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Valcom VMT-2 600 ohm isolation transformer, wall-mountable metal box with screw terminals

Valcom, Inc

Valcom, Inc VMT-2 600 Ohm Isolation Transformer personal protective equipment

SKU CH-PQAA-7CBD0

An audio isolation transformer providing 600 ohm magnetically coupled line-level isolation with screw terminals in a wall-mountable 3.8" × 1.8" × 1.3" enclosure

  • Provides galvanic isolation for audio signals using a 600 Ohm transformer
  • Screw terminals give secure, tool-free wiring for permanent installs
  • Compact 1.8 x 3.8 x 1.3 inch footprint fits tight wall-mount spaces
  • Lightweight 8 oz unit adds minimal load to mounting surface
  • One-year limited warranty backs the new Valcom VMT-2 transformer

Valcom VMT-2 Isolation Transformer

The Valcom VMT-2 is a 600 ohm audio isolation transformer designed to magnetically couple line-level signals. It suits installers and technicians who need to separate ground references between two audio circuits. The unit provides galvanic isolation without active electronics. It mounts on a wall for fixed installations.

Screw Terminal Interface Limits

Connections use screw terminals on both input and output sides. This wiring method requires stripped conductors and a screwdriver for secure termination. The terminals accept solid or stranded wire within standard gauge ranges for line-level audio. No plug-in connectors or balanced XLR sockets are provided on this model.

Pre-Installation Checks

Verify that your audio sources and destinations operate at line level with a 600 ohm impedance match. Confirm the 1.3 inch depth, 1.8 inch height and 3.8 inch width fit the intended mounting surface. Ensure the wall location allows access to the screw terminals for wiring and future maintenance.

How it compares

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Price $37.99
Pricier than about 64% of the 5,612 comparable items (median $24.99).

Specifications

Product
Brand nameValcom, Inc

Questions about this item

Should I choose the VMT-2 or a different Valcom transformer for 600 ohm line-level isolation?

The VMT-2 is built for 600 ohm audio isolation; other Valcom models target different impedances or power levels, so match the transformer to your circuit's rated impedance.

What does the 600 ohm rating mean when the VMT-2 is installed in a rack?

It matches the transformer's windings to standard professional line-level gear, preventing level loss and distortion when bridging balanced or unbalanced 600 ohm circuits.

The screw-terminal interface — what wire gauge does it cap in practice?

The screw terminals accept typical stranded or solid hook-up wire used in 600 ohm audio wiring; the mechanical clamp limits conductor size to what fits under the screw head.

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