First a little bit of context, I've already built the SSE and since doing that my main speakers I liked listening to on tube power were sold (la scalas) and were replaced with jubescalas, since they require active crossover I now need four channels of amplification.
Few questions:
-Would the Edcor XPWR222 be up to the task of running a pair of SSE boards? For reference it's rated at 350mA 375-0-375, 6A 6.3V and 6A 5V. I feel like the 6.3V filament winding won't be able to handle two boards but I want to be told that instinct is correct.
-Assuming the Edcor I have won't be up to the challenge, is there anything out there that would be? The One Electron BFT-1B looks promising but will the secondary at 385-0-385 be too high? (For reference my mains voltage runs a pretty consistent 119V)
-Will there be any fundamental issues introduced by running a pair of SSE boards from one PT? Should I be considering dual PTs?
-If I'm running these purely as power amplifiers with no need for volume control do I just omit that and run the inputs directly into the board?
-My outputs are balanced, has anyone done a balanced input mod on the SSE? Is there any value to that besides the "Shlick-snap" satisfaction of XLR connections at both ends?
-I currently have 15W GXSE edcor OPTs I will be re-using for the high frequency portion of this 4 channel thing. They'll be powering a pair of B&C de75p compression drivers that are 8 ohm nominal and 108db sensitivity. For the low frequency pair of channels should I go with the larger Edcors? The frequency response isn't that important as the horn bins can barely touch 50Hz but they are around 3dB less sensitive so will be getting more power day to day.
A few notes, I'll be tube rectifying and my output tubes right now are a pair of Shuguang Black Treasure KT88's so I'll probably grab another pair of those.
Thanks for any tips or guidance, and yes most of the desire to make this in one unit is the visual spectacle of 8 warm tubes and a small city of transformers, chokes and caps.
Few questions:
-Would the Edcor XPWR222 be up to the task of running a pair of SSE boards? For reference it's rated at 350mA 375-0-375, 6A 6.3V and 6A 5V. I feel like the 6.3V filament winding won't be able to handle two boards but I want to be told that instinct is correct.
-Assuming the Edcor I have won't be up to the challenge, is there anything out there that would be? The One Electron BFT-1B looks promising but will the secondary at 385-0-385 be too high? (For reference my mains voltage runs a pretty consistent 119V)
-Will there be any fundamental issues introduced by running a pair of SSE boards from one PT? Should I be considering dual PTs?
-If I'm running these purely as power amplifiers with no need for volume control do I just omit that and run the inputs directly into the board?
-My outputs are balanced, has anyone done a balanced input mod on the SSE? Is there any value to that besides the "Shlick-snap" satisfaction of XLR connections at both ends?
-I currently have 15W GXSE edcor OPTs I will be re-using for the high frequency portion of this 4 channel thing. They'll be powering a pair of B&C de75p compression drivers that are 8 ohm nominal and 108db sensitivity. For the low frequency pair of channels should I go with the larger Edcors? The frequency response isn't that important as the horn bins can barely touch 50Hz but they are around 3dB less sensitive so will be getting more power day to day.
A few notes, I'll be tube rectifying and my output tubes right now are a pair of Shuguang Black Treasure KT88's so I'll probably grab another pair of those.
Thanks for any tips or guidance, and yes most of the desire to make this in one unit is the visual spectacle of 8 warm tubes and a small city of transformers, chokes and caps.
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