BHI ParaPro EQ20-DSP - Audio Unit With Parametric Equalisation & DSP Noise Cancelling

The bhi ParaPro EQ20-DSP is 20W audio enhancement system that combines parametric equalisation with advanced DSP noise cancellation technology, specifically designed to improve audio clarity for individuals with hearing loss.

Powerful 10W per channel amplifier with ultra-low latency of 38ms, delivering clear and precise audio output through dual speaker channels

Advanced parametric equalisation system allowing customisable frequency adjustment from 100Hz to 10kHz, with ±10dB adjustment in both bass and treble bands

Sophisticated DSP noise cancellation technology capable of reducing background noise by up to 40dB while preserving speech clarity

Versatile connectivity options, including dual mono 3.5mm inputs, stereo input via 3.5mm jack, and multiple output options supporting both 4 and 8-ohm passive speakers

Compact ABS case design measuring 145mm x 75mm x 100mm, with user-friendly controls for power, volume, and equalisation adjustments

Greatly improved audio for those with hearing loss

The ParaPro EQ20-DSP offers professional-grade sound processing in a compact, user-friendly package. Its parametric equalisation system provides unprecedented control over audio frequencies, allowing users to precisely target and adjust specific frequency ranges that match their hearing needs. This level of customisation makes it particularly valuable for individuals with hearing loss, who can now fine-tune their audio experience to their exact preferences.

The integration of our DSP noise cancellation technology offers high-quality audio amplification. The system processes audio across the entire bandwidth, effectively separating speech from background noise while maintaining audio fidelity. Operating on 12V DC power, the unit offers excellent efficiency through its Class-D amplifier design, eliminating the need for bulky heat sinks while delivering consistent, clear audio output.

Who is the EQ20-DSP for?

Amateur radio

Shortwave listening

Commercial radio base stations

General audio

Mono or stereo inputs

You can connect one or two mono inputs to the CH1 and CH2 input sockets or a single stereo signal from an amateur radio transceiver, SDR radio, shortwave receiver, MP3 player etc, via the 3.5mm stereo input sockets.

Choice of outputs and connections

Connect one or two passive speakers to the left and right “Speaker Outputs” using the 4mm banana plugs or phono to 3.5mm mono adapters supplied. Use the “Source Select” button on the front panel to select the desired audio. 

Easy-to-use controls

The EQ20-DSP is housed in a quality compact ABS case. There are controls for Power/Volume along with two parametric equaliser channels labelled Bass and Treble, with the Bass centre frequency being adjustable from 100Hz to 1kHz and Treble covering 1kHz to 10kHz. Used together these controls provide two bands of ±10dB adjustment from 100Hz through to10kHz. The bhi noise filter control allows you to adjust the filter level from off (DSP bypassed) to 40dB of noise cancellation.

Benefits of parametric equalisation

Unlike standard tone control, graphic equalisation and preset EQ settings, a parametric equaliser allows you to select the precise frequency you want to adjust.  This enables you to boost or cut the selected frequency, giving you much greater flexibility and accuracy in setting the audio to suit your hearing.  This is especially beneficial to people with hearing loss.