AUDAC TRM124/B – 70/100V Transformer Module for VEXO110, Black

What is the AUDAC TRM124/B 70/100V transformer module?

The AUDAC TRM124/B is a 70/100V line transformer module that converts the passive AUDAC VEXO110/B 10" loudspeaker for use on constant-voltage distributed systems. It replaces the cabinet's standard backplate with an aluminium backplate carrying a copper toroidal transformer. Power taps of 240 W and 120 W at 100V, or 240 W, 120 W and 60 W at 70V, let the high-performance VEXO110 join a distributed paging and music system.

How does the AUDAC TRM124/B 70/100V transformer module work?

The TRM series are optional 70/100V line transformers for the passive variants of AUDAC's VEXO loudspeakers. To install the TRM124, remove the VEXO110's standard low-impedance backplate and replace it with the TRM124 backplate, on which the transformer is integrated. Inside, a 2-pin connector links the transformer secondary to the loudspeaker at 8 Ω. Outside, an 8-pin terminal block connects to the 70V or 100V amplifier line. The primary taps present 20.83 Ω, 41.67 Ω or 83.33 Ω to the line, giving 240 W or 120 W at 100V, and 240 W, 120 W or 60 W at 70V. The transformer passes 50 Hz – 20 kHz within ±3 dB, keeping the VEXO110's full-range character on a distributed system. The module ships with an M8 x 80 mm mounting bolt and a set of metal, rubber, flat and spring washers. Choose the black version to match a black VEXO110, or the TRM124/W for the white cabinet. A 70/100V amplifier such as the AUDAC PMQ240 can drive the converted loudspeakers.

What are the key features of the AUDAC TRM124/B 70/100V transformer module?

• Designed for VEXO110 — A direct backplate replacement for the passive VEXO110 10" loudspeaker.
• 240 W and 120 W taps — Taps of 240 W or 120 W at 100V, and 240 W, 120 W or 60 W at 70V, set the level per speaker.
• Copper toroidal transformer — A toroidal core passes 50 Hz – 20 kHz within ±3 dB.
• Simple installation — Swap the standard backplate for the TRM124 and connect the internal 2-pin lead.
• Terminal block line connection — An 8-pin terminal block accepts the 70V or 100V distribution cable.
• Mounting hardware included — Ships with an M8 x 80 mm bolt and metal, rubber, flat and spring washers.
• Color-matched backplate — The black (RAL9005) aluminium backplate matches the black VEXO110.

Where is the AUDAC TRM124/B 70/100V transformer module typically used?

• Sporting facilities
• Multi-purpose room
• Commercial and retail venues on 70/100V systems
• House of worship

Technical Specifications

Frequently Asked Questions