Pro-12 High Power Autoformer 12 Pair Speaker Selector
	RS-Pro12
12 pair transformer base
Was	$449.00
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If you want a powerful speaker selector,  the PRO-12HP is a highly efficient dual source, impedance-matching speaker selector. It will handle more power and in cooler temperature than the resister based speaker selector. This high quality speaker selector is designed for use with either 4 or 8 ohm speakers. The A/B switch located on the front panel allows all your speakers to be driven from either of two amplifiers.
The PRO-12HP speaker selector is equipped with a low-frequency protection circuit to reduce subsonic signals. This allows higher power operation without amplifier shut-down. Utilizing audio-grade impedance-matching autoformers, the PRO-12HP is capable of maintaining a safe operating load at the amplifier while distributing maximum power throughout your system. The PRO-12HP is equipped with a rotary switch, located on the rear panel, which is used to set the appropriate impedance to be seen by your amplifier, based on the number of pair of speakers connected. This switch selects the proper taps of the autoformers, allowing the amplifiers power to be delivered safely to the speakers.

Features
Accommodates up to 12 pair of speakers
Dual source inputs (AMP A and AMP B)
A/B selector switch
Selectable autoformer-based impedance matching (up to 12x)
Low frequency protection circuit
Removable input/output connectors
Isolated left and right channel grounds
Printed room labels included
 
Specifications
 
Power Handling: 100 watts RMS per channel (300 watts Peak)
Frequency Response: 20 Hz to 20 KHz
Min. Speaker Impedance: 4 ohm
Impedance Matching Type: Autoformer-Based
Max. Wire Gauge: 12 awg
Low Frequency Protection: 6 db high-pass centered @30Hz
Weight: 10 lb
Dimensions: 17"W x 2.875"H x 8"D (432 x 74 x 204mm)