Overview

The TOA M-900MK2 is an 8-slot modular mixer preamplifier that accepts any combination of TOA plug-in input modules. With a balanced transformer-isolated output delivering up to +20 dBm and a vanishingly low 0.01% THD, it is the central control hub in TOA commercial paging and background music systems.

Description

The M-900MK2 provides a flexible, user-configurable mixing platform for small to medium commercial AV installations. Its eight module slots accept any TOA plug-in input module including microphone, line, telephone interface, tuner, and priority input modules enabling you to tailor the system precisely to your application without external adapters. A bridging RCA jack expands the system by linking multiple M-900MK2 units. Individual channel potentiometers, bass and treble tone controls (10 dB), and a master output pot give complete front-panel control. Status LEDs monitor power, peak, protect, signal, and normal conditions at a glance, while dual mute buses and protection circuitry guard system integrity.

Key Features

• 8 slots for TOA plug-in input modules (mix any combination of mic, line, tuner, phone, etc.)
• Balanced transformer-isolated output: +4 dBm nominal, +20 dBm maximum
• Ultra-low 0.01% THD for clean, broadcast-quality audio
• Power bandwidth: 30 Hz 20 kHz at +20 dBm, 0.5% THD
• Bass and treble tone controls 10 dB
• Dynamic range: 90 dB at minimum volume; 77 dB at maximum volume
• Dual mute bus for priority paging and emergency override
• Bridge in/out RCA jack for system expansion
• Status LEDs: Power, Peak, Protect, Signal, Normal
• Self-protection with internal AC fuses

Typical Applications

• Commercial paging and BGM systems in retail, hospitality, and corporate facilities
• Multi-source mixing for distributed audio systems
• Zone control preamplifier driving TOA 70V/100V power amplifiers
• Houses of worship PA system source mixing
• Healthcare and education campus announcement systems

Technical Specifications

FAQ

What is the difference between the M-900MK2 and the M-900MK2 R Kit?
The M-900MK2 R Kit bundles the mixer preamplifier with a rack mounting kit. The base M-900MK2 is the standalone unit. Both are functionally identical.

What input modules are compatible with the M-900MK2?
All TOA M-900 series plug-in modules are compatible, including microphone, line, telephone, AM/FM tuner interface, and priority input modules. Contact Creation Networks for the full module selection.

Can multiple M-900MK2 units be linked?
Yes. The bridging RCA jack allows you to cascade multiple units for larger installations requiring more than 8 input channels.

Does the M-900MK2 ship with input modules?
No. The chassis requires at least one input module to pass audio. Input modules are specified and ordered separately to match the installation requirements.