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In Reply to: RE: "Subterranean" Bass and SETs...... posted by Paul Joppa on January 29, 2015 at 19:54:08
Paul,
Thanks for the post.
So, in layman's terms, are you suggesting that an 8.5 watt 300B SET amp simply can't handle certain kinds of music in the digital realm?
If that's not what you mean, can you clarify your remark in non-technical terms?
Thanks again.
Follow Ups:
"So, in layman's terms, are you suggesting that an 8.5 watt 300B SET amp simply can't handle certain kinds of music in the digital realm?"
I'm not sure if an 8-watt 300B SET amp will have enough power to drive 92-dB efficient speakers to satisfying volumes with music containing lot of deep bass energy. (The same amp might be just fine w deep bass with > 98 dB efficient speakers.)
By the way, I think Paul's suggestion of using a high-pass filter at the input is a good idea..... If the speaker doesn't have extended bass response, you won't miss much down there.
Sorry for the lack of clarity. I was only addressing the concern about the apparent difference in levels - with well-recorded material it should be small in practice.
I don't see enough information in this thread yet to know what the problem is with the digital material. A number of good possibilities have been suggested, and I think the "overloaded first stage" theory is unlikely if that stage is operating correctly - which you are already engaged in checking, I think.
If it is very deep bass overloading, either deliberately encoded in the digital or caused by an noise/instability/error in the digital side, then a simple high-pass filter at the amp input would be a possible test.
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