Optimum levels of L1 pre gain and A1.5 amp gain related to source output and speaker efficiency?

engadin

Well-Known Member
Apr 23, 2022
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I own
- t+a SD 3100 hv DAC, 5Veff at 40 or 50 Ohm (differing numbers in t+a literature…) output at XLR
- CH P L1, X1
- CH P A1.5
- TAD me-1 speakers 85dB efficiency

Should I change gain settings at L1, A1.5 or just continue listening happily ever after?
I do love what these components do but was truly astonished what switching off unused inputs or INPUT dc calibration did, so … ocd me wonders.

Cheers & thx for your input
Ulrich
 

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