Tested typical functions and appears to work well. Currently has three input modules but that can be expanded by acquiring more. Please see pictures and video for cosmetic and functional condition. Will ship carefully packaged by me, thank you.

Toa Electronics A-906MK2

Highlights

• For Background Music, Paging, On-Hold

• For Education, Transportation, Medical

• 8 Slots for Line or Mic Input Modules

• 4/8 Ohms & 25/70V Operation

• Master and Individual Volume Controls

• Bass and Treble Controls

• Paging Priority Modes

• Terminals for Remote Volume/Mute Control

• Low-Cut Filter, Insert Jacks, Aux Output

Features

From the TOA 900 series of mixer/amplifiers, the A-906MK2 is a customizable unit ideal for background music, paging, on-hold messages, and other applications in hospitals, airports, schools, and other similar venues. The A-906MK2 is designed for high performance with a low self-noise, a wide frequency response, and excellent output regulation. This 60W unit features 8 input channels that accept any combination of TOA's plug-in modules for ultimate customizability. The front panel features a master volume control and individual channel volume controls as well as bass and treble controls.

Input capacity may be increased by connecting another mixer or mixer/amplifier to the bridge in/out jack. The unit features transformer-isolated outputs, and a direct output mode if non-transformer operation is desired.

Modular Input Design

Eight expansion input slots house modules that provide line or microphone level connections.

25 and 70 Volt Operation

The mixer/amplifier is capable of 70V operation, suitable for long speaker runs throughout offices, airports, hospitals, restaurants, etc.

Paging Priority Modes

A Dual Mute Bus permits multiple levels of paging priority, using optional mute-type modules.

External Mute Terminals

Accommodate external mute switchers for remote mute operation.

Remote Master Volume Terminals

Enable remote master volume control.

Low-Cut Filter

A master low-cut filter switch eliminates low-frequency noise and rumble.

Auxiliary Output

The auxiliary output accommodates an external recording device, mixer, and more.

Insert Jacks

Insert jacks accommodate outboard signal processing.

Delayed Power Up

A power up delay feature protects the outputs and connected speakers from damage caused by surges during abrupt amplifier power up.

8-Channel Mixer Power Amplifier

A-906MK2

The A-906MK2 Mixer Power Amplifier controls and mixes up to eight independent input signals. The Mixer Power Amplifier delivers up to 60 watts of output power. Optional plug-in modules are available for use with mixer power amplifier to provide versatility for a wide range of operating applications.

Type

8-channel mixer power amplifier

Power Source

AC mains, 120 V, 60 Hz

Power Consumption

100 W

Output Power

60 W RMS

Power Bandwidth

(D) 20 to 20,000 Hz, 0.5% THD, (T) 50 to 20,000 Hz, 0.5% THD

Frequency Response

(D) 20 to 20,000 Hz, ±1 dB

(T) 20 to 15,000 Hz, ±1 dB, (T) 20 to 20,000 Hz, +1 dB, -3 dB

Total Harmonic Distortion

0.02% at 1 kHz, rated output

Input

Eight Input Ports : Each port accepts any input modules.

One Bridging Input/Output

Input Sensitivity/Impedance

Input Port #1 to #8 : 100 mV/10 kΩ

Bridging Input/Output : 100 mV/3.3 kΩ

Preamp OUT / Power Amp IN

1000 mV into 600 Ω/1000 mV, 10 kΩ

Outputs (T)=Transformer, (D)=Direct

Main (T) : 8 Ω, 25 and 70 volts, balanced, Main (D) : 4 Ω, unbalanced

Aux : 10 kΩ, 1 V

Output Regulation (1kHz)

(D) Less than 0.5 dB, no load to full load

(T) Less than 1.0 dB, no load to full load

Signal to Noise Ratio

Master volume min : 90 dB

Master volume max : 77 dB

Power amplifier only : 105 dB

Tone Control

Bass : ±10 dB at 100 Hz, Treble : ±10 dB at 10 kHz

Control

8 Input gain control 1 Master gain control 1 Bass control

1 Treble control 1 Power ON/OFF switch 1 Tone defeat switch

1 Low-Cut switch (60 Hz, 6 dB/octave)

Indicator

1 Power LED, 1 Protect LED, 1 Signal LED, 1 Normal LED, 1 Peak LED

Protection

Self-protection, with AC fuse (inside)

Connector

Input No.1 to No.8 : Card-edge connector

Bridging, Mixer preamp. output, Power amp. input, Aux output : RCA phono jack

Output : Screw-terminal strip

Mute, Remote VR : Screw-terminal strip

AC outlet : 3-pin grounding type

AC power cord/plug : SJT, 3-prong type

Operating Temperature

-10 °C to +60°C (12 °F to 140 °F)

Finish

Black

Dimensions

420(16.54") x 99.1(3.90") x 358(14.09") mm

Weight

9.6 kg (21.16 lb.)