less stereo separtaion than the MPX circuit is capable of.

Posted by Timbo in Oz (A) on August 1, 2012 at 15:52:16

In Reply to: RE: The MPX decoder? posted by Crazy Dave on August 1, 2012 at 07:50:12:

IME a good way to tell is on an acoustic live broadcast miked in simple stereo, and if your T80 gives more hall sound then the new one needs adjusting. See * as well.

There's probably a separation adjustment.

Better caps will sound better, if it's getting close to 20yrs old the electros may need replacement. Bypassing the last new/still good electro PSU cap, at least, won't hurt. IME the higher the PSU storage, without stressing the PT, the better the sound. If the rails are regulated check that chip's operation, too.

The audio output stage, even if it uses a stereo chip, is worth tweaking, because the sound stands and falls there. Depends on the chip if to upgrade it. NB circuits can get a lot more out of 'underrated by 'philes chips'. Running it a bit warmer - more Class A - for example.

One definite benefit here can be getting good deep bass, given Neff's point about light bass. IF there's a 50Hz? (or lower) high-pass filter - wherever it is - ditch it. And, use a bigger (more uf) good-sounding coupling cap than is in there, in any case. * Deep bass is a factor in hall-sound.

IME of very good FM sound quality the bass can be a lot deeper than 50Hz.

My overall point is that you got the thing for so little and its potential is quite high. :-)!

How is it sounding already?

Warmest

Tim Bailey

Skeptical Measurer & Audio Scrounger

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Follow Ups Full Thread

Topic - Possible sleeper tuner found! B&K TS108! - Crazy Dave 09:52:09 07/30/12 (19)

RE: Possible sleeper tuner found! B&K TS108! - DanV 09:55:59 04/16/20 (0)

B&K TS108 - Weekend listening... - Crazy Dave 10:15:01 08/07/12 (2)

B&K TS108 tuner $50 no bids - openmind 08:40:58 09/14/12 (1)

RE: B&K TS108 tuner $50 no bids - openmind 09:37:00 09/20/12 (0)

B&K TS108: First flogging! - Crazy Dave 08:48:42 08/03/12 (4)

I think you mean... - Neil49 10:03:21 08/05/12 (1)

RE: I think you mean... - Crazy Dave 13:16:47 08/06/12 (0)

RE: B&K TS108: First flogging! - Neff 14:24:14 08/03/12 (1)

RE: B&K TS108: First flogging! - Crazy Dave 15:08:57 08/03/12 (0)

Don't hold me to this - 1973shovel 04:44:52 07/31/12 (3)

RE: Don't hold me to this - Crazy Dave 07:44:30 07/31/12 (2)

RE: Don't hold me to this - Neff 10:58:40 07/31/12 (1)

RE: Don't hold me to this - Crazy Dave 07:46:51 08/01/12 (0)

Yes, a sleeper. Still and all, a good antenna won't hurt. ;-)! - Timbo in Oz 14:23:54 07/30/12 (5)

RE: Yes, a sleeper. Still and all, a good antenna won't hurt. ;-)! - Crazy Dave 08:33:55 07/31/12 (4)

The MPX decoder? - Timbo in Oz 15:36:10 07/31/12 (3)

RE: The MPX decoder? - Crazy Dave 07:50:12 08/01/12 (2)

less stereo separtaion than the MPX circuit is capable of. - Timbo in Oz 15:52:16 08/01/12 (1)

RE: less stereo separtaion than the MPX circuit is capable of. - Crazy Dave 08:20:07 08/02/12 (0)

Follow Ups

less stereo separtaion than the MPX circuit is capable of. - Timbo in Oz 15:52:16 08/01/12 (1)

RE: less stereo separtaion than the MPX circuit is capable of. - Crazy Dave 08:20:07 08/02/12 (0)

less stereo separtaion than the MPX circuit is capable of.

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