WSM7030 - 30W voltage distribution matching transformer.
WSM7030 - 30W voltage distribution matching transformer.

EDCOR Electronics Corporation

WSM7030 - 30W voltage distribution matching transformer.

Sale price$35.61 USD

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SKU: WSM7030

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The WSM7000 series audio distribution transformers are designed to match 25V or 70V to 25V or 70V speaker distribution systems.

Primary (Input)
The input is designed for a 25V or 70V speaker distribution line.

Secondary (Output)
The output is designed for a 25V or 70V speaker distribution line.

Magnet Wire
All units are wound with the finest virgin copper magnet wire. All windings use heavy insulated wire to provide excellent manufacturing yield, lower customer cost and superior life.

The Core
EDCOR uses the finest M6 line grain oriented steel cores. Each unit is hand stacked to assure at least 92% stack.

The Bobbin
Injection molded Nylon 6/6 with the addition of 30%-35% glass fibers. The addition of glass fibers allows a higher heat deflection temperature and it brings the material to a class HB UL temperature classification.

The terminations are 0.187" (3/16") spade terminals. These terminals can be connected with 0.187" (3/16") quick disconnects or can be soldered to.

This unit comes with steel zinc plated channel/frame for mounting with the use of two screws. See dimensional drawing.


Wattage 30W
Primary (input) Distribution Voltage 25V & 70V
Secondary (output) Distribution Voltage 25V & 70V
Winding Configuration Interleave Winding
Frequency Response 50~15K Hz., <1dBu
THD+Noise <0.1% @ 1K Hz.
Insertion Loss <1 dB
Bobbin Material Nylon 6/6 GF-30
Flammability Rating Class HB
Coil Finish Wrapping Polyester Film Electrical Insulating Tape
Core Size
EI75 (0.75" x 1")
Core Material M-6 29 ga. grain oriented lamination steel
Secondary Insulation Clear air dry polyester varnish
Termination 0.187" (3/16") quick disconnects spade terminals
Mounting Zinc plated channel/frame
Mounting Orientation Horizontal
Weight 1.2 lbs.
Compliance RoHS & REACH
Dimensional Drawing 15000-EI075-100-18