BSR EQ-3000
A 10-band stereo graphic equalizer with built-in spectrum analyzer and test tools
Overview
The BSR EQ-3000 is a 10-band stereo frequency equalizer designed for high-fidelity audio systems. It features an integrated LED spectrum analyzer for real-time frequency monitoring, along with onboard pink noise generation and support for a feedback microphone to assist in room calibration. Built as a dedicated audio tuning tool, it includes RCA line inputs and outputs as well as tape loop connections, allowing integration into receiver-based systems. One user noted using it in the tape monitor section of their receiver, highlighting its compatibility with standard stereo setups.
Specifications
| Product type | 10 Band Stereo Frequency Equaliser / Graphic Equalizer with Spectrum Analyzer |
| Channels | Stereo (Left & Right) |
| Display | LED spectrum analyzer |
| Inputs/Outputs | RCA line in/out, tape loop connections |
| Output Level | 1V (7V max) |
| Gain | ± 1dB |
| Signal to Noise Ratio | 100dB |
| Equalizer bands | 10-band |
Design
The EQ-3000 includes a real-time frequency analyzer and onboard pink noise generator, with support for an external feedback microphone to enable precise acoustic tuning. These features are integrated into the unit’s functionality for active room equalization.
Context
One user reported purchasing the BSR EQ-3000 shortly after its release and still using it in 2015, noting their background as an audio engineer. The unit has been recommended for use in the tape monitor path of stereo receivers, indicating its role as a high-quality add-on for precision audio adjustment.
Market
Resale prices for the BSR EQ-3000 have ranged from $40 on Craigslist to $229.99 plus shipping on commercial listings. A service manual is available for purchase, and there are user reports of seeking it for troubleshooting and repair.
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