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3.5 AC Power Connection

The EQ901 B does not have a power switch and can be left powered on, as power
consumption is very low. You also may power your EQ901 B from a switched outlet on your
receiver.

4. 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 or receivers. If you are experiencing excessive signal
level or distortion, you may need to switch the unit to the 2.0 Vrms setting.

The EQ901 B model is shipped with the input levels preset to 0.9 Vrms.

0.9 Vrms position.

With this setting, the maximum input signal voltage allowed before clipping

the A/D convertor is 0.9 Vrms. This position is typically used when the EQ901 B is connected
between a preamp and a power amplifier.

2.0 Vrms position.

With this setting, the maximum input signal voltage allowed before clipping

the A/D convertor is 2.0 Vrms. This position is typically used when the EQ901 B is connected
in a tape recording loop (REC/in to PB/out).

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EQ901 B Series User Guide - Rev. 04012022 deercreekaudio.com

Summary of Contents for EQ901 B Series

Page 1: ...io EQ901 B Series is a direct replacement for existing BOSE 901 equalizers The EQ901 B features dual output equalization EQ curves Normal and Enhanced either of which will accommodate your 901 Series and can be selected based on personal preference See below for instructions on using this feature The EQ901 B installs in your tape monitor loop pre out pre in loop or between your preamp and power am...

Page 2: ...equalization curves for your 901 Series Regulated power supply 3 Typical Installation Examples Analog audio input and output connections are made directly to the RCA input and output jacks For RCA connections 1 is Left L and 2 is Right R When making these connections make sure to power off the equipment being connected 3 1 Tape Monitor Loop Setup Page 2 EQ901 B Series User Guide Rev 04012022 deerc...

Page 3: ...ple shows a typical connection between a preamp and power amp If you have a receiver or integrated amplifier with a pre out main in loop you can insert the EQ901 B as shown below Page 3 EQ901 B Series User Guide Rev 04012022 deercreekaudio com ...

Page 4: ...bwoofer The two unused outputs connect to your subwoofer L and R line inputs The subwoofer controls can then be adjusted to your preference 3 4 Typical Setup I O Page 4 EQ901 B Series User Guide Rev 04012022 deercreekaudio com ...

Page 5: ...need to switch the unit to the 2 0 Vrms setting The EQ901 B model is shipped with the input levels preset to 0 9 Vrms 0 9 Vrms position With this setting the maximum input signal voltage allowed before clipping the A D convertor is 0 9 Vrms This position is typically used when the EQ901 B is connected between a preamp and a power amplifier 2 0 Vrms position With this setting the maximum input sign...

Page 6: ...onitor loops you can connect the EQ901 B outputs 1 and 2 to tape playback inputs 1 and outputs 3 and 4 to tape playback inputs 2 Then you will be able to switch easily between the two equalizer curves If your configuration is a pre amplifier out main amplifier in setup you ll need to manually move the cables from outputs 1 and 2 to outputs 3 and 4 Be sure to power off all equipment before making t...

Page 7: ...ted to be free from defects in materials and workmanship for a period of one year from the invoice date Warranty does not cover failure of the product due to incorrect connection or installation improper or undocumented use unauthorized servicing modification or alteration of the unit in any way or any usage outside of that recommended in this manual Return shipping is the responsibility of the cu...

Page 8: ...Contact Deer Creek Audio Please contact us with any questions or comments staff deercreekaudio com 720 726 9272 Page 8 EQ901 B Series User Guide Rev 04012022 deercreekaudio com ...

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