TOA Electronics 10-Channel Passive Monitor Panel - MP-032B

Product Overview

The TOA MP-032B is a 10-channel passive monitor panel for speaker line level monitoring of multi-channel public address and program audio systems. It provides aural and visual monitoring of up to 10 power amplifiers simultaneously, giving operators at-a-glance output level verification and direct audio reference without interrupting the main signal path.

Product Description

The MP-032B occupies a standard 19-inch rack position and allows technicians to monitor 10 separate amplifier outputs or distributed audio channels from a single front-panel interface. A channel selector switch targets any of the 10 inputs, a large watt meter displays output level, and a built-in 12 cm full-range speaker provides direct audio monitoring. A line voltage selector switch accommodates 25 V, 50 V, 70 V, and 100 V distributed audio systems.

Because the MP-032B is entirely passive — no amplification is added to the monitored signal — it safely bridges across amplifier outputs without loading or affecting system performance. M4 screw terminals provide reliable permanent wiring connections. Rack mounting hardware is included.

Key Features

• 10-channel monitoring — Monitors up to 10 separate amplifiers or distributed audio channels simultaneously
• Passive design — Bridges speaker line level without loading or altering the main signal path
• Switchable line voltage — Supports 25 V, 50 V, 70 V, and 100 V distributed systems
• Watt meter display — Large analog meter for visual output level verification
• Built-in 12 cm speaker — Direct audio reference monitoring at the rack without external speakers
• Standard 19-inch rack format — Rack mounting screws included

Typical Applications

• System racks in stadiums, arenas, and large-venue PA installations requiring amplifier monitoring
• Head-end equipment rooms in schools, hospitals, and commercial buildings with multi-zone PA
• Broadcast facilities and campus PA installations needing continuous amplifier health verification
• Transit system control rooms monitoring zoned public address outputs
• Houses of worship with multiple distributed amplifier zones requiring operator control

Technical Specifications

Frequently Asked Questions

• How many channels can the MP-032B monitor? Up to 10 separate channels or amplifier outputs. The channel selector switch lets you choose which to monitor aurally and via the watt meter at any time.
• Is it passive — will it affect my amplifier output? Yes, it is passive and bridges across the speaker line without loading or altering system performance.
• What line voltages does it support? Switchable for 25 V, 50 V, 70 V, and 100 V distributed audio systems.
• Does it have a built-in speaker? Yes — a 12 cm full-range monitor speaker is built in for direct audio reference of the selected channel.
• What rack space does it require? Standard 19-inch width with 133 mm height and 87 mm depth. Rack mounting screws with washers are included.
• Is it compatible with any TOA amplifier? Yes — any TOA or compatible amplifier driving a 25 V, 50 V, 70 V, or 100 V distributed speaker line can be monitored by selecting the appropriate voltage setting.