2. amps-preamps
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SET owners, need help with Rectifier tube

I am looking to replace the rectifier tubes in my Coincident Frankenstein monoblocks. The current tube which came with the amps is a GZ4P. I have learned the P designation indicates a Chinese tube.

Does anyone have experience with a Russian substitute which is a 5U4C?

Mullard has a substitute which is a GZ30 which go for $50.00 each. Is it possible these tubes can effect a sonic improvement?

Any input would be much appreciated. Thanks.
montepilot

Showing 1 response by cyclonicman

cyclonicman
693 posts
 
Try contacting Kevin Deal at Upscale audio. He is very respected and has extensive knowledgable of tubes. He will definitely be able to help you.

http://www.upscaleaudio.com/view_category.asp?cat=48
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