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In Reply to: RE: GUIGUANG 300B have good bass ? posted by Aldovan on November 28, 2014 at 19:10:53
I would be taking a hard look at the amplifier you have in terms of the bass quality you're getting. A small output transformer with insufficient inductance will cause this problem on its own.
As for the Guiguang tubes, one that I had made strange noises right out of the box. After about 20 hours of use, heat from the tube cracked the black base. After about 100 hours of use, that tube failed.
The other tube in the pair seems to be holding up OK, and the newer ones look to use ceramic bases.
Follow Ups:
The noise is from spider circuit prototype with many lost wires.
With the Shuguang or other 300B the noise is the same, sorry.
I'm not sure I understand what you're saying.
The circuit has noise because it is messy, has no shield.
The noise occur with any 300B tube.
Which circuit?If you're speaking of the ones I'm using, which are quiet with the other Guiguang tube and the other 4 pairs of 300B's that I have, then I'm really lost by your replies.
If you're saying that you have a noisy 300B circuit, I'm also perplexed.
Edits: 11/30/14
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