I should read owner's manuals more often... The recommended ventilation requirement without a fan is: If you are not using a fan, allow at least six inches on each side and above the amplifier, and do not close off the front with a cabinet door or panel. Or use fans.
Skrol, I am glad you found this problem and did something about it. I would NOT put any power amp in a small cabinet, but others have. A small, quiet fan could do wonders for your situation.
Mr. Curl, I had good fun getting this amp up and running again and it really blew me away when I put it in my main system. I am using the Parasound C/PT600 for a preamp for now and am looking to replace it with PHP-850 or one of the PLD-xxxx.
I found a few 12V dc muffin fans in my collection of stuff that I may put to use. Ultimately, I want to locate the amp remotely in my basement where it stays nice and cool. I need longer interconnects for that though and to build a shelf.
I found a few 12V dc muffin fans in my collection of stuff that I may put to use. Ultimately, I want to locate the amp remotely in my basement where it stays nice and cool. I need longer interconnects for that though and to build a shelf.
Parasound Biasing Instructions
In case anyone needs, I have posted the biasing instructions that I used.
Note: there is a how-to video floating around the web on biasing a Parasound amp. I believe the guy is incorrectly referencing to ground rather than measuring across the emitter resistors.
Cheers
Stan
In case anyone needs, I have posted the biasing instructions that I used.
Note: there is a how-to video floating around the web on biasing a Parasound amp. I believe the guy is incorrectly referencing to ground rather than measuring across the emitter resistors.
Cheers
Stan
Attachments
HCA-1206, same bias settings ?
Should the HCA-1206 bias be set to the same ? 17-20mV ? Thanks.
Parasound HA 1000a amp
Should we start a web-site just for Parasound HCA 1000a owners and fans?
I just got one used and out of the box it was great - then I re-capped with matched capacitors+ - .01 percent, as I do. Then by-pass with .5uf polystyrenes. Well, what a piece of gear this amp is, air, imaging, neutrality, dynamics, on good material (musically, not engineering wise - I think it is the ultimate best buy. I've listened to some expensive new stuff lately (which I could never afford by the way), and real amps not Class d, and this amp is easily in their league. John is a master, we know that, but like Pass he does it for the the people who need affordable as well. Thank the stars for democratic audio designers!
Garnet Lewis aka analogue11
Should we start a web-site just for Parasound HCA 1000a owners and fans?
I just got one used and out of the box it was great - then I re-capped with matched capacitors+ - .01 percent, as I do. Then by-pass with .5uf polystyrenes. Well, what a piece of gear this amp is, air, imaging, neutrality, dynamics, on good material (musically, not engineering wise - I think it is the ultimate best buy. I've listened to some expensive new stuff lately (which I could never afford by the way), and real amps not Class d, and this amp is easily in their league. John is a master, we know that, but like Pass he does it for the the people who need affordable as well. Thank the stars for democratic audio designers!
Garnet Lewis aka analogue11
