Gayan Soyza
Active Member
Hi!
This very old pre amp circuit I use for my transistor amp. With my transistor power amp (300W) this circuit works well. No more trouble gave me. I tried making different kind of modern pre amps. But finally I thought my old circuit is quite ok. Output gain no need to adjust unlike other pre amps, can directly connect to the power amp input.
**broken link removed**
Now I want to use this circuit with my STK amp (STK 4191). But I’m not satisfied with the sound quality (may be the cheapy STK IC have poor quality).
The headache is to adjust the BASS. Even though I change the filter capacitors near the BASS control. The BASS is starting to increase (at a feeling level) in the end of the BASS volume level. (In original systems the BASS is working in it’s fully range)
What do you think about this preamp? Can you suggest me a quality preamp (with tone control) for the STK 4191(41XX) series?
(I hope my speaker system & input signal is quite ok. STK 4191 circuit is the original circuit as SANYO specifies in the data sheet)
Thanks a lot
This very old pre amp circuit I use for my transistor amp. With my transistor power amp (300W) this circuit works well. No more trouble gave me. I tried making different kind of modern pre amps. But finally I thought my old circuit is quite ok. Output gain no need to adjust unlike other pre amps, can directly connect to the power amp input.
**broken link removed**
Now I want to use this circuit with my STK amp (STK 4191). But I’m not satisfied with the sound quality (may be the cheapy STK IC have poor quality).
The headache is to adjust the BASS. Even though I change the filter capacitors near the BASS control. The BASS is starting to increase (at a feeling level) in the end of the BASS volume level. (In original systems the BASS is working in it’s fully range)
What do you think about this preamp? Can you suggest me a quality preamp (with tone control) for the STK 4191(41XX) series?
(I hope my speaker system & input signal is quite ok. STK 4191 circuit is the original circuit as SANYO specifies in the data sheet)
Thanks a lot