• EQ901B-I/II - Replacement Upgrade for BOSE 901 I II Equalizers


    Same Business Day Shipping - FedEx Express - Free US -See Global Rates in Cart*

    The EQ901B-I/II is a direct replacement for existing BOSE 901 ® Series I/II equalizers providing improved clarity, imaging and range. The EQ901B-I/II features dual equalization curves, normal and enhanced, which will accommodate your Series I/II depending on personal preference.

    The EQ901B-I/II installs in your tape monitor loop, pre-out/pre-in loop, or between your preamp and power amp. Switchable input levels between 0.9 Vrms and 2 Vrms accommodates use with most preamplifiers, amplifiers, or receivers.

    Features Summary:

    Precision Engineered BOSE 901 ® Series I/II Equalization

    Dual equalization curves, normal and enhanced
    Ultra Low Noise & Proven Reliability
    The EQ901B-I/II is based on the miniDSP 2x4 digital signal processor

    What’s Included:

    EQ901B-I/II Equalizer
    Precision frequency equalization curves optimized for BOSE 901 ® Series I/II
    Regulated US power supply (international optional)

    User Guide

    Tone Controls:

    The EQ901B-I/II has been calibrated to provide a neutral and natural sound without tone control adjustments
    There are no external tone controls on the EQ901B-I/II, your audio/video receiver or amplifier tone controls are used to make fine adjustments

    The EQ901B-I/II includes a 48dB/Octave subsonic (rumble) filter


    Distortion <1% THD at maximum input
    Dynamic range: un-weighted >98dB
    Analog Devices ADAU1701 digital signal processor (DSP) Engine
    Dimensions: 26h x 107w x 94d mm


    One year full replacement warranty
    30 day 100% satisfaction guarantee

    Installation guide and phone support
    Deer Creek Audio is an authorized miniDSP dealer

    Recommended accessories:

    Global precision regulated AC/DC power supply for :Europe, U.K., Australia and others, plug types: B, C, G, I
    RCA Cables - Two (2) Pairs, Excellent quality, flexibility, Shielded, High Fidelity


    * Orders received by 11 AM MT are shipped same business day. US Domestic orders ship free, Canadian FedEx is $24.95, Global FedEx is $39.95


    EQ901B-I/II User Guide

    Connecting your EQ901 to an Audio Video Receiver (AVR)