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A small black electronic module with multiple wiring connectors and a USB port

Axxess Technologies

Axxess Technologies AXDSPX-ETH1 Ethernet DSPX Package 10-Output Digital Signal Processor GM 2019-Up

SKU CH-82CF-18KNQ

A digital signal processor for GM Ethernet amplifiers with 10 assignable outputs, selectable 31-band graphic or 5-band parametric EQ, independent filters and delay per channel, Bluetooth app control.

  • Product typeWire Harness
  • Ethernet interface integrates with GM amplifiers
  • 10 assignable outputs each with independent EQ and filters
  • Selectable 31-band graphic or 5-band parametric equalisation
  • Per-channel delay up to 10ms plus clipping detection
  • Bluetooth app control with configuration storage and password protection

GM Ethernet amplifier integration

The AXDSPX-ETH1 package adds a digital signal processor with an Ethernet data interface to compatible General Motors vehicles from 2019 onward. It provides 10 individually assignable outputs so each speaker channel can be tuned independently. The unit retains factory chimes and voice prompts, routing them through the aftermarket amplifier or instrument cluster. Settings are adjusted wirelessly via a mobile application on Android or Apple devices.

Verify Ethernet amplifier and model year

Confirm the vehicle uses a factory Ethernet amplifier before ordering; the processor is designed specifically for that architecture. Check the fitment list for the exact model and year range, as coverage varies across Cadillac, Chevrolet and GMC lines. An amplifier bypass harness is included in the package. Firmware updates are applied through a Micro-B USB connection.

Replaces basic line-output converters

This package upgrades from simple line-level adapters by adding independent 31-band graphic or 5-band parametric equalisation, crossover filters and per-channel delay up to 10ms on every output. Clipping detection and limiting circuits protect the new amplifier and speakers. The jump is worthwhile when the factory Ethernet amplifier is present and full digital tuning with configuration storage is required.

How it compares

Measured against everything we stock in Car Audio Accessories & Wiring, at today’s prices. Recalculated every night.

Price $341.99
Pricier than about 91% of the 2,768 comparable items (median $21.99).

Specifications

Product
Product typeWire Harness

Questions about this item

What comes in the box with the AXDSPX-ETH1 and what must I source separately?

The package includes the DSPX processor with built-in Ethernet interface and an amplifier bypass harness; you will need to supply your own aftermarket amplifiers and speaker wiring to complete the installation.

How do I decide between the 31-band graphic EQ and the 5-band parametric EQ for my GM vehicle?

Choose the 31-band graphic EQ for detailed frequency correction across the spectrum or the 5-band parametric EQ for targeted adjustments on specific problem frequencies; both modes are selectable in the app.

What does the 10 ms maximum channel delay mean when the processor is installed in my 2019 Chevrolet Silverado?

Each of the 10 outputs can be delayed independently up to 10 ms, allowing precise time alignment for front, rear and subwoofer channels in the Silverado’s cabin.

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