RABX2™ – Bluetooth and Auxiliary Input Remote Audio Mixer

Intuitive easy to use interface. Pair your device, Turn the Volume up.
No pairing or volume pump tones that can damage the speaker.
Ultra low noise, Interference Resistant, SMT-based design
Standard Bluetooth® 3.0, class 2
Custom ID naming. IE. Classroom-301, Room-204
10 Meter / 33 ft. operating range
Installs in a standard outlet or electrical switch box
Sealed conductive plastic volume controls will not corrode
Easy to install – strip and insert into the provided plug connectors
Double anodized markings will not fade or wear off
Connects VIA CAT5 to existing Octasound RAMX2 mixers
Weather Resistant Design


Toughest Built Electronics In the Industry. 
KDM models have lasted 20 plus years in the field. They are built tough for harsh environments to provide years of service. We use solid metal plates and anodized markings that never wear off. The volume controls use conductive plastic and are sealed from outside elements. They will never oxidize and cause issues with sound quality.

Technology without custom software / programming!
The product never expires. KDM does not use any software or require product specific installation / operational training classes. When you buy KDM products you actually own it, not the installer or manufacturer.

Easy to operate, easy to install.
No operating manual is required. Simply hit the reset button to begin pairing your Bluetooth device or use the AUX input and turn up the volume! Installation requires a screwdriver and wire strippers.

Install them anywhere and add on at anytime.
The Octasound RABX2 can be placed anywhere in a facility and fits into a standard single gang electrical box. It’s unique daisy chain ability allows multiple units to be wired together with only one home wire run.

Hearing assist Ready
An additional constant level output provides a means to supply the RABX2 audio to a separate Zone or Hearing assist system. When the RABX2™ volume is adjusted it will not adjust the other zone / hearing assist system.

Bluetooth Specifications Auxiliary Input General
Standard: Bluetooth 3.0 Class 2 Gain: 17 dB (150 mv to 1.0 v) Input Impedance: Greater than 10k ohm
Sample Width: 32 Bits Response: ± 1 dB 40 Hz to 15 kHz Output Impedance: Designed to operate into 600 ohm balanced or unbalanced.
Sample Rate: 48 kHz Noise: Greater than 75 dB S/N Temperature Range: -20 °C to 55 °C
Frequency Band: 2.4 ~ 2.48 GHz Distortion: Less than 0.3% at 1.0 volt output. Power Required: Local power via AC/DC adapter (PS-RABX2) 12 Vdc / 30 ma.
Modulation Method: GFSK, PI/4-DQPSK, 8 DPSK Dimension / Weight: 4.5 L x 2.75″W x 1.25 Deep /
RF Input Impedance: 50 Ohms
Operating Range: 10 Meters (33 Feet)
Sensitivity: -85 dBm at .1% BER
RF TX Power 4dBm