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Signal Emotion HD-8 Digital Signal Processor with iOS & Android App

Signal Emotion HD-8 Processor

The HD-8 is a versatile car audio processor designed to upgrade any factory audio system.


High Performance and High Fidelity

With 6 channels of in-built amplification in its diminutive enclosure, it provides a one-box solution for those seeking to enhance their car stereo, without having to worry about mounting additional amplifiers and the associated cabling. For the enthusiast seeking the best performance, 8 channels of pre-amp outputs are provided.

Easy Setup and Use

The HD-8 includes profiles tuned by professionals specifically for your car model right out of the box. Customized settings can be saved and given any name that is easy to remember. Saved profiles are easily uploaded to the unit and can be shared with other users online.

Installation harness must be specified on order for your car model. Just attach a few connectors and the unit can be installed in no time.

Click on the Shopping Cart icon on the top menu and enter your car model(s) in the Order Notes text box. If you forget to do so, don't worry, you can email us the information.  

Multiple Setup Configurations

 With 6 built-in DSP modes, the HD-8 can be configured to output 5.1CH for car cinema, or a 2 way/3way active high performance stereo setup with independent left and right subwoofer channels.

Each of the 8 channels can be individually adjusted for EQ, Delay, Volume and Phase which allows precise tuning to generate the desired sound-field.

For more information, visit https://signalemotion.com/products/hd-8/


Inputs RCA (2 x L, 2 x R), Speaker Level (FL, FR, RL, RR), Optical Toslink, Bluetooth 4.2
Outputs 8 x RCA, 6 x Amplified Channels
Input Supply Voltage 10 to 16V
Maximum Power for amplified channels 80W/channel
Nominal Power for amplified channels 50W/channel (14.4V, 4ohms, 1% THD)
Signal to Noise Ratio (SNR) > 88dB
Channel Separation > 75dB
Channel Balance < 0.5dB
DSP Modes 6 built-in
Equalizer (Independent for each channel) 36 bands, 20Hz to 20kHz
Delay (Independent for each channel) 0ms to 10ms (0.01ms adjustments)
Volume Control (Independent for each channel) for level matching -9dB to 9dB (1dB adjustments)

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