The Russound SDB-4.1 puts room-by-room control of a 4-zone speaker system on one front panel. Two amplifier inputs are provided, and each speaker pair has its own A/B switch, so one room can listen to source A while another plays source B.
Every zone also has a dedicated volume knob and an on/off switch. Because the on/off switch is separate from the volume control, a room can be shut off and turned back on at the same listening level. Autoformers provide the impedance matching that keeps the amplifiers safe with many rooms active, and internal jumpers select the matching level for 4- or 8-ohm speakers. Volume is adjusted in 12 steps across 42 dB, and the unit is rated for 150 watts RMS continuous per channel. Speaker wiring lands on detachable, colour-coded snap connectors that accept up to 14 AWG cable, and printed room labels are included to identify each zone.
Key Features
- Per-zone volume, on/off and A/B source
- Two amplifier inputs
- Autoformer impedance matching (4 or 8 ohm)
- 12-step, 42 dB volume range
- Printed room labels included
Ideal Applications
Homes and small businesses with up to 4 rooms of speakers that want central volume and source control without installing wall-mounted volume controls in each room.
Compatibility
Works with conventional stereo amplifiers and receivers; not for 70V systems. Two separate amplifiers (or one dual-zone amplifier) are needed to use both A and B inputs. Amplifiers and speakers rated 4 to 8 ohms are supported; the autoformers ship set to 4X and can be re-jumpered to 2X, 4X or 8X using Russound's matching chart for the amplifier and speaker count. Any speaker pairs wired together must present at least 4 ohms. Russound covers speaker selectors with a 10-year limited warranty.