Many AV installers have multiple systems they run into a single amplifier, using a single, integrated control system for room volume. The amp is often one of the longer-lasting pieces of room equipment, and once set, most AV techs know not to “mess” with it.
When using Clearone professional audio DSPs, AV techs almost always connect to an existing amplifier. However, many amps that were in use with legacy equipment or non-conference applications are turned up far too high for use with a DSP and conference audio.
This isn’t because the volume in the room is too high. In fact, it will often sound great to the installers. It’s actually because the DSP functions best when the signal sent to the amp is at 0 dB on average. It’s tempting on new installs to turn down channels in the DSP to conform to an existing amp that’s set at 50% or higher, but this will degrade the DSP’s acoustic echo cancellation and cause choppy RX audio from the conference.
Always calibrate a DSP to 0 dB for all inputs, and outputs, and tune the amp down accordingly. It’s not uncommon for an amp to be at 30% or lower when used with an AEC-enabled system like the CONVERGE® Pro 2.
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