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OSD SLS-300

In-wall slider volume control

Item # 452SLS300W

OSD's SLS-300 is a great way to make quick volume adjustments without having to touch your amplifier's volume knob.

OSD's SLS-300 is a great way to make quick volume adjustments without having to touch your amplifier's volume knob.

In stock
$51.99

About the OSD SLS-300

Slide your way to rocking out

OSD's SLS300 is a clean-looking in-wall volume control that offers convenient, hiss-free operation. This slider-style volume control is perfect for custom whole-house audio installations. It hooks up to your amplifier using speaker wire and distributes audio signals to your speakers. There are quick connect Phoenix terminals near the front of the unit that make hooking up a new pair of speakers or disconnecting an existing pair easy.  

Slide your way to rocking out

OSD's SLS300 is a clean-looking in-wall volume control that offers convenient, hiss-free operation. This slider-style volume control is perfect for custom whole-house audio installations. It hooks up to your amplifier using speaker wire and distributes audio signals to your speakers. There are quick connect Phoenix terminals near the front of the unit that make hooking up a new pair of speakers or disconnecting an existing pair easy.  

Drive up to 8 pairs of speakers safely

This volume control can handle up to a whopping eight pairs of speakers at once without a speaker selector thanks to its built-in impedance matching. That means your amplifier will stay safe even if you're pushing sixteen speakers at once. If you have no need for its impedance matching, just leave the default jumper setting at 1X and play away.

READ LESS

Product highlights:

  • power handling: up to 150 watts per channel RMS (300 watts total)
  • 12-step control, 52 dB maximum attenuation
  • selectable impedance matching (1/2X, 4X, and 8X) allows support for up to eight pairs of speakers
    • can be used as non-impedance matching volume control if jumper is left on 1X
  • mounts to any standard single-gang junction box (not included)
  • quick connect terminals accept up to 14-gauge wire
  • decora-style wall plate and snap-on color insert for quick and easy color changes
  • dimensions (measured by Crutchfield): 3"W x 4-3/4"H x 3-3/8"D
  • warranty: 5 years
  • Our 60-day money-back guarantee
  • MFR # SLS300

What's in the box:

  • In-Wall volume control
  • 2-Piece decora cover
  • 2 Short screws
  • 2 Long screws
  • Installation Guide

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More details on the OSD SLS-300

Stacey B.

Product Research

Features

In-Wall Volume Control: The OSD Audio SLS300 is an in-wall volume control that connects between the speaker-level output of your receiver, amplifier, or speaker selector and a pair of loudspeakers. The SLS300 provides control of speaker volume in a remote location from away your receiver or amplifier, along the wall. The SLS300 is built with precision electronics to provide low distortion and a ruler flat frequency response.

150W RMS/300W Peak: The SLS300 in-wall volume control can handle up to 150 Watts (RMS) / 300 Watts (Peak) per channel with a frequency response of 20-20kHz and minimal bass roll-off.

Impedance Matching: The SLS300 features built-in impedance matching, which enables more pairs of speakers to be connected to an amplifier than the amp could normally accommodate. You can magnify the speakers' impedance by a factor of two, four, or eight, allowing you to connect up to eight pair of speakers (16 total speakers) to a single amplifier or receiver. A slider-switch on the back side on the volume control lets you set the impedance factor to 2x, 4x, or 8x (this will need to be done prior to final installation of the in-wall volume control). The volume control also has a non-impedance matching option (1x) to accommodate a single pair of speakers for optimum fidelity.

Using 8-Ohm Compatible Amplifier
Number Of Speakers 1 Pair 2 Pair 3 Pair 4 Pair 5 Pair 6 Pair 7 Pair 8 Pair
Ohm Rating 8-Ohm 4-ohm 8-Ohm 4-ohm 8-Ohm 4-ohm 8-Ohm 4-ohm 8-Ohm 8-Ohm 8-Ohm 8-Ohm
Switch Setting 1/2x 1/2x 1/2x 4x 4x 8x 4x 8x 8x 8x 8x 8x
Using 4-Ohm Compatible Amplifier
Number Of Speakers 1 Pair 2 Pair 3 Pair 4 Pair 5 Pair 6 Pair 7 Pair 8 Pair
Ohm Rating 8-Ohm 4-ohm 8-Ohm 4-ohm 8-Ohm 4-ohm 8-Ohm 4-ohm 8-Ohm 4-Ohm 8-Ohm 4-Ohm 8-Ohm 4-Ohm 8-Ohm 4-Ohm
Switch Setting 1/2x 1/2x 1/2x 1/2x 1/2x 4x 1/2x 4x 4x 8x 4x 8x 4x 8x 4x 8x

Note: To prevent from overloading and damaging your receiver or amplifier, the Impedance Matching switch must be set correctly to match the impedance of the speaker system to a level equal to or greater than the impedance of the amplifier.

12-Step Slider Control: The OSD Audio SLS300 utilizes a 12-step linear slider control for a wide range of listening volumes and a total attenuation of 52 dB (Max).

Phoenix-Style Speaker Terminals: The SLS300 in-wall volume control is outfitted with removable input and output phoenix-style connectors to connect your speaker wire (up to 14 AWG). The phoenix-style connectors screw down on the speaker wire for a secure and tight connection. Make sure to use "CL" in-wall rated speaker wire.

Note: Be sure not to reverse the amplifier or speaker connections, because damage to the amplifier could result.

Single-Gang Box Installation: The OSD Audio SLS300 installs in your wall using a standard single-gang junction box (not included and sold separately). It requires 2.9375" of mounting depth. The included 2-piece decora cover plate (white) hides the gang box and mounting screws. Additional cover plates are available in Almond, Black, Bone, or Brown (all sold separately).

Note: The SLS300 is designed for indoor use only and should not be used outdoors.

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