EQ901B Plus III/IV Replacement Upgrade for BOSE 901 Series III and IV Equalizers

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$309.0
Color
Black
MPN
EQ901B Plus III/IV
Audio Outputs
RCA, Stereo L/R RCA
Number of Outputs
4
Brand
Deer Creek Audio
Type
Equalizer
Audio Inputs
Stereo L/R RCA
Number of Channels
2
Manufacturer Warranty
1 year
Number of Inputs
2
Model
EQ901B Plus III/IV
Features
Analog
Country/Region of Manufacture
United States
UPC
0860566000360
condition
New

EQ901B Plus III/IV Replacement Upgrade for BOSE 901 Series III and IV Equalizers


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The EQ901B Plus III/IV is the next generation of the popular EQ901 B, a high performance replacement for existing BOSE 901® Series equalizers.


The EQ901B Plus features dual output equalization curves, Normal and Reduced Bass, either of which will accommodate your 901 Series III/IV, depending on room size and personal preference.  Based on modern hardware, the unit increases dynamic range while reducing noise and distortion to achieve state-of-the-art performance.


As a drop-in replacement for existing OEM equalizers, the EQ901B Plus can be used in a tape monitor loop, between a preamp and a power amp, or with an A/V receiver and a separate power amp.


Features


  • The EQ901B Plus features two specifically designed equalization curves unique to each 901 Series

  • Precise 901 equalization is performed digitally in an Analog Devices 400MHz SHARC DSP processor with 24 bit resolution

  • Two tone modes (on outputs 1-2 and 3-4, respectively) 

  • Ultra low distortion 2.0 Vrms output driver stage 

  • Selectable input sensitivity of 2.0 Vrms or 4.0 Vrms


Specifications


  • Total Harmonic Distortion:  0.007% 10Hz to 22 kHz

  • Noise Floor:  -105 dB @ 700 Hz 

  • DSP Engine:  Analog Devices SHARC Digital Signal Processor

  • Audio Input / Output Connectivity:  Unbalanced Output, RCA 

  • Max Input Levels:  2.0 Vrms / 4.0 Vrms (jumper-selectable)

  • Max Output Levels:  2.0 Vrms

  • Input Impedance: 10 kΩ

  • Output Impedance:  560 Ω 

  • Dimensions:  1.25” h x 4.25” w x 4.75” d 

  • Power:  12V DC Single Supply, 2.1mm round plug, 2.5 Watts

  • EQ901B Plus platform base:  miniDSP 2x4 HD


Setting Equalization Curves


Selection of the equalization curve is generally based on your listening room size and personal preference.  The EQ901B Plus includes two curves:


  • Normal mode

  • Reduced Bass mode


Analog Input Level


The analog audio input levels are switchable between 2.0 Vrms and 4.0 Vrms to accommodate use with most equipment. The EQ901B Plus is shipped with the analog input level set to 2.0 Vrms. User-accessible jumpers are used to set the analog input sensitivity.


What’s Included


  • EQ901B Plus equalizer for BOSE 901 Series III/IV

  • Two precision engineered equalization curves 

  • External power supply


Support


  • 30-day 100% satisfaction guarantee

  • U.S. technical support through Deer Creek Audio

  • Installation guide and phone support

  • Deer Creek Audio is an authorized miniDSP dealer


Warranty Terms


This product is warranted to be free from defects in materials and workmanship for a period of one year from invoice. 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 the product manual. The customer provides return shipping to Deer Creek Audio. Deer Creek Audio is an authorized miniDSP dealer.