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Old 16th October 2010, 07:24 PM   #1
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Default Modding Parasound Halo A21

Hi

I'd love to have JC-1 monoblocks, but these are big (like two of my A21), and I do not like their 35W constant power consumption..

A21 is fabulous, I compared it against two much pricier amps and still preferred A21

What I would like to improve:
imaging, more transparency and lower noise floor..
and Class A bias.. now is it 10W? 15W would be likely better..

I like the sound signature, so I merely looking for 'more of the same'..
I am not so strong in electronics, so the advises here I will bring to my engineer..

thanks in advance,
--Michael
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Old 16th October 2010, 08:28 PM   #2
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Like I mentioned in a previous message about Parasound amps , anything you do will likely make them sound worse and compromise their longevity. Those are fantastic amps just as they are. I know it's a DIYers nightmare, but I wouldn't do a thing to them.

Paul.
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Old 6th March 2014, 11:48 AM   #3
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Quote:
Originally Posted by michael12345 View Post
Hi

I'd love to have JC-1 monoblocks, but these are big (like two of my A21), and I do not like their 35W constant power consumption..

A21 is fabulous, I compared it against two much pricier amps and still preferred A21

What I would like to improve:
imaging, more transparency and lower noise floor..
and Class A bias.. now is it 10W? 15W would be likely better..

I like the sound signature, so I merely looking for 'more of the same'..
I am not so strong in electronics, so the advises here I will bring to my engineer..

thanks in advance,
--Michael
hello, i am an owner of halo a21 and i'd like some mods but i don't have the schematic. please help.
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Old 21st March 2014, 08:28 AM   #4
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Schematics are available from Parasound... Or if I can figure out how to attach them I'll do so... Else, pm me you email and I'll send them over to you that way.

To be honest , I sort of agree with Paul, although have been tempted to try other brands of feedback resistors.
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