Overview The A2387A is a high-power, dual-source, autoformer based speaker selector. Dual source operation makes two different amplifiers/receivers drive selected speakers simultaneously. Each speaker pair has its own input selector, volume control and on/off switch. If using 4? or 8? speakers, the A2387A can automatically match any impedance. Features Pluggable screw terminal connections 300W total RMS continuous power handling Heavy duty transformer based impedance system protects against power loss Left and right channels are completely isolated for safe operation with any amplifier Quick connect terminals will accomodate 16AWG to 22AWG wire Can be connected to two different amplifiers via A/B switch Circuit breaker protected Specifications Frequency Response: 30Hz ~ 20 kHz ± 2dB Max Audio Attenuation: - 33 dB Power Handling: 300W RMS Max (total) Dimensions: 432L x 152W x 56H mm *Specifications are subject to change without notice.