TOA Electronics A-903MK2 General Description, Features, Plug-in modules, Bass and treble controls

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General Description

The TOA A-903MK2, A-906MK2 and A-912MK2 Mixer Power Amplifiers control and mix up to eight

independent input signals. The A-903MK2 delivers up to 30 watts of output power, the A-906MK2 60 watts

and A-912MK2 120 watts.

Optional plug-in modules are available for use with these mixer power amplifiers to provide versatility for a

wide range of operating applications. Edge connectors on the rear of the unit permit the selection of the TOA

plug-in modules.

The mixer power amplifiers have output terminals to match 4- or 8-ohm speaker systems, or speaker distribution systems may be connected to 25- or 70-volt terminals, and can be rack mounted by using optional rack mounting bracket MB-25B. The optional perforated panel PF-511 provides suitable ventilation, finished in color to match the mixer power amplifiers.

Features

1.8-channel mixer power amplifier

2.Wide frequency response : 20~20,000 Hz ± 1 dB

3.Low distortion and noise level

4.Remote master volume control

5.Excellent output regulation

6.Bass and treble controls

7.Bridging input/output

8.Self-protection circuitry design

9.Signal processing input/output

10.Varied output impedances : 4 ohms, 8 ohms, 25 and 70 volts

11.A full range of plug-in modules

12.Portable or rack mounting type

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Contents Mixer Power Amplifier Contents Bass and treble controls FeaturesGeneral Description Plug-in modulesNomenclature Bridging Input/Output AC Power CordRemote Volume Control Terminals Preamp OutOhm direct output Class 2 wiring may be used There are two types of outputInput Connections Output Connections A-903MK2Output Connection A-906MK2/A-912MK2 Rack Mounting Remove 4 screws securing caseAmplifier Operation Volume AdjustmentTone Control Adjustment InstallationSpecifications Appearance A-903MK2 Front ViewRear View Top View Appearance A-906MK2/A-912MK2

A-903MK2, A-906MK2, A-912MK2 specifications

TOA Electronics is renowned for its commitment to high-quality audio solutions, and the A-912MK2, A-906MK2, and A-903MK2 mixers exemplify this dedication through their innovative features and technologies. These mixers are ideal for various applications, including commercial spaces, educational institutions, and houses of worship.

The A-912MK2 is a powerful 120W amplifier that stands out due to its advanced signal processing capabilities. It features an 8-channel input, allowing for versatile connection options to accommodate various audio sources. The amplifier includes a built-in priority paging function that automatically lowers the music volume when a paging input is activated. This ensures that important announcements are heard clearly without compromise on background music levels. Additionally, the A-912MK2 incorporates a high-quality digital signal processor (DSP) that enhances audio quality and provides feedback suppression, ensuring clarity in vocal applications.

The A-906MK2, on the other hand, is a compact yet robust 60W mixer amplifier. One of its key features is the dual-zone output capability, making it perfect for complex audio environments where sound needs to be directed to multiple areas. This model offers multiple input options, including both microphone and line-level inputs, and features tone control for individualized sound shaping. The A-906MK2 is particularly appreciated for its ease of use, with intuitive controls that allow for quick adjustments on the fly.

Finally, the A-903MK2 rounds out the trio as a reliable 30W amplifier designed for smaller settings or intimate gatherings. It excels with its straightforward design, featuring a built-in MP3 player providing additional playback options directly from a USB stick or SD card. Like its counterparts, the A-903MK2 supports multiple input formats and includes essential features such as volume control, bass and treble adjustments, and phantom power for condenser microphones.

All three models embrace TOA’s philosophy of creating user-friendly products without sacrificing performance. They are crafted with durable materials for longevity and reliability in professional settings. Furthermore, these mixers are equipped with various safety features, including thermal protection and overload warning indicators, ensuring safe operation under varying conditions.

In summary, the A-912MK2, A-906MK2, and A-903MK2 by TOA Electronics are exceptional tools for delivering high-quality audio experiences across diverse environments. Their innovative features, reliability, and sound engineering make them excellent choices for professionals seeking performance without compromising on usability.