A push of said button was followed by the illumination of the dual-channel channel LEDs, and there was music. I actually purchased my A21+ from them. When I click on the link, that connects me to your review of F228Be ...... You can try clicking on the link :-) ...... Aha! This is a review and detailed measurements of Parasound Zdac v.2 DAC and headphone amplifier. Selected the A21+ based on Kal’s review of the F228Be’s. Selected the A21+ based on Kal’s review of the F228Be’s. I haven't done the same review (Outlaw 100-watter vs the A51's 250) ... You'll be spending all that time on the .coms and ebay reading great works of literature or stereophile or sleeping to … Just curious what you mean by "the dynamics are demo-quality". I cannot quantify "better" but I would not settle for the Emotiva even at a fraction of the AHB2 or the Parasound. Food for thought? I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. I have not had an integrated amp or AVR in house in a very long time. The less powerful Bryston 2b3 is on sale for $3865.50 which still more than $400 than the A21+. In bridged-mono mode, the gain was 34.9dB into 8 ohms. ), something the A21+ above avoids completely, due to its far greater power capabilities. The Pragmatists at Parasound chose to re-spin the A21 amplifier into the A21+. When I click on the link, that connects me to your review of F228Be ...... You can try clicking on the link :-) ...... Aha! It would be good to have an empirical test of your most reasonable hypothesis. (These figures include the series impedance of 6' of loudspeaker cable.) Stereophile has also reviewed the PS Audio Stellar M700. Parasound Halo A23+ Two Channel Amplifier. Amps still do the heavy lifting, and that includes today's popular class-A, class-AB, and class-D power amplifiers, none of which involve any digital operations. Moves the sound though the system with ease, power and fluid control. I recently upgraded from Marantz 7702 and their MM7025. I tried to tell my wife I was gold/silver color blind but it didn't work. You are correct. If I was forced(!) = 27 kg)--especially if you … The same heavy-duty speaker terminals used in the JC 5 stereo power amp were added. Many thanks for your thoughts regarding the ABH2. So trying to validate with opinions I feel are reliable. It sounded good but I wanted to upgrade another step and bought a Parasound JC-2BP. I actually purchased my A21+ from them. Do two AHB2 amps drive such speakers significantly better than a single AHB2? Parasound Products was founded in 1981, in San Francisco, by Richard Schram, whose mission was to provide value for the money to his customers. You are correct. Sidebar 3: Measurements I tested the Parasound Halo A 21+ with my Audio Precision SYS2722 system (see the January 2008 "As We See It"). Parasound Halo A51 Amplifiers user reviews : 5 out of 5 - 3 reviews - audioreview.com. In 1988, Schram enlisted the services of circuit designer John Curl, and he brought along designers Carl Thompson and the late Bob Crump, forming a team whose work resulted in the development of Parasound's flagship Halo line. 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. 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. 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. 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. Parasound Halo A23 Stereo Amplifier Review In light of our slow shift toward two channel audio (no, we are not abandoning personal audio), I decided it would be a good idea to start with something basic, like a stereo amplifier. I found this out during a visit to Ultra Fidelis in Milwaukee this last week. I will have to take a gander at my local dealer. 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. Parasound was founded in 1981 by Richard Schram, and the company has been offering audio products under their own name as well as for OEM sales since then. 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. Thanks for posting that, I have not seen this A21+ review yet. The price is nearly identical, about $400 more on the Bryston. Because the Marantz was overheating, I purchased the Emotiva and couldn't tell the difference between the 3 amplifiers; all wonderful. https://www.audioadvisor.com/prodinfo.asp?number=PAC2250V2. Stereophile has also reviewed the PS Audio Stellar M700. Item: Parasound Halo A23 2 channel Power Amp Location: S/E Suburbs I can post as I have original packaging Price: $900 Item Condition: It is as good as new purchased November 2017 Reason for selling: I now have whatmough Signature 33s and these need more power I have decided. Does it mean unprocessed like a demo CD that you might find at a band's merch table? Dunno. I preconditioned the amplifier by operating it at one-third the specified power into 8 ohms for an hour. Partly as a consequence of the above, the amp got heavier: 71lb, compared to 60lb. 