SoundGuy Posted February 5, 2016 Share Posted February 5, 2016 Item: Parasound Halo A21 Two-Channel AmplifierLocation: Perth WAPrice: $2600Item Condition: Used 9/10 (It looks perfect as far as I can tell)Reason for selling: Upgraded to JC1Payment Method: Pickup - Cash OnlyExtra Info: This is the best amp I've ever owned bar none. I'm only selling because I got my hands on a used Parasound JC1. I don't have the original box so local pick up only. The A21 hardly ever shows up in 2nd hand market coz most owners keep them. Still current model retailing around $5000 in Australia. http://www.pymblehifi.com.au/shop/parasound-a21-two-channel-power-amplifier-halo-range/ Here are the actual user reviews from audioreview,com: "l bought the Parasound halo a21 and the differences of improvement in the sound quality are just unreal, it's like too good to be true, before the parasound i had an Emotiva XPA and after listened to the differences btw the emo and the parasound i got to the conclusion that emotiva made my speakers sounded so bad, the sound quality is night and day differences, I'm was shocked!! It's just unbelievable, to give you a better hint of what I'm talking about, the emotiva is a Honda and the Parasound is a mercedez Benz s63 AMG, or Toyota vs Ferrari lol. I can't believe the sound just can get that good." Stharling a AudioPhile "This has got to be the one giant killer of sustained value the audio world has ever seen. The power and circuitry are phenomenal. I have played this amp through the Rockport Altairs and the Odyssey Audio Kismet reference. In a word, the flow of music was so evolved and liquid....silky with abundant detail. John Curl is the reason, he designed a unit so evolved that Parasound could get twice the price for it and still be undervalued. Don't hesitate to buy, excellent with every speaker I tried including the Maggie 3.6s. Use the balanced inputs when possible, the filtered power is huge for dynamics and I could swear....it is class A beyond the first 10 watts. I had considered the Pass Labs Int 150, but after reading the review in Stereophile where what appeared to be a faulty unit was given a great review, I passed. Glad I did, I saved a ton of money and received an outstanding amplifier. Using the P5 for a pre-amp and it is as great as the amp is" Michael Product Specs Continuous power output (20 Hz - 20 kHz): 250 watts RMS x 2 at 8 ohms, 400 watts RMS x 2 at 4 ohms, 750 watts RMS x 1 (bridged mono mode) at 8 ohms Current capacity: 60 amperes peak per channel Power bandwidth: 5 Hz - 100 kHz, +0/-3 dB at 1 watt Total harmonic distortion: < 0.2 % at full power IM distortion: < 0.04 % Slew rate: >130 V / µsecond Dynamic headroom: > 1.5 dB Interchannel crosstalk: > 80 dB at 1 kHz; > 63 dB at 20 kHz Input sensitivity: 1 V for 28.28 V, THX Reference Level Input impedance: 33 k ohm unbalanced; 66 k ohm balanced S/N ratio: > 112 dB, input shorted, IHF A-weighted Damping factor: > 1100 at 20 Hz Dimensions: 17.25" wide, 7.625" high (7" without feet), 19.12" deep Net weight: 60 lbs. Pictures: 1 Link to comment Share on other sites More sharing options...
Darren69 Posted February 5, 2016 Share Posted February 5, 2016 @@SoundGuy you resemble my own journey, how good are the JC1's? This amp is at a great price and crucially (!!) is the correct colour. These amps are all you might ever need. GLWTS. Link to comment Share on other sites More sharing options...
SoundGuy Posted February 5, 2016 Author Share Posted February 5, 2016 Thanks @@Darren69. I haven't received my JC1 yet. Should be any day now. 2 Link to comment Share on other sites More sharing options...
ChupaChups Posted February 5, 2016 Share Posted February 5, 2016 Thanks @@Darren69. I haven't received my JC1 yet. Should be any day now. You're a very lucky man regarding the JC1, I just upgraded recently otherwise I would have pull the trigger on the 1. GLWTS 1 Link to comment Share on other sites More sharing options...
Ajith Thampi Posted February 5, 2016 Share Posted February 5, 2016 you beat me to the JC1 !! 1 Link to comment Share on other sites More sharing options...
Darren69 Posted February 5, 2016 Share Posted February 5, 2016 Guys, the A21 isn't too far behind, it's the law of diminishing returns after this. Link to comment Share on other sites More sharing options...
SoundGuy Posted February 5, 2016 Author Share Posted February 5, 2016 Thanks @@Sirmorebeer and sorry @@thamps... @@Darren69 you are right. I believe the law of diminishing return is at work after the A21, especially if your speakers are efficient. This is what one guy I found on the net wrote why he chose A21 over the JC1: "This Parasound equipment (A21) is as good as any normal audiophile could ever want or need, the amplifier puts out tremendous power, I could never approach what it's capable of, and as I said, my ears have been spoiled by one of America's top amplifier manufacturers, Jeff Rowland Design Group and I would put the JC-2 BP/ A-21 combination up against their products any day, that is how good the Parasound is, there is simply no sane reason to spend more money, no reason, and that includes the Parasound mono blocks. Why would anyone want to take up that much space and burn that much electricity? The A-21 is a monster, you just don't need any more power unless you are attempting to drive some Magnepan 20 speakers!" By LiteJazz 1 Link to comment Share on other sites More sharing options...
ChupaChups Posted February 5, 2016 Share Posted February 5, 2016 @ArtCor 1 Link to comment Share on other sites More sharing options...
beerbudget Posted February 5, 2016 Share Posted February 5, 2016 @@SoundGuy @@SoundGuy you resemble my own journey, how good are the JC1's?This amp is at a great price and crucially (!!) is the correct colour. :)These amps are all you might ever need. GLWTS. GLWTS@@SoundGuy. Dazza I still have JC1 envy.... but yes the A21 is all the amp most people will ever need. The P5 pre-amp you sold me is a winning combination with the A21. 2 Link to comment Share on other sites More sharing options...
Darren69 Posted February 5, 2016 Share Posted February 5, 2016 Yes, more flexibility too with crap recording etc than if you went JC1-2 as well. Also sub-integration. So glad it went to an appreciative home. Mmmm, subs....... Link to comment Share on other sites More sharing options...
beerbudget Posted February 5, 2016 Share Posted February 5, 2016 How would 2 x A21's sound bridged @ 750 watts RMS or Bi-amped? Hmmm! Link to comment Share on other sites More sharing options...
ufo Posted February 5, 2016 Share Posted February 5, 2016 Thanks @@Darren69. I haven't received my JC1 yet. Should be any day now. Just one JC1?!? I thought they were monoblocks Link to comment Share on other sites More sharing options...
Arif Good Posted February 5, 2016 Share Posted February 5, 2016 PM'd Link to comment Share on other sites More sharing options...
Darren69 Posted February 5, 2016 Share Posted February 5, 2016 PM'd @@agod good luck, they would go great together!! I didn't think to alert you to this, sorry. Link to comment Share on other sites More sharing options...
Darren69 Posted February 5, 2016 Share Posted February 5, 2016 How would 2 x A21's sound bridged @ 750 watts RMS or Bi-amped? Hmmm! JC1's are better suited for that, I have not heard A21's mono'd but someone who has states they are nicer in stereo mode. 1 Link to comment Share on other sites More sharing options...
beerbudget Posted February 6, 2016 Share Posted February 6, 2016 Im thinking mono'd removes the sweet class A portion. Bi-amping may be the go here then... but alas the war office would declare defcon 1..lol 1 Link to comment Share on other sites More sharing options...
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