EQ901 B Plus

In stock
Ships same business day - FedEx 2Day®

The EQ901B Plus is the next generation of the popular EQ901 B, a high performance replacement for existing BOSE 901® Series I/II, III/IV or V/VI equalizers (select your series when ordering).

The EQ901B Plus features dual output equalization curves, Normal and Reduced Bass, either of which will accommodate your 901 Series 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 Series:   I/II, III/IV or V/VI
• 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 I/II, III/IV or V/VI 
• 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.

Shipping

Orders received by 2 PM mountain time are shipped the same business day. U.S. domestic orders ship FedEx 2Day® for $12.95. Orders shipping to Canada are $24.95.  For more details check out the FAQs on Buying from Deer Creek Audio.