2. amps-preamps
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Upgrade capacitors in tube amplifier?

I have upgraded crossovers with very good results.  I now have a "very good" IMO chinese tube amplifier that can probably be improved with a couple of capacitor upgrades.  

I don't have a schematic, but I have a picture and I expect some of you knowledgeable folks can point me to/confirm the ones to change.  My thought is to change the two large silver ones first and then maybe the four smaller silver ones (on the circuit boards). 

Would probably replace with something like Jantzen Superior Z-Cap or comparable and go with a higher voltage if space permits.  

https://imgbox.com/rtBfoyg0

Thoughts?


chinook9

Showing 1 response by calieng

calieng
144 posts
 
I agree - don't mess with the circuit if it sounds good.  Their branded tubes are decent and I did not hear any significant difference with other tubes but the tube construction is a little better with Tung Sol or some others. 

The biggest upgrade you can do is buy the R-300B model. It is amazing! I also have the R8 with KT88 tubes and the R-300B is significantly more organic sounding. I have not owned the model you have but likely is similar in tone to the R8. I am running the R-300B thru Klipsch Forte III....simply amazing match.
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