| Re: ART Cleanbox mod thread
Yeh, I had the gains all the way up (max clockwise) on my Mackie M1400 pro amp -- and could not get enough drive out of an old Panasonic HE70 AVR's sub line output. That is enough drive to calibrate the sub level to the right SPL as compared to the other channels using a SPL meter with an Avia or THX optimizer DVD. So for me the ART Cleanbox consumer level to pro level conversion gain was required. Depends on your AVR if your pro amp does not have a consumer line level (-10 dBV) input option.
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