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Monoprice 139067 SS-Pro 12 Speaker Selector - Dual Source, 300W — main product image
Monoprice 139067 SS-Pro 12 Speaker Selector - Dual Source, 300W
Monoprice 139067 SS-Pro 12 Speaker Selector - Dual Source, 300W
Monoprice 139067 SS-Pro 12 Speaker Selector - Dual Source, 300W
Monoprice 139067 SS-Pro 12 Speaker Selector - Dual Source, 300W
Monoprice 139067 SS-Pro 12 Speaker Selector - Dual Source, 300W
Monoprice

Monoprice 139067 SS-Pro 12 Speaker Selector - Dual Source, 300W

★★★★★3.8 (26 reviews)
10in300W

The Monoprice SS-Pro 12 lets you route two audio sources to up to 12 speaker zones with impedance-matched power distribution.

$175.99*$219.99Save 20%
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

The Monoprice SS-Pro 12 Speaker Selector is designed for audio enthusiasts and installers who need to distribute sound from up to two sources across as many as 12 separate speaker zones. Whether you're wiring a multi-room residential setup or outfitting a commercial space with distributed background music, the SS-Pro 12 provides a centralized control point with individual zone switching via front panel push-buttons. The dual-source A/B switch on the front panel makes it easy to toggle between two connected amplifiers or receivers without re-cabling.

At the heart of the SS-Pro 12 are its audiophile-grade impedance-matching transformers, which ensure safe power distribution across all connected speaker pairs. This is critical because running multiple speakers in parallel can drop impedance to dangerous levels for amplifiers — the SS-Pro 12's rear-panel rotary switches let you dial in the correct impedance setting for each zone. Rated at 300 watts peak per channel and equipped with removable snap-in connectors for clean wiring, this selector is built for reliability in permanent installations where consistent audio distribution matters.

Key Features

12-Zone speaker selector that allows you to connect up to 12 pairs of speakers or 12 listening zones and control each zone with front panel push-buttons.

Utilizes audiophile-grade impedance-matching transformers to safely distribute maximum power throughout your system.

Easy to use front panel switch to choose between sources.

Includes 6 shingle clips and 2 Spacers.

Turns on when at least 10in of sensor wire detects moisture and has a temperature of +39.2 degree F. Turns off at +44.6 degree F or no moisture is detected.

Specifications

Type
Dual Source Speaker Selector
Speaker Zones
Up to 12 pairs
Peak Power
300 Watts per channel
Source Selection
Front Panel A/B Switch
Impedance Matching
Audiophile-grade transformers with rear rotary switch
Connectors
Removable snap-in
Zone Control
Individual front panel push-buttons

Pros & Cons

👍 Pros

  • Supports up to 12 independent speaker zones from a single unit, ideal for whole-home or commercial audio
  • Dual-source input with a simple front panel A/B switch for quick source selection
  • Impedance-matching transformers protect your amplifier when driving multiple speaker pairs
  • Individual front panel push-buttons allow quick on/off control of each zone
  • Removable snap-in connectors simplify speaker wire installation and maintenance

👎 Cons

  • At 300 watts peak per channel, high-power setups with all 12 zones active may push the unit's limits
  • The rear panel rotary impedance switches require manual adjustment when changing speaker configurations
  • No built-in volume control per zone, so individual zone level must be managed at the speakers or with external controls
  • The large number of rear panel connections can make initial wiring setup time-consuming

Frequently Asked Questions

The SS-Pro 12 supports up to 12 pairs of speakers, each controllable as an independent listening zone from the front panel.
Yes, it is a dual-source selector with a front panel A/B switch that lets you choose between two connected audio sources.
Yes, it uses audiophile-grade impedance-matching transformers with a rotary switch on the rear panel, allowing safe power distribution across multiple speaker zones without overloading your amplifier.
The SS-Pro 12 handles up to 300 watts peak power per channel.
It uses removable snap-in connectors for easy and secure speaker wire hookup.

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