The TR-91 is a 100W transformer for speaker signals. The unit takes one 4Ω/8Ω channel from a speaker output of a power amplifier, transforms it to 70/100V and distributes it to an array of loudspeakers.
Bandwidth - 18kHz (−3dB).
Max. Power - 100 watts.
Passive Device - No power required.
Desktop Size - Compact size. 2 units can be rack mounted side−by−side in a 1U rack space with an optional RK−1 rack adapter.
INPUT:1 low−impedance (4Ω/8Ω) speaker input on a terminal block connector.
OUTPUT:1 high−impedance speaker on a terminal block connector.
VOLTAGE GAIN:7.4dB/10.5dB (70V/100V).
OPERATING TEMPERATURE:0° to +40°C (32° to 104°F).
STORAGE TEMPERATURE:−10° to +60°C (14° to 140°F).
HUMIDITY:10% to 90%, RHL non−condensing.
PRODUCT DIMENSIONS:21.46cm x 16.30cm x 4.36cm (8.45" x 6.42" x 1.72" ) W, D, H
PRODUCT WEIGHT:1.6kg (3.5lbs) approx.
SHIPPING DIMENSIONS:35.10cm x 21.20cm x 7.20cm (13.82" x 8.35" x 2.83" ) W, D, H