Table of Contents
Advertisement
Quick Links
Introduction
The Deer Creek Audio EQ901B Plus Series is a direct replacement for existing
BOSE 901 equalizers. The EQ901B Plus features dual output equalization (EQ)
curves, Normal and Reduced Bass, either of which will accommodate your 901
Series and can be selected based on room size and personal preference.
The EQ901B Plus installs in your tape monitor loop, pre-out/main-in loop or
between your preamp and power amp. The EQ901B Plus series is based on the
miniDSP 2x4 HD digital signal processor.
Page 1
EQ901B Plus Series
User Guide
EQ901B Plus User Guide - revised July 2024
1
2
2
2
2
3
4
5
5
6
7
7
7
deercreekaudio.com
Advertisement
Table of Contents
Related Manuals for Deer Creek Audio EQ901B Plus Series
Summary of Contents for Deer Creek Audio EQ901B Plus Series
-
Page 1: Table Of Contents
Series and can be selected based on room size and personal preference. The EQ901B Plus installs in your tape monitor loop, pre-out/main-in loop or between your preamp and power amp. The EQ901B Plus series is based on the miniDSP 2x4 HD digital signal processor. -
Page 2: Features
1. Features ● Precision engineered BOSE 901 Series equalization ● Dual equalization curves ○ Normal mode ○ Reduced Bass mode ● Ultra low noise and distortion ● Proven reliability 2. What’s Included ● EQ901B Plus equalizer ● Frequency equalization curves for your 901 Series ●... -
Page 3: Preamp / Power Amplifier Setup
3.2 Preamp / Power Amplifier Setup This example shows a typical connection between a preamp and power amp. Page 3 EQ901B Plus User Guide - revised July 2024 deercreekaudio.com... -
Page 4: Connecting A Power Subwoofer
If you have a receiver or integrated amplifier with a pre-out / main in loop, you can insert the EQ901B Plus as shown below. 3.3 Connecting a Power Subwoofer The two unused outputs connect to your subwoofer L and R line inputs. This setup requires that you be connected between a preamp and a power amp so the subwoofer(s) level will track with your Bose 901s. -
Page 5: Ac Power Connection
4. AC Power Connection The EQ901B Plus does not have a power switch and can be left powered on, as power consumption is very low. You also may power your EQ901B Plus from a switched outlet on your receiver. 5. Using the Dual Equalization Curves The EQ901B Plus is equipped with two equalization curves. -
Page 6: Setting Input Levels
6. Setting Input Levels The analog audio input levels are switchable between 2.0 Vrms and 4.0 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 4.0 Vrms setting. -
Page 7: Specifications
7. Specifications ● Distortion < 0.01% THD ● Maximum input voltage: 4.0 Vrms or 2.0 Vrms - jumper settable ● Dynamic range > 98dB ● Analog Devices: ADAU1701 Digital Signal Processor Engine ● Dimensions: 1.25” h x 4.25” w x 4.75” d 8. -
Page 8: Contact Deer Creek Audio
Contact Deer Creek Audio Please contact us with any questions or comments: staff@deercreekaudio.com 720.726.9272 Page 8 EQ901B Plus User Guide - revised July 2024 deercreekaudio.com...
Need help?
Do you have a question about the EQ901B Plus Series and is the answer not in the manual?
Questions and answers