Matrix™ Receiver Amplifier

Amplifier | Infrared Microphone Receiver | Audio Mixer | Wall Panel Controller







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Matrix™ Receiver Amplifier Description

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The Matrix™ is ideal for any room where the amplifier needs to be out of sight and/or in a vault for security. It connects to the same ceiling sensor and speakers as our other user-friendly systems.

With a simple CAT-5 cable, the TeachLogic CPS-121 (or CPR-125) wall controller manages the audio sources and volume levels so that the amplifier can be installed somewhere secure.

The controller has an intuitive touch interface with the additional benefits of Bluetooth and an additional 3.5 mm input. When combined with up to 2 wireless microphones and four (8-ohm) overhead speakers, the Matrix™ is more than just a sound system…it creates a true “Sound Field” in the classroom so every student hears all audio sources equally well.

Why IR?

Matrix™ Receiver Amplifier Details


  • Two infrared wireless microphone receivers with volume control
  • Two stereo, line level, auxiliary inputs (3.5mm)
  • One dual mono line level output for Assistive Listening system with gain control (3.5mm)
  • Two Power Amplifiers: Total 50 watts RMS class D amplifier, 25 watts ea. channel
  • Security Alert, contact closure, N/O, N/C
  • Page Over-ride (muting) with Page Pass-through to classroom speakers input level 100v, 70v, 25v
  • RS-232 wall panel control, RJ-45
  • RS-232 on/off switch
  • Teacher Priority instantly attenuates all line inputs
  • Bass/Treble control equalizer ±12 dB
  • Two external sensor inputs, RCA


Receiver Input

Infrared FM


FM Wide-band

Reception Frequencies

Ch. A: 2.08 MHz
Ch. B: 2.54 MHz

Infrared Wavelength

850 nm

Tone Signal

Ch. A: 32.768 kHz


50 μs

Frequency Response

40 hz – 18 kHz, ±3 dB

S/N Ratio

>65 dB

Total Harmonic Distortion

<1 % @ 1 kHz

Nominal Deviation

±10 kHz

Maximum Deviation

±25 kHz

External Sensor Input

2, RCA

Connectivity Coverage

1,600 Sq. Ft., 50ft. line of sight

Line Inputs

Two Line Level, Aux input with +10dB Gain Control, 3.5mm

Line Output

One 3.5 mm Line Level output with Gain Control

Page Over-Ride

Input:100v, 70v, 25v, 2pin Phoenix


Level Control

Security Alert

Contact Closure (COM, N/O, N/C)


Bass/Treble Control, ±12 dB

Output Power

Two digital Amplifiers, 25 watts ea, 50 Watts total (RMS)

Output Impedance

4 Ω min. per channel

Output Connection

One Phoenix Connector

Power Supply

19 VDC, 3.4 A; CE, CSA and UL Listed

Dimensions 1.5 × 7.5 × 4.25 in
Weight 1 lbs 5 oz

Matrix™ Receiver Amplifier Components

Classroom Component Layout

  • Sapphire (IRT-60) wireless pendant transmitter, a high-quality cardiod microphone with lanyard.
  • ICS-55 Ceiling Sensor gives 360-degree infrared coverage for optimal audio performance.
  • Matrix™ Sound Field amplifier/receiver to support classroom audio sources.
  • SP-628 Ceiling Speakers (four shown) provide excellent quality voice reproduction.
  • SP-2000 Wall Mount Speakers (optional), allow for installation when ceiling is not accessible.
  • CPS-120 Wall Mount Control Panel with Bluetooth.

Matrix™ Receiver Amplifier Downloads

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