BHI Dual In-Line DSP Noise Cancelling Module

The bhi Dual In-Line is a dual-channel, DSP noise cancelling in-line module that removes unwanted noise and interference from audio signals, delivering crystal-clear speech for radio communications and audio equipment.

Fits between your radio and extension speaker
Advanced DSP noise cancellation technology providing up to 40dB of noise reduction across 8 adjustable filter levels
Multiple connectivity options, including dual mono/stereo inputs and three output types: 7W mono speaker, stereo line-level, and headphone outputs
Built-in amplification system with 7W mono speaker output and dedicated 0.5W + 0.5W headphone amplifier
Simple control interface featuring rotary knobs for input/output levels and filter adjustment
Durable construction using impact-resistant ABS plastic housing, measuring 165mm x 78mm x 50mm
Powered by 12V DC with low power consumption (800mA nominal, 2.5A max)
Ultra-low latency of 38ms for real-time audio processing

Specification

Operating voltage: 10 to 16v d.c. (800mA nom, 2.5A max)
Dimensions: L165mm x W78mm x D50mm, weight 0.38Kg

Audio Input
Input – Stereo (Audio 1 – Plug Tip, Audio 2 – Plug Ring)
8 Ohms at 2Watts
10K Ohm at 600mV p-p

Audio Outputs
Headphones/small speakers – 0.5 + 0.5 Watts into 8 Ohms
Speaker – Greater than 6 Watts into 8 Ohms
Line - Stereo 600 Ohms at up to 0dBV
Ultra-low latency of 38mS

Connections
Audio Inputs - 3.5mm Stereo Jack Socket
Line and Headphone Outputs – 3.5mm Stereo Jack socket
Mono Speaker output – 3.5mm Mono Jack socket
Power 2.1mm Coaxial Power Jack centre Pin = +Ve

Controls
Audio Input Level
Combine/Separate signal switch
DSP Filter Levels 1 – 8
Noise suppression: 8 to 40dB
Tone suppression: Up to 65dB
3 positions - Off/On/DSP Noise Cancelling On
Audio Out Level (Mono speaker and headphones - 3.5mm Mono connection only )
Line Out Level

Indicators
Power ON
Noise Cancellation ON
Channel 1 Overload
Channel 2 Overload