Soundtube MCA2004T 4 Channel Lo-z Hi-z Amplifier

Product Description

The SOUNDTUBE MCA2004T is a 4-channel power amplifier designed to drive both low-impedance (Lo-Z) and high-impedance (Hi-Z) speaker loads from a single unit. This dual-mode capability makes it well suited for distributed audio installations where 70-volt or 100-volt line systems operate alongside standard 4-ohm or 8-ohm loudspeakers. The MCA2004T delivers four discrete amplifier channels, allowing installers to cover multiple zones or speaker arrays without adding external transformers or additional amplifier units. It is installed by audio-visual integrators, low-voltage contractors, and commercial sound technicians working in commercial, hospitality, retail, and light institutional environments.

The MCA2004T fits distributed audio systems requiring flexible impedance handling across multiple zones. Typical applications include background music systems, paging systems, and foreground audio in commercial spaces where a mix of ceiling speakers on Hi-Z lines and passive cabinet speakers on Lo-Z runs must be driven from a centralized rack location. This amplifier is appropriate for both new installations and retrofits where a compact multi-channel solution is needed in a single rack-mountable chassis.

Key Features

• 4 independent amplifier channels in a single chassis
• Supports both Lo-Z (4-ohm/8-ohm) and Hi-Z (70V/100V) speaker loads
• Designed for centralized rack installation in distributed audio systems
• Eliminates need for external impedance-matching transformers in dual-mode applications
• Sold as a single unit (EA), suitable for zone-by-zone expansion

Compatibility

Designed as an OEM-style solution for distributed commercial audio systems requiring multi-channel Lo-Z and Hi-Z amplification in a single rack-mount unit.

Installation Notes

Installation should be performed by a licensed low-voltage contractor or qualified audio-visual integrator familiar with distributed audio system design. Power down the amplifier and disconnect all speaker wiring before servicing or reconfiguring channel outputs. Follow all applicable NEC low-voltage wiring requirements and local AHJ guidelines when routing speaker cable and signal lines. Do not exceed the rated impedance range for each channel when connecting Lo-Z speaker loads.