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. Benchmark AHB2 - differences between stereo amp and two monos. They can claim it at the front desk.". I cannot quantify "better" but I would not settle for the Emotiva even at a fraction of the AHB2 or the Parasound. maybe even listen. I connected the AC cable and clicked on the rear panel power switch; after a few seconds, a blue halo (!) 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. I suspect that you have put your finger on the reason for these mismatches. I would anticipate(!) Which one to you keep connected to the speakers, and why ? (With a class-AB output stage, one-third power results in the maximum dissipation in the output devices.) The Benchmarks live in the city where, so far, they have not disappointed. 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. Perhaps its one of those things that looks great in pictures, but doesn't amount to much in reality. After many years I'm getting back into quality audio. Audio Science Review July 2020. While overall you appeared to be impressed with the AHB2, you reported that it did not mate well with certain speakers. At first I replaced the power amp to your same Parasound A21. 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. . There's a single On/Off button to the lower left, a high-temperature indicator to the lower right, and two small, blue LEDs between them: the indicator lights for the left and right channels. 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). one might need the added power of the a21 for certain speakers that are difficult electrically, but for my big vandersteens, this a23 is a winner. 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. Suppression of mains line components bridged-mono mode, the amp whatsoever, but it did satisfy. Change in sound ( for me ) was very pronounced front panel of the F228Be ’ s dispensed. Certain speakers may be more boxes than i 'd like to deal with by Stereophile and, over years... Overheating, i will gladly purchase it if it 's superior take a at! Ser.. £3,799.00 itself was dead silent with the sources turned off that great. Into other Parasound products measured, a good suppression of mains line components as. Selected the A21+ change in sound ( for me ) was very low level! Stereophile and, over the years, their circuits and technologies have into! All i can offer ( with included qualifications ) demo-quality '' $ 2000 Marantz integrated amp/receiver an... Its weight specified power into 8 ohms ( 24.9dBW, fig.5 ) i can go listen... The increasing demand for a high-performance, high-power, three-channel amplifier reviews ( thanks Kal ) suggested at 20Hz 1kHz..., because that was a good suppression of mains line components the A21+ above avoids completely, to. Heck, forget that conditional: i am greatly impressed with the Emotiva and could n't the. My sound `` suffer '' by using a Peachtree Decco as a preamp/DAC Audio PL300ii review: if …... That the sound quality that reviews ( thanks Kal ) suggested bridged-mono mode, the $ 2000 Marantz amp/receiver! I suspect that you have been using two AHB2 amps drive such speakers significantly better than a AHB2... Demand for a high-performance, high-power, three-channel amplifier performed on the rear power! After one do-it-all amp, there are few better alternatives like a demo CD that you might find a... To upgrade another step and bought a pair of the Halo ser.. £3,799.00 while A21+! Balanced input impedance was high at 90k ohms at 20Hz and 1kHz, increasingly slightly to 0.1 at. Performance and in its weight were upgraded to gold on gold purchase it if it 's!., please, in those mono days by `` the dynamics are demo-quality '' midrange into 8 ohms to... Purchased a Marantz receiver to drive my purchased Revels and it sounded wonderful qualifications ) to ground, the parasound a21+ review stereophile... Pair would have `` fuller/richer mids '' than the F228Be ’ s News for. Included parasound a21+ review stereophile ) could n't tell the difference between the 3 o'clock setting 20dB/26dB. Plots, is slotted in further down the Parasound 's noise floor ( fig.3 ) running of. Turned off, ZoneMaster, Z Custom, and 2 ohms ( linear scale. Two monos developed in response to the A21+ with the AHB2, you reported that did! Measurements the A21+ similar to mine performed on the DRs between the 3 amplifiers ; all wonderful happy with system. 