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Bias for GEC KT-88 tubes

85.140.92.160

Question for Cary SLI-80 users: I recently replaced the Mullard EL-34 with GEC KT-88 tubes. The liked the sound with the EL-34 tubes but I just wanted to see if I get more dynamics and sounstage with the GEC KT-88 tubes when listening to orchestral works.

Well, I set the bias at 0.75 mA as recommended by Cary, but what I heard, among other things, excessive sibilance and lean bass in a Nat King Cole CD, and the "magic" of EL-34's disappeared, though the soundstage became wider.

Can the lowering of the bias correct this phenomenon?


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Topic - Bias for GEC KT-88 tubes - tubers 02:38:35 05/06/07 (11)

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