Coleman Audio LS3 Line Selector

Bidirectional Line Level Selector with 3-to-1 or 1-to-3 Operation
Coleman Audio LS3 Line Selector image 1
Coleman Audio LS3 Line Selector image 1
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Coleman Audio LS3 Line Selector
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Bidirectional Line Level Selector

The LS3 is a bidirectional line level selector. It can be used as a monitor selector, signal router, or as an alternate speaker selector. As a monitor source selector, a computer workstation, CD, and tape machine could be the three inputs feeding to the power amplifier or powered speakers for monitoring. As a signal router, one audio input can be sent to three separate places at the push of a button. As an alternate speaker selector, the input would come from a mixer or level control and feed three separate power amps or powered speakers; all speakers can be selected at the same time. The unit has passive switching, and all inputs and outputs are balanced with stereo 1/4" jacks.

Coleman Audio LS3 Features:
  • 3 switchable balanced stereo inputs to 1 balanced stereo output
  • 1 balanced stereo input to 3 switchable balanced stereo outputs
  • Passive switching
  • Dimensions: H 5 1/8" W 2 5/8" D 2 1/4"

Additional Media

Studio Monitor Buying Guide

Tech Specs

Input Channels 3
Output Channels 1
Analog Inputs 1 x 1/4" TRS
Analog Outputs 1 x 1/4" TRS
Form Factor Desktop
Height 5.125"
Width 2.625"
Depth 2.25"
Manufacturer Part Number LS3

Customer Reviews

Based on 19 reviews
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Problem solver

This does just what it says. Sturdy and well made. Works either way, one stereo in, three out or three stereo in, one out. Completely passive. I have two, one for D/A inputs and one for powered monitor outputs.
Music background: Veteran music pro

Perfect For Switching Sub On and Off

After trying the Radial MC3 and being extremely unhappy, I picked this up. It does exactly what it is supposed to...turns speakers on and off without affecting the volume or actual sound of the music. highly recommended.
Music background: Engineer/Mixer

This did the trick!

I was looking for an inexpensive, small and clean way of feeding a set of Dynaudio's from two different PC's. My SE, Ben R., suggested this over products costing 3x+ the amount. Built well, no noticeable noise or coloration added, this thing was well worth the money.

Built like a tank

It does exactly what it says, and is a great value. I have mine switching between two sets of monitors. This thing is super versatile though, I can think of a few other places where they might be helpful also. Every studio needs one (at least) one.

Simple and Perfect

I needed a passive three way splitter. This thing fit the bill. It is built solid and you can't beat it for the money, unless you are into DIY. Been using a few months and the connections are solid.
Music background: Full time consultant, songwriter, guitarist
See also: Monitor Switches, Coleman Audio, Coleman Audio Monitor Management