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Rectangular black metal box with four silver rotary volume knobs and a row of small selector switches on the front panel

Monoprice Inc.

Monoprice Dual Source 4-Channel A/B Speaker Selector With Volume Control

SKU CH-J5Q8-343DV

A dual-source, four-zone speaker selector with independent volume controls per source, handling up to 100 watts per channel across 20Hz to 20kHz and accepting 14AWG wire

  • Distributes two audio sources across four zones
  • Independent volume control for each source and zone
  • Handles up to 100 watts per channel
  • Full-range audio from 20Hz to 20kHz
  • Accepts speaker wire up to 14AWG at 8 ohms

Dual-Source Four-Zone Selector

The Monoprice MSV-4 is a dual-source four-zone speaker selector with independent volume controls for each source. It distributes audio from two amplifiers or receivers to four separate speaker pairs throughout a home. This allows different rooms to play different sources simultaneously. It is designed for homeowners building a whole-house audio system without a dedicated multi-zone receiver.

Replaces Basic Impedance Matching

The unit provides impedance matching that protects amplifiers from overload when driving multiple speaker pairs. It supports up to 100 watts per channel across a 20 to 20kHz frequency range. The jump is worth it when a standard receiver lacks zone outputs or when separate volume control per room is required. It removes the need for complex distribution networks in simpler installations.

Fits Standard Speaker Wiring

The selector accepts wire gauges up to 14 and maintains an 8-ohm load for the connected amplifiers. It sits between the sources and the in-wall speaker runs for each zone. Independent volume knobs free users from adjusting levels at the source component. The device requires no external power supply for its passive switching and volume functions.

Highlights

  • Distributes two audio sources across four zones
  • Independent volume control for each source and zone
  • Handles up to 100 watts per channel
  • Full-range audio from 20Hz to 20kHz
  • Accepts speaker wire up to 14AWG at 8 ohms

Specifications

No published specifications for this item yet.

Questions about this item

What speaker-wire gauge can the Monoprice MSV-4 terminals accept?

The selector accepts wire up to 14AWG, so use 14AWG or thicker cable for each zone connection.

How do you connect the two sources and four zones, and what step do people miss?

Wire each amplifier to the A and B source inputs, then run zone speaker wires to the four output pairs; the step often missed is engaging the impedance-matching jumpers so the combined load stays at 8 ohms.

What maintenance will the Monoprice MSV-4 need over time?

No scheduled maintenance is required; simply check terminal tightness and dust the vents occasionally, and replace any speaker wire that shows corrosion or fraying.

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