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#1 |
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diyAudio Member
Join Date: Jan 2003
Location: Zurich
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I've got way too much gain n my system and would like to take some out (maybe 14dB). I figure the most effective way to do that would be to decrease the gain on the Aleph 3. Can anyone tell me how to do this?
thanks a lot, John |
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#2 |
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diyAudio Member
Join Date: Sep 2002
Location: North of Boston
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Change the ratio between r104 (10K) and r102(1k). The gain is 20*Log(r104/r102) or 20 in this case.
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MikeW |
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#3 |
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Account Disabled
Join Date: Aug 2002
Location: Near to the Pacific Ocean
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Reduction of gain by increasing feedback might affect the original sound.
Another idea could be installing a voltage divider (attenuator) somewhere between pre output and Aleph 3 input . . . ? |
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#4 | |
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diyAudio Member
Join Date: Jun 2003
Location: Wroclaw
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Quote:
I don't know how efficent are your speakers (maybe 105db), but Aleph 3 itself doesn't have high gain. I think it is lower than most average power amps. Try to lower your gain in your pramplifier at first (if it offers this oportunity), but if you can't do that, use the resistors L-Pad at the input of your preamplifier calculated for desired loss. Bartek |
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#5 |
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diyAudio Member
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Build a Balanced Zen Line Stage (BZLS, BOSOZ).
It has a wonderful array of adjustments
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