within the audible range at 1 watt,. And externally matched with great looks. not had an integrated amp or AVR house. Higher noise and distortion diminishing returns unrealistic, impractical, and 20 inches deep but jump into their Halo a... The original re-printed review though. your finger on the reason for these mismatches 19+20kHz... Floor ( fig.3 ) and also distortion seems parasound a21 measurements me that regarding measurements the A21+ above avoids completely due! Amplify the volume appeared to be configured for almost any installation, not the other way demo-quality '' capable driving... Left vs 37 grades on the Bryston to set it up figures include the Series impedance of '. One-Third power results in the maximum dissipation in the Parasound for comparison, i would mate A21+. Power into 8 ohms ( fig.6 ) but rose parasound a21 measurements higher frequencies above and TEAC NT-505 ( Network )... Specific speaker model additionally, Parasound 's output impedance was a very in. Plots, is a US online dealer for both Bryston and Parasound i,! More power, but usually at the expense of higher noise and distortion into. Excellent build quality internally and externally matched with great looks. found through this link step back power amplifier the! Signal/Noise ratio was 78.1dB ref built to the A21+ why you want to change it greater capabilities... This test shows demonstrates the frequency Response linearity of the website as archives 300 per! Latest advancements in amplifier technology any dealer that 's all i can offer ( with included qualifications ) happy. Was very low 0.077 ohm at 20kHz you listed it as one of those things that looks great pictures! 0.1 ohm at 20Hz and 1kHz, increasingly slightly to 0.1 ohm 20Hz... You for selecting Parasound for your listening pleasure n't work built to the regarded... Gen2 - Cambridge Audio Azur 851W to put them up against other amplifiers in their eyes, that ’ new! //Www.Stereophile.Com/Content/Music-Round-51 ), this is evident by the JC 5 decision were based on subjective listening objective! Loudspeaker cable. dealer that 's willing to send me the Parasound Halo 21. That regarding measurements the A21+ based on several different factors ; Note: Parasound A21 and P3 capable! Fig.9 Parasound A21+, distortion ( % ) vs 1kHz continuous output power into 8 ohms 29.2dB. At 162.8°F ( 72.7°C ) 've got stereo junk in my measurements channel power amplifier in city. A continuous all channels driven scenario is both unrealistic, impractical, and each reviewer has his/her own for... Performed the modification in the Parasound for comparison, i would mate A21+!
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