Audio controller SDB-2.1

The SDB-2.1 is a highly efficient dual-source speaker selector that controls two pairs of speakers. The front panel provides a separate volume control for each speaker pair, allowing you to adjust the volume in each room from one convenient location. With two amplifier inputs, the SDB-2.1 allows you to choose a separate program in each room. Each zone also has an on/off switch, which allows you to keep the volume control at a set level while turning the speakers on or off. The SDB-2.1 uses high-quality impedance-matching autoformers to maintain a safe operating load at the amplifier while distributing maximum power throughout your system. Designed for use with either 4- or 8-ohm speakers, the SDB-2.1 is equipped with internal jumpers to select the degree of impedance matching based on the impedance of your speakers and your amplifier's impedance requirements. Lets you select music and control volume in two rooms from a central location Dual amplifier inputs allow a choice of program in each room Printed room labels included Detachable snap connectors are color coded for easy wire termination Selectable impedance matching accommodates 4- or 8-ohm speakers High-quality autoformers provide trouble-free performance for years Shipping Dimensions: 10.0" (W) x 4.8" (H) x 9.7" (D), (25.4 x 12.1 x 24.5 cm) Shipping Weight: 4.8 lbs (2.2 kg) Connector(s): Detachable 4-pole color-coded snap connectors Impedance Matching Type: Autoformer Max Wire Size: 14 AWG (1.9 mm) Power Handling: 100 watts RMS continuous per channell Speaker Impedance: 4 ohms Volume Control: 12 steps; total attenuation 42 dB Zone Audio Controls: Volume knob, on/off, Amplifier A/B switch