AudiogoN Forums: Making Stereo amps into Mono

Making Stereo amps into Mono

I have a Nakamichi PA-7, which is gathering dust. I am interested in either changing the power supply to a bigger, beefier one and or, getting another PA-7 and somehow have them both modified to make them MONOS. Is this a crazy idea or would I be better off getting real monoblocks for the price. I really like the sound of this old Pass designed amp, but I feel that there could be more power to be had. Has anyone done something like this?

PAUL

Bemopti123 (System | Reviews | Threads | Answers | This Thread)

05-18-01

Responses (1-6 of 6)

Click title to read one, or click date to read all below it.

05-18-01 You have several alternatives. first, you could get more ef ... Onhwy61

05-18-01 Find a pair of g.a.s. products called "the bridge" ... Elgordo

05-18-01: Genesis168
Bad idea to bridge a stereo into mono. The tonal balance of the amp will change and will result in inferior sound. I would suggest you find another PA7 and use them to Bi-amp your speakers. This way, you power the lows and highs saperately....way better than to bridge.

Bridging not properly done can result your amp to be "fried". Old Nelson Pass designs are famous to blow all outputs at once! (very costly repair bill).
Genesis168 (Threads | Answers | This Thread)

05-18-01: Genesis168
Upgrading the power supply capacitors is another alternative. You could "bypass" (connect in parellel) the older supply caps eith newer and faster poly film caps. This will help make the older cap function more efficiently and will result a cleaner sound and faster dynamics.

Make sure you know how to do it. If unsure, please contact a local repairman.
Genesis168 (Threads | Answers | This Thread)

05-18-01 there was an article in glass audio, on how to build, i t ... Fletchj

05-19-01 One correction to your post, paul. nelson pass did not desi ... Sean