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Emission Labs 300B vs Shuguang Black Treasure

Hi All,
I want to upgrade the 300B tubes on my Wavac EC-300B amp. At the moment I am still using the stock tubes which are a pair of standard Shuguang 300B-98. I did try out a Shuguang trasure tube some time back. It made for an over all richer sounding tones and slightly lower noise floor. However I am more intrigued by the emission Labs standard 300B solid plate tubes. They seem to be built better and claim to have lower distortion too. Can some one help me with the sonic signature of the Emission labs 300b vs Shuguang treasure ? I also thought of considering the Sophia Mesh or Carbon tubes but I am a bit skeptical about their reliability.
pani

Showing 2 responses by brf

brf
1,715 posts
 
With respect to KR 300's, I would only buy brand new and from an authorized dealer that offers a warrantee.

KR had reliability issues in the past in which KR stopped offering warrantee replacements, therefore, forcing some tube amp manufacture to look for another high quality 300B tubes for their amps. For the asking price of a pair of new KR 300, why bother when you can get a pair of Emission Labs.
brf
1,715 posts
 
The problem lies in the fact that there are a lot of NOS KR tubes around today being sold by "unauthorized" KR dealers who are "actively" misrepresenting themselves as USA distributors. If you google KR tubes USA you will get the USA KR distributor but when you go to KR's main website it makes no mention of said USA distributor and directs you to another USA site.

KR has a lot of rogue dealers who offer no warrantee support. My buddy bought a pair of ballon 300b which ended up have some loose internals and was not offered a replacement. He is so worried about a short, the tubes remain in a box.

I wouldn't recommend KR tubes based on my experience and knowledge. If one does decide to go with KR tubes, I would contact KR in the Czech for an authorized reseller. My 2 cents.
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