TEXONIC MC2120 240W Class-D Power Amplifier

Power two commercial speaker areas, a stereo sound system or two independent audio channels with the TEXONIC MC2120 Class-D power amplifier.

The MC2120 delivers 120W per channel for a combined output of 240W. Each channel supports either a 70V distributed speaker line or a compatible 8-ohm speaker load, making the amplifier suitable for commercial background music, paging and professional AV systems.

Two Independent 120W Amplifier Channels

The MC2120 contains two separate amplifier channels. Each channel provides up to 120W and has its own balanced input, gain control, speaker output and filter setting.

This flexible design allows the amplifier to operate two commercial audio areas, two 70V speaker lines or a compatible left-and-right low-impedance speaker system.

Important Power-Rating Information

Suitable Commercial Applications

• Restaurants, cafés and hospitality spaces
• Retail stores and showrooms
• Offices, boardrooms and training rooms
• Schools and educational facilities
• Places of worship and community halls
• Gyms and recreation facilities
• Commercial background-music systems
• Public-address and paging installations

Power Amplifier — Separate Source Required

Use as a Two-Zone Commercial Amplifier

Each amplifier channel can power a separate commercial speaker area. For example, Channel 1 may serve a dining room while Channel 2 serves a lobby, office or secondary customer area.

Independent source selection requires a suitable two-zone mixer, audio matrix or preamplifier. The MC2120 itself provides amplification and channel gain adjustment, but it does not contain a source-routing matrix.

Dual-Channel 70V Speaker Operation

Both amplifier channels support compatible 70V commercial speakers equipped with transformer tap settings.

Multiple speakers can be connected in parallel on each channel. Calculate the speaker load for Channel 1 and Channel 2 separately by adding the selected 70V wattage tap of every speaker on that channel.

Speaker Load and 20% Headroom

Each 120W channel should maintain its own operating reserve. Keeping approximately 20% headroom provides a recommended maximum transformer-tap load of 96W per channel.

The combined 192W recommendation is valid only when neither channel exceeds its individual recommended load of approximately 96W.

Example Two-Zone Speaker Load

Final speaker quantities and tap settings depend on the speaker model, room size, ceiling height, speaker spacing and required volume.

Independent Speaker Tap Selection

Speakers on the same 70V line do not need to use identical tap settings. Each speaker may be adjusted according to the required volume at its location.

• Use lower taps in offices, hallways and quiet areas.
• Use medium taps for retail, dining and customer spaces.
• Use higher taps where additional sound output is required.
• Recalculate the channel load after changing any speaker tap.

Two-Channel 8-Ohm Speaker Operation

The MC2120 can also power compatible low-impedance speakers, providing up to 120W per channel into an 8-ohm load.

This configuration is suitable for a stereo installation or two correctly designed low-impedance speaker circuits. Confirm the final impedance and speaker power handling separately for each channel.

Important Speaker Connection Notice

Balanced Professional Audio Inputs

Each channel includes a balanced Phoenix-style line input for connection to compatible commercial mixers, processors, audio matrices and professional source equipment.

Balanced connections help reduce unwanted noise, particularly when the audio source and amplifier are separated by a longer signal-cable run.

Independent Channel Gain Controls

Separate gain controls allow the installer to balance the output of Channel 1 and Channel 2. These controls are useful when the two speaker areas have different speaker quantities, tap settings or required listening levels.

Selectable High-Pass Filter

A selectable high-pass filter is available for each amplifier channel. The filter reduces deep bass frequencies that may not be required by compact commercial or paging speakers.

With the filter switched off, the amplifier provides a wider frequency response. Select the filter position according to the connected speakers and the intended application.

Automatic Standby Mode

Auto standby helps reduce unnecessary power use when the amplifier does not detect an audio signal for a period of time. Normal operation resumes when a suitable input signal returns.

AC and 24V DC Power Options

The MC2120 operates from a standard 110V AC supply and also provides a 24V DC input for connection to a compatible external DC power system.

Any battery, charger, backup supply, cable protection and changeover arrangement must be properly designed for the amplifier’s electrical requirements.

Standard 19-Inch Rack Installation

The full-width chassis installs in a standard 19-inch AV rack and occupies one rack unit.

Provide suitable rack ventilation and keep the amplifier’s airflow openings clear. Avoid running sensitive audio-input wiring directly beside AC power and speaker cables.

Protection and Status Monitoring

• Short-circuit protection
• Output-overload protection
• High-temperature protection
• DC fault protection
• Clip-status indicators
• Input and output signal indicators
• Power and protection indicators

A protection or clip indicator that remains active may indicate excessive input level, incorrect speaker loading, a wiring fault or insufficient ventilation.

Technical Specifications

What’s Included

• 1 × TEXONIC MC2120 Class-D power amplifier
• 1 × AC power cord
• MC2120 user manual access

Warranty

Need Help Designing the System?

Send us the speaker models, quantities, selected 70V tap settings, source equipment, room dimensions and zone requirements. We can help calculate the load for each channel and confirm whether the MC2120 is suitable for the installation.