Hi all!
I have changed the setup slightly and i am wondering if it it possible that such a slight change makes a substantial listening quality difference. I had to use the volume attenuator of the Behringer for the unsymmetrical Cinch inputs because of the very high sensitivity level. Without a precise gain level measurement with measurement equipment it is nearly impossible to get the correct attenuation levels for the right and left channel woofer and tweeter SPL levels with the no good A/B channel Behringer A800 level attenuator stuff. I have tried than to use RCA output to XLR input adapter cable because of this here, from the specs:
Input sensitivity @ level control max XLR: +4 dBu / RCA: -10 dBV
With the adapter cable i can turn all knobs to maximum, easy to use, no level measurement to match the four channels required. Now i have the impression that the sound quality has improved substantially but is it possible? Two ideas of my own:
1) Behringer use bad potentiometer, no budget for ALPS potentiometer for this amplifier - may be it would be far better to throw it out and use fix level with two metal film 0,1 % tolerance resistors.
2) Behringer use no good circuit design for the unsymmetrical input and a better one for the symmetrical input.
Comments are very appreciated, thanks in advance!
- Stefano
I have changed the setup slightly and i am wondering if it it possible that such a slight change makes a substantial listening quality difference. I had to use the volume attenuator of the Behringer for the unsymmetrical Cinch inputs because of the very high sensitivity level. Without a precise gain level measurement with measurement equipment it is nearly impossible to get the correct attenuation levels for the right and left channel woofer and tweeter SPL levels with the no good A/B channel Behringer A800 level attenuator stuff. I have tried than to use RCA output to XLR input adapter cable because of this here, from the specs:
Input sensitivity @ level control max XLR: +4 dBu / RCA: -10 dBV
With the adapter cable i can turn all knobs to maximum, easy to use, no level measurement to match the four channels required. Now i have the impression that the sound quality has improved substantially but is it possible? Two ideas of my own:
1) Behringer use bad potentiometer, no budget for ALPS potentiometer for this amplifier - may be it would be far better to throw it out and use fix level with two metal film 0,1 % tolerance resistors.
2) Behringer use no good circuit design for the unsymmetrical input and a better one for the symmetrical input.
Comments are very appreciated, thanks in advance!
- Stefano
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