Shape the audio to suit your ears!
Professional Grade Audio Equalisation for Amateur Radio
The new bhi ParaPro EQ20B-DSP features a 20W modular audio power amplifier with a parametric equaliser and bhi’s latest dual Channel DSP Noise Cancelling technology. The parametric equaliser allows any specific part of the frequency range to be selected and adjusted in strength enabling the user to shape the audio to suit their ears. The EQ20B-DSP unit utilises the latest bhi dual channel DSP noise cancelling technology, which can handle mono or stereo signals and has an improved noise suppression algorithm that gives improved speech quality to the listener. The processed speech is clearer and more intelligible even with weak signals and at higher noise levels. Bluetooth connectivity enables input from a Bluetooth source which effectively turns the EQ20B-DSP into a Bluetooth speaker.
The EQ20B-DSP unit is housed in a quality compact ABS case measuring. It is easy to integrate with a number of different connection options available. Features include separate mono and stereo inputs for line level, headphone level and speaker level signals. The LED will flash if the input is overloaded. The outputs comprise a set of banana sockets for the left and right speakers plus a pair of RCA phono jacks for the speaker outputs.
Important Note: The Class D bridge output has a direct DC connection to the amplifier circuitry (i.e. no isolating capacitors) so you must not parallel the speaker outputs or ground any of the connections. Stereo headphones can be connected from the front of the unit.
The EQ20B-DSP has two parametric channels labelled Bass and Treble with the Bass centre frequency being adjustable from 100Hz to 1kHz, whilst the Treble covers 1kHz to 10kHz. Used together, these controls provide two bands of ±10dB adjustment from 100Hz through to 10kHz. The bhi DSP Noise Filter in the is continuously variable from off (DSP bypassed) up to 40dB of noise cancellation.
Parametric Equalisation: A parametric equaliser allows any specific part of the frequency range to be selected and adjusted in strength. The user is able to adjust these parameters to determine exactly how the equalization is applied. The most important feature of a parametric equaliser is that it allows you to select which frequency to adjust. For example, instead of having a simple mid-range adjustment as in a standard graphic equaliser which boosts or reduces a pre-set range of frequencies, you can specify exactly which frequency to boost or reduce. This gives you greater flexibility and accuracy to set the audio to suit your own hearing.
- Parametric equaliser lets you shape the audio to suit your hearing
- 10W audio per channel
- Class-D type audio amplifier for power efficiency and eliminate the need for bulky heatsinking
- Use with mono, stereo or two separate audio channel inputs
- 4mm banana plug or RCA phono plug audio output connections
- bhi dual channel DSP noise cancelling technology
- 3.5mm stereo headphone output (Class AB)
- Easy to use controls for all functions
- Signal input overload feature
- 12V DC operation (2A)
- User manual and accessory kit supplied
- 3.5mm mono and 3.5mm stereo inputs
- Use with your own passive speaker/speakers
- Dims: 145mm (W) x 75mm (H) X 100mm (D)
- Benefits those with some form of hearing loss or impairment
- 12V DC 2A 24W International Power Supply available - see below
Testimonial "Using the new EQ20-DSP noise cancelling and parametric equaliser for a few days I have found this to be an excellent purchase. I am now able to receive stations down in my local noise level which was not possible before due to high solar panel and other local electronic noise. Using the fixed line level output from my ICOM IC7600 and IC9100 transceivers thus bypassing the internal audio stages gives the best results.( 4.7K 300mV rms )this source is just below the clipping level, the audio having little or no distortion with a frequency range to suit me. Many thanks to Kelly and Graham for the very fast and efficient service." Best Wishes David G2FT ex G3MWV.