Little Bear MC102 Mini Audio Switcher, 2-Way 3.5mm AUX Stereo Passive Selector, AB Switch Box Splitter for PC/Player/Headphone/Amplifier/Speaker

This works well as a passive switch and includes a volume knob useful to lower volume (but not increase). There are other brands where engaging the mute button causes hum, but in my system, this design adds no hum (though if you already have hum, it won't remove it).I am using this to switch inputs to a subwoofer and am glad that the cables can all attach to the rear though there is a front jack which when used switches off the rear middle jack. In my system, it doesn't make any electrical switching noises, the volume control is not scratchy either. It is visually interesting, a little bit SteamPunk in appearance though it's not very large and in my circumstances, not very noticeable.If you need such a switch, this could be a good choice. It's inexpensive, well made, and works well. It doesn't include any cables so you may want to order some cables along with the device according to need.

Nobsound Little Bear MC102 Mini 2(1)-in-1(2)-Out 3.5mm Stereo Audio Switch..... :This switch is fantastic! I initially bought a small 1in 2 out A/B switch from another manufacturer, but it was small and very lightweight. The pull of the cables would move it and flip it around. This one doesn’t do that! It is much smaller than I imagined it from the photos - it’s about the size of a deck of cards. It also has no outer case which I love, aesthetically but that means it’s still pretty lightweight and possibly susceptible to dust problems. It isn’t moving around now that I put the included rubber feet on it, but I might still add a small piece of flat steel to the bottom just to make it feel better.Another problem I had with the other switch is that the contacts got dirty and every time it would move around, I would get this horrible crackling and of course the 60 Hz hum. So far this one feels solid.The design is thoughtful insofar as you can use it as a 1x2 OR a 2X1 and the Jack in the front is bidirectional.I love the look of the open frame. I just hope it doesn’t become a dust problem and therefore a noise problem.I am using this to switch between active speakers and headphones. It works perfectly. And it allowed me to free up a different volume controller I was using. It also has a mute button which is nice.Good buy.

I had this for 6 years. It worked fine until, a few months ago, I got this hissing noise. Whenever I move the device, it crackles and pops. I guess it gave up the ghost, too bad.

I'm using an MC102 with a single set of stereo speakers to allow selection of two computers as sound sources. It's working fine for me. I set the MC102's volume knob at maximum, then set my computers' volume controls as desired. I can then use the MC102's knob for a quick volume reduction when needed (about 1/4 turn from "normal listening" to "barely audible"), or use the mute button if needed. In either case, I don't have to bother with which computer I'm listening to or how (in?)convenient its volume and mute controls may be.Mounting Hint: The lower screw heads are somewhat shorter than the thickness of a pair of 3M Command picture hanging strips. So, two pair of the small size strips (NOTE: check seller & listing to avoid international shipping AFTER you select your quantity, AKA "Size Name", on the Amazon page) allow convenient mounting to almost any flat surface. I've got mine mounted vertically, on the side of a computer stand. It's light enough so you might even be able to mount it upside down underneath a