TOA Electronics A-906MK2, A-903MK2, A-912MK2 user service Mixer Power Amplifier

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TOA 900 SERIES II

MIXER POWER AMPLIFIER

Operating Instructions

A-903MK2

A-906MK2

A-912MK2

TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER.

NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.

THE LIGHTNING FLASH WITH ARROWHEAD WITHIN A TRIANGLE IS INTENDED TO TELL THE USER THAT PARTS INSIDE THE PRODUCT ARE A RISK OF ELECTRIC SHOCK TO PERSONS.

THE EXCLAMATION POINT WITHIN A TRIANGLE IS INTENDED TO TELL THE USER THAT IMPORTANT

OPERATING AND SERVICING INSTRUCTIONS ARE IN THE PAPERS WITH THE APPLIANCE.

Please follow the instructions in this manual to obtain the optimum results from this unit. We also recommend that you keep this manual handy for future reference.

TOA Corporation

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Contents Mixer Power Amplifier Contents General Description FeaturesPlug-in modules Bass and treble controlsNomenclature Remote Volume Control Terminals AC Power CordPreamp Out Bridging Input/OutputInput Connections Class 2 wiring may be used There are two types of outputOutput Connections A-903MK2 Ohm direct outputOutput Connection A-906MK2/A-912MK2 Remove 4 screws securing case Rack MountingAmplifier Tone Control Adjustment Volume AdjustmentInstallation OperationSpecifications Front View Appearance A-903MK2Rear 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.