3. Subwoofer Settings
To begin, your subwoofer should be set at mid-level gain, and the crossovers should be set at
the highest frequency or disabled. After you have the system up and running, adjust the
subwoofer level, phase and crossover to get the best response.
4. Tone Controls
The EQ901 PS has been calibrated to provide a neutral and natural sound without tone control
adjustments There are no external tone controls on the EQ901 PS; your audio / video receiver
or amplifier tone controls and the subwoofer controls are used to make fine adjustments. The
EQ901 PS includes a 48dB/Octave subsonic (rumble) filter.
5. Setting Input Levels
The analog audio input levels are switchable between 0.9 Vrms and 2.0 Vrms to accommodate
use with most preamplifiers / amplifiers. The EQ901 PS is shipped with the input level set to
0.9 Vrms. This EQ901 PS equalizer is set to install on your pre-amplifier output (input 1, 2) and
then connect to your power amplifier input (output 3, 4) and to your powered subwoofer(s)
(output 1 and/or 2).
This unit is configured with the 0.9 Vrms input setting. If you need to reduce the input
sensitivity / gain, you can change the input level jumpers to the 2.0 Vrms setting.
0.9 Vrms position.
The maximum input signal voltage allowed before clipping the A/D
converter is 0.9 Vrms. This position is typically used when the EQ901 PS is connected
between a pre-amplifier and a power-amplifier.
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EQ901 PS User Guide - Rev. 04012022 deercreekaudio.com
