Speco pbm30 Pa Mixer Amplifier 30W 70V

Product Description

The SPECO pbm30 is a contractor-series mixer/amplifier designed for distributed audio and public address installations. Rated at 30 watts, it supports 70-volt and 25-volt line outputs alongside 4, 8, and 16 ohm speaker outputs, making it adaptable to a wide range of commercial PA configurations. The unit integrates a telephone line input, two microphone inputs, and an auto-summing stereo auxiliary RCA input, giving installers flexible source options in a single chassis. An auto mute function and manual muting contacts support paging and priority override applications common in retail, office, and light commercial environments.

The pbm30 is suited for commercial and light commercial distributed audio systems where a compact, multi-input mixer/amplifier is needed. Typical installations include background music with paging capability in offices, retail spaces, restaurants, and similar venues. The built-in music on hold output with a separate level control at 600 ohm line and 1 watt at 8 ohm makes it a practical choice for telephone hold systems integrated into a PA setup. Installation is typically performed by a low-voltage audio or systems integration contractor.

Key Features

• 30-watt output with 70-volt and 25-volt line outputs for distributed speaker systems
• Selectable 4, 8, and 16 ohm outputs for direct speaker loads
• 600 ohm telephone line input with independent level control
• Music on hold output: 600 ohm line and 1 watt at 8 ohm with separate level control
• Two microphone inputs plus auto-summing stereo auxiliary RCA input
• Bass and treble tone controls with front panel level controls
• Auto mute function and manual muting contacts for paging priority

Compatibility

Designed as an OEM-style fit for contractor-grade 70-volt distributed PA and background music systems in light commercial applications.

Installation Notes

Installation should be performed by a licensed low-voltage or audio systems contractor familiar with 70-volt distributed audio wiring practices. Power down the unit and disconnect all speaker and source wiring before making connections. Follow local building codes and NEC low-voltage wiring requirements when routing signal and speaker cables. Verify speaker tap settings and total load impedance before powering the system on.

Technical Specifications

• Output Power: 30 watts
• Line Output Voltage: 70 volts, 25 volts
• Speaker Output Impedance: 4, 8, and 16 ohms
• Telephone Line Input Impedance: 600 ohms
• Music on Hold Output: 600 ohm line and 1 watt at 8 ohms
• Auxiliary Input: Auto-summing stereo RCA
• Microphone Inputs: 2

Standard Information

• Brand: SPECO
• Manufacturer Part Number: pbm30