Dual Source Speaker Selectors with Volume Control (SDB-2.1) – Russound

$543.48 +GST

The SDB-2.1 is a highly efficient dual-source speaker selector that controls two pairs of speakers

2 in stock

SKU: SDB-2.1 Categories: , , , , Brand:


Dual Source Speaker Selectors with Volume Control (SDB-2.1) – Russound

The front panel of this Dual Source Speaker Selectors 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



Additional information

Shipping weight 2.2 kg
Shipping dimensions 254 × 121 × 245 mm


Click here to download the product Brief