OSD Audio 300W in Wall Volume Control Impedance Matching for Home Speakers, Rotary Knob White SVC300

This volume control works perfectly. I replaced my 19 year old volume control that was making a distortion sound and is outside on my patio. This one was the same dimensions exactly so it fit right in the receptacle. The connectors are clearly marked input and output and are removable so you can make your connections easily and then connect them up to the unit. It also comes with three color knobs and cover to match your decor. Very satisfied as my sound is back to high fidelity. The instructions were clear also. Highly recommend.

I decided to replace my previous knob volume control (based on impedance matching) after one of the amplifier's channel of my Onkyo Receiver didn't work anymore, and I suspect that the culprit was the inductive coupling. So I decide to replace it by this resistive type, and this one, works perfect. One of the features I like is that has full volume at one end (direct connection, no resistors), meanwhile on the other end, the last step is disconnected (fully isolation of speakers), for great control. It comes with three different colors of covers and knobs to match your taste. It was easy to install, replacement was straightforward. Inputs/outputs on the device are well labeled and the screw connectors make it fast work, connectors also can be detached from the knob control, for easier cable hookup. Product seems of excellent quality. Overall, Recommended.Review made by Handyman

Purchased twice!Very simple to install ! Work perfect!

Works well. Inputs/outputs little bigger than other models I have used making it a bit easier to wire. Also came with 2 other different knob and cover plate color options which is nice

What I liked1. It came with different color face plates - wasn't a separate purchase2. The input and output wiring blocks were different colors - great aide to preventing miswire the volume control.3. it works!What I didn't like1. the wiring blocks once installed put the wires in towards the center of the volume control pressed up against the transformer creating a 90 degree angle to get the wires to clear the cut in mud ring. This puts strain on the wires to the wiring block, as well as strain on the wiring block to the mounting pins.2. the exposed circuit board. this is potentially a serious issue if your installing in a commercial environment that have metal mud rings. Definitely not coolWhat I'm on the fence aboutThe quality of the electronics is good, the nob and potentiometer doesn't feel like quality. But then again these aren't Niles or Russound and come in a 1/4 of the price. You get what you pay for.

I'm running Klipsch LaScala speakers along with Heresy speakers. If you know these speakers you realize the volume from the LaScalas will be substantially greater. So I used this volume control to help equalize the sound. Much less expensive than getting another amp! I was concerned about distortion and any sound degradation, but to my surprise there was none.

Easy installation. The wire terminals are removable and are the exact same as my previous volume controls. which made the swap quick by simply unplugging the input and output terminals and plugging them into the new speaker volume control. They also have an adjustable impedance selection, make sure you set this up correctly for your driver amp before install the switch plate. The switch comes with a really good install instruction sheet as well.

I installed 6 of these. Each one was only controlling one speaker so I only used one channel. One of the speakers didn't work and when I switched the wires on that controller to the other channel it worked. Besides that they seem nice. They fit well in a remodel low voltage ring.