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Deer Creek Audio EQ901 PS User Manual

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Introduction

The EQ901 PS is a direct replacement for existing BOSE 901 equalizers for users with
pre-power amplifiers or pre-out / power-in ports who wish to add a powered subwoofer to their
system. Switchable input levels between 0.9 Vrms and 2.0 Vrms accommodates use with most
preamplifiers/amplifiers. The EQ901 PS is based on the miniDSP 2x4 digital signal processor.
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EQ901 PS User Guide
EQ901 PS User Guide - Rev. 04012022 deercreekaudio.com
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Summary of Contents for Deer Creek Audio EQ901 PS

  • Page 1 Contact Deer Creek Audio Introduction The EQ901 PS is a direct replacement for existing BOSE 901 equalizers for users with pre-power amplifiers or pre-out / power-in ports who wish to add a powered subwoofer to their system. Switchable input levels between 0.9 Vrms and 2.0 Vrms accommodates use with most preamplifiers/amplifiers.
  • Page 2 1. Features ● EQ901 PS Equalizer for Series I/II, III/IV or V/VI (series selected at order) ● Precision frequency equalization optimized for each BOSE 901 Series ● Active Subwoofer Crossover ● Single or dual monaural subwoofer outputs ● Regulated U.S. power supply included 2.
  • Page 3 If you have a receiver or integrated amplifier with a pre-out / main in loop, you can insert the EQ901B as shown below. The EQ901 PS does not have a power switch. We recommend that it be left powered on as power consumption is very low. When you power the EQ901 PS off and on, ensure that you turn the connected equipment off before disconnecting power from the EQ901 PS.
  • Page 4 / 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).
  • Page 5 2.0 Vrms position. The maximum input signal voltage allowed before clipping the A/D converter is 2.0 Vrms. This position is typically used when the EQ901 PS is connected in a tape recording loop (REC/in to PB/out). 6. Accessing the Input Level Switches 7.
  • Page 6 Return shipping is the responsibility of the customer. Page 6 EQ901 PS User Guide - Rev. 04012022 deercreekaudio.com...
  • Page 7 (This page left intentionally blank.) Page 7 EQ901 PS User Guide - Rev. 04012022 deercreekaudio.com...
  • Page 8 Contact Deer Creek Audio Please contact us with any questions or comments: staff@deercreekaudio.com 720.726.9272 deercreekaudio.com/p/eq901usb--powered-sub Page 8 EQ901 PS User Guide - Rev. 04012022 deercreekaudio.com...

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