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[Image for ADX-0808]
8x8 Multi-Zone Audio Matrix
8x8 Matrix Preamp with DSP
Model ADX-0808 - Discontinued

$1264.00 USD
  • 8 source, 8 zone stereo audio matrix  (also 16x16)
  • Per zone volume control, tone, and balance controls
  • Per zone 10-band EQ, low-pass / high-pass filters
  • Add a sub to any zone 2.1 channel groups
  • Ethernet, RS-232, IR, and front panel controls
  • Control app for Android*
  • Setup Utility for Mac or Windows™
  • Compatible with Control4, URC, RTI and more
  • USA designed and assembled

Categories: Matrix Switcher, Distributed Audio, Audio Matrix

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[8x8 Matrix]
8x8 Matrix
[Rear view]
Rear view
[App (iOS/Android)]
App (iOS/Android)
[Simple (Android)]
Simple (Android)
[Setup (Mac/PC)]
Setup (Mac/PC)


The ADX-0808 is the cornerstone of a quality distributed audio system.  Loaded with features like Android apponboard volume control, 2.1 channel sub/sat zones, a 10-band equalizer, tone and balance controls, the ADX-0808 mates up with any zone amplifier and control system to deliver high fidelity audio to up to 8 independent stereo zones. New discrete commands are provided in the revised ADX manual, available for download below.
  • Eight sources and eight zones (Model ADX-1616 has 16 sources, 16 zones)
  • Ethernet, RS-232, IR, and front panel control options
  • Digital volume control, 10-band EQ, tone, and balance for each output zone
  • Low-pass filter and zone grouping feature for 2.1 channel audio zones
  • Single-cable audio connection (DB25) to SonaFlex amplifiers
  • Setup Utility for real-time configuration (Mac or Windows™)
  • Rack mountable with included 2U rack-mount ears
  • USA Designed and assembled

See video tutorials for more information.

* The ADX app is designed for use with all versions of Android OS. This app is offered as a free convenience, and is not guaranteed to be compatible with a specific device.


See hotel, restaurant, and home application drawings featuring the the ADX.


Key Features
  • 8x8 matrix switcher (also available ADX-1616)
  • Integrates seamlessly with third party control systems from Control4, URC, RTI and more
  • IR and RS-232 codes available for use with virtually any third party control system
  • Zone grouping (10 groups) and Source/Zone combination presets (10 source/zone combinations)
  • Global source selection (all zones on to same source)
  • Front panel lockout
  • Simple configuration using our Setup Utility via serial, Ethernet or USB drive
  • 2U rack mount ears included

DSP Features Per Zone
  • ZQ™ 10-band Equalization
  • Low-pass and high-pass Butterworth filters
  • Basic tone controls (bass/treble) and balance
  • Low-pass filter and 2.1 zone grouping feature designed for adding a sub in each audio zone

  • Stereo analog audio - 8/8 (x2 RCA)
  • Stereo analog audio - 8/8 (x2 DB-25 for SonaFlex)

Control Interface
  • Ethernet via telnet commands (including Android app)
  • RS-232 two-way serial (Control4 and RTI drivers available)
  • Front panel IR sensor
  • Rear panel IR input (3.5 mm jack or 3-pin header)
  • Front panel control (see video) with capacitive touch surface and simple rotating multi-function knob


Audio Parameters
  • Input Impedance: 100K
  • Min Load Impedance: 10K
  • Multi-channel Digital: No
  • Frequency Response: 10-25kHz
  • S/N Ratio: 82dB
  • THD+Noise: 0.02%
  • Crosstalk: -85dB
  • Connector Types (Input): RCA
  • Connector Types (Output): RCA
  • Product Dimensions:3.5 x 16.5 x 8.25 (H-W-D, inches)
  • Net Product Weight: 9.9
  • Shipping Weight: 11.4
  • Agency Approvals: FCC
  • DC Input Connector: 5.5 x 2.1mm
  • DC Input Voltage/Polarity: 18V center positive
  • Max DC Input Current: 600mA/1.1A
  • Heat Output:38/68 BTU/hr
In the Box
  • Power Supply: Model 803-170
  • Rack Mount Ears: Model 1192A
  • User Manual


BZB Review:
ADX Series Matrix Preamp

(YouTube link)

BZB Express, one of our distributors, published this review of the ADX-1616 and ADX-0808 Matrix Preamps.

Video Tutorial:
ADX Front Panel Controls

(YouTube link)

Many features can be used from the front panel controls. This video briefly explores how to use the touch-sensitive buttons and multi-function knob to switch sources, adjust volume, modify EQ settings, and other tasks.

Video Tutorial:
Naming Sources, Zones, Favorites and Groups

(YouTube link)

ADX matrix preamps allow easy naming of source devices, output zones, favorite scene presets, and groups of outputs. This tutorial shows how to use the ADX software utility to enter custom names and save the configuration file.

Video Tutorial:
Create, Load, and Save EQ Presets

(YouTube link)

With ADX matrix preamps you can adjust a 10-band EQ on each stereo output. This tutorial shows how to load ten basic presets provided with the PC utility, and how to create and save your own presets.

Frequently Asked Questions

Q: Do you offer an iPad, iPhone or Android app?
 The new ADX app for Android is available now. It's great for setup and control in a stand-alone system where a third party control system is not required.

Q: Can I detect the volume on a particular output remotely?
A: Yes. Use the setup utility or serial commands to poll the outputs. The response shows volume (voltage) on each channel of the output querried. This feature is new for firmware version 2.6.7 and setup utility version 2.2.

Q: What is the process to create a 2.1 zone group?
First apply the low-pass filter to one zone output, which produces a mono signal on both channels. Then group the lowpass zone with a full range or high-pass zone, so that group commands (e.g. volume, mute, and switching) effect both outputs. See this application example for more detail.

Q: Can I use both of the mono outputs in a lowpass zone?
Yes. Both low level zone outputs may be connected to separate powered subwoofers, or to two separate amplifiers driving passive subs.

Q: Do you offer an iPad, iPhone or Android app?
The new ADX app for Android is available now. It's great for setup and control in a stand-alone system where a third party control system is not required.

Q: What is the DB-25 connector for on the rear panel of the ADX?
A: The SonaFlex multi-zone amplifier accepts input signals from ADX or HLX via the DB-25 connector as an alternative to its RCA inputs. The ADX-1616 can support two SonaFlex amplifiers. Do not use SonaFlex RCA inputs when using the DB-25 input.

Q: On the front panel controls, my changes to an EQ preset don't take effect immediately. Why? 
Select another preset in the zone and then return to the changed preset. EQ presets are not designed to be adjusted on the fly. 


Related Products

Model ADX-1616
[16x16 Multi-Zone Audio Matrix with App]
16x16 Matrix Preamp with DSP
Model SF-16M
[SonaFlex Series Matrix Amplifier]
16 Channel Matrix Amplifier with FlexPort Inputs
Model HLX
[HLX Series matrix switch front panel]
HLX Modular Audio-Video Matrix

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