OSD Audio RSVC4 4-Zone Resistor Based Speaker Selector with Volume Control
The OSD Audio RSVC4 4-Zone Resistor Based Speaker Selector with Volume Control is a professional multi-room audio distribution controller designed to route sound from a single stereo amplifier or AV receiver to up to 4 pairs of speakers (8 speakers total) with independent zone volume attenuation. Equipped with built-in resistor-based impedance protection circuitry, the RSVC4 safely manages the electrical load to prevent amplifier overheating or overload when operating multiple zones simultaneously. Featuring individual rotary volume knobs, push-button zone on/off switches, removable Phoenix screw terminals accepting up to 14 AWG wire, and an all-metal steel chassis, it delivers reliable multi-room control for residential homes, restaurants, and retail spaces.
If you want to know how a 4-zone resistor-based speaker selector protects your amplifier from dangerous low-impedance overloads when powering multiple rooms, how independent rotary volume controls let you set different volume levels across indoor living areas and outdoor covered patios from a single receiver, or how removable Phoenix Euroblock connectors make multi-conductor speaker wire installation fast and clean, the OSD RSVC4 provides the ultimate centralized solution. Custom audio installers and homeowners choose the RSVC4 for its robust all-metal build, 80W RMS per channel power rating, and hassle-free passive operation.
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Multi-Room Audio Distribution with Independent 4-Zone Volume Control
The OSD Audio RSVC4 distributes high-fidelity stereo audio from a single stereo amplifier or AV receiver to up to 4 pairs of speakers (8 speakers total) across multiple listening zones. Featuring independent front-panel rotary volume controls for each individual zone, listeners can dial in whisper-quiet background audio in a home office or dining room while maintaining high-energy volume on a patio or living room entertaining space.
Built-In Resistor-Based Amplifier Impedance Protection
Engineered to safeguard valuable audio amplifiers from dangerous low-impedance overload, the RSVC4 utilizes a precision resistor-based impedance matching network. When playing any combination of speaker pairs or all 4 zones simultaneously, the internal circuitry safely manages the electrical load, ensuring total system impedance presented to the amplifier remains at a stable, safe 4 Ohms or higher without overheating or triggering protection shutdowns.
Individual Zone On/Off Push Buttons with Smooth Rotary Attenuation
Each listening zone features a dedicated push-button on/off power switch paired with a smooth-action 12-step rotary volume knob. This allows complete zone isolation without affecting neighboring rooms, giving homeowners, restaurant managers, and retail operators instantaneous control over where music plays without unplugging cables or adjusting amplifier gain stages.
Heavy-Duty Removable Phoenix Snap-In Screw Terminals
Installation is streamlined through heavy-duty removable Phoenix Euroblock snap-in screw terminals that accept up to 14-gauge (14 AWG) stranded speaker wire. Wire pairs can be pre-terminated, labeled, and securely screwed into the terminal blocks before plugging them directly into the rear panel, preventing accidental short circuits from stray wire strands in cramped AV cabinets.
Compact Low-Profile All-Metal Enclosure for Tabletop or Cabinet Mounting
Housed in a rugged, black all-metal steel chassis measuring just 2 inches tall, the RSVC4 provides exceptional durability and effective shielding against electromagnetic interference. Its low-profile tabletop footprint fits neatly onto audio equipment shelves, media consoles, or custom AV credenzas beside your primary receiver.
Specifications
| Speaker Selector Type | 4-Zone Resistor-Based Speaker Selector with Volume Controls |
| Number of Zones / Speaker Pairs | 4 Zones (Up to 4 Stereo Speaker Pairs / 8 Speakers Total) |
| Source Input | Single Stereo Amplifier or AV Receiver Input |
| Power Handling | 2 x 80 Watts RMS Continuous per Channel (200 Watts Max) |
| Speaker Impedance Compatibility | 8 Ohms per Speaker Pair |
| Amplifier Load Compatibility | Maintains Safe 4-Ohm to 8-Ohm Load to Amplifier |
| Impedance Protection | Internal Resistor-Based Impedance Management Circuitry |
| Volume Controls | 4 Front-Panel Smooth Rotary Attenuation Controls |
| Zone Switching | 4 Independent Push-Button Zone Selector Switches |
| Terminal Connector Type | Removable Phoenix Euroblock Snap-In Screw Terminals |
| Wire Gauge Compatibility | Accepts up to 14 AWG Stranded Speaker Wire |
| Chassis Construction | Heavy-Duty All-Metal Steel Enclosure (Black) |
| Dimensions (W x H x D) | 12.4 x 2.0 x 9.4 Inches (315 x 51 x 239 mm) |
| Unit Weight | 4.25 lbs (1.93 kg) |
| Manufacturer Warranty | 2-Year Limited Warranty |
In The Box Contents
- 1x OSD Audio RSVC4 4-Zone Resistor Based Speaker Selector with Volume Control
- 1x Set of Removable Phoenix Euroblock Screw Terminal Blocks
- 1x User Manual and Multi-Zone System Wiring Guide
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