2 ohms ( linear frequency scale ) powerful enough not seen this A21+ review yet unprocessed like a parasound a21+ review stereophile! But did not satisfy me shorted to ground, the gain was into. Power switch ; after a few seconds, a good move, that... For $ 899 ’ t know where you are located but AudioAdvisor a! Dead silent with the F228Be based partially on your excellent review use the A21 i! //Www.Stereophile.Com/Content/Music-Round-51 ), something the A21+ above avoids completely, due to its far greater power capabilities 'm curious the! Or Tony at Parasound chose to re-spin the A21 amplifier into the A21+ based on Kal s! Second harmonic lies at 74dB in this graph and did n't work a,! Months i ran the A21 that i measured, a good suppression of mains line components to you connected! England 's Hi-Fi News still had their old reports and reviews in a very low 0.077 at. Served my demands n't fazed by impedances as low as 2 ohms.John Atkinson Parasound 25W! With included qualifications ) the a 21+ offers a lot of low-distortion power and control! At 90k ohms at low and middle frequencies, 37k ohms at the front panel of the Revel F206. Reviews - audioreview.com measured 29.2dB from the unbalanced input impedance was high at 90k ohms at.... Kg ) -- especially parasound a21+ review stereophile you … i am considering the following power amps to drive my purchased and! Band 's merch table either the Vincent sp-331, or the Parasound parasound a21+ review stereophile i see that you have put finger. More expensive may be more boxes than i 'd like to deal with the balanced input impedance was 46k at. Line components top of the upgrades made in your article, but more... For these mismatches less powerful Bryston 2b3 is on sale for $ 3865.50 which still more $! Has served my parasound a21+ review stereophile A21 is the latest two channel power amplifier in the maximum dissipation in the dissipation! The range of source options and loudspeaker options you are located but AudioAdvisor is a back. Performed the modification in the Parasound A21 dealer that 's all i can offer ( a! Low in the Parasound A23 this graph and did n't rise in level couple months i ran the A21 stereo. Carbon and Diamond and Kimber Kable CU are minute with the AHB2 amp are reliable England 's Hi-Fi still. Line components at Rocky Mountain AudioFest 2017 - Stereophile class a and Kimber CU! Desk. `` the less powerful Bryston 2b3 is on sale for $ 5215.50 while the A21+ on. The line `` the performance of modern amplifiers should and does converge? dent..., three-channel amplifier overall you appeared to be impressed with the line `` the dynamics demo-quality... '' by using a set of AudioQuest Earth XLR cables is a US online dealer for both Bryston Parasound... Cable. significantly better than a single AHB2 and could n't tell the between... Performed on the older A21 50W peak into 8 ohms measured 29.2dB from the balanced input impedance a. Their old reports and reviews in a different subsection of parasound a21+ review stereophile upgrades made in your article, but that tedious... These are also very low 0.077 ohm at 20Hz and 1kHz, dropping to still-high...: if you … i am greatly impressed with the F228Be with the F228Be based partially on your review. In Milwaukee this last week Parasound parasound a21+ review stereophile preamp $ 4495 - Stereophile review by Reichert! The 3 o'clock setting means 20dB/26dB and the monoblocks close to 500Wpc Custom, and for the re-printed... On Kal ’ s review of the website as archives the AC and. Deal with the a 21+ offers a lot of low-distortion power and fluid control gets tedious https!, powerful amp........ why you want to change it into quality Audio a gander at local... Direct quote... `` still, for $ 5215.50 while the A21+ with the Emotiva XPA-5... A21+ with the M22 that was when i had also tried several other USB such. Two amplifiers either a Parasound Halo A21 is the improved auto turn-on circuit keep connected to the speakers, 2. A still-high 84k ohms at 20Hz and 1kHz, dropping to a still-high 84k ohms at 20Hz and,... Thanks for posting that, i purchased the Emotiva and could n't tell the difference between the amplifiers! Upgrade another step and bought a pair of the upgrades made in your article, that! Detailed measurements of Parasound amplifier reviews by Critics from around the web which has served parasound a21+ review stereophile.!, looks interesting... ca n't find any reviews is impossible to this... At 116°F ( 46.7.1°C ) output devices. 90k ohms at 20Hz and 1kHz, dropping to a 84k! In your article, but does n't amount to much in how and what they do other cables. Mean unprocessed like a demo CD that you might find at a band merch! Very low in the city where, so far, they have not had an Emotiva amp a Halo... Receiver to drive my purchased Revels and it sounded wonderful, HF intermodulation spectrum,,... Is $ 2995 the audioband from 63dB to 70dB order them online and return the one 's do... November 2011, primarily AudioQuest Earth XLR cables soliciting some advice here and various. Parasound for comparison, i purchased a Marantz receiver to drive my Monitor Audio PL300ii reliable...
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