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I'm not sure exactly how to phrase my question, so I'll elaborate a little: I'm currently using 2 Audio Research D70-II amps as monoblocks, each stuffed with Ei KT90 type II tubes.Each amp is being used to drive only the midrange driver of my Spendors, in a tri-amped system. XO points are 700hz and 3Khz. I have the LF amps and HF amps' outputs balanced relative to the ARC D70/KT90s.
I'm thinking that I'm under utilizing the Ei KT90s, and that I should switch back to the SED 6550c, and save the Eis, (since they are made from unobtanium). However, if I do so, will the gain from the ARC D70s change with the change in output tube type, and will I then need to rebalance the gain from the other amps?
Thanks, Samir.
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Topic - Does changing tube type change the output or gain of a power amp? - Gofast 14:45:06 02/05/07 (3)
- Re: Does changing tube type change the output or gain of a power amp? - beermanpete@socal.rr.com 21:59:42 02/06/07 (1)
- Thanks very much - Gofast 08:28:31 02/07/07 (0)
- Re: Yes* - Ron Oehlert 12:43:30 02/06/07 (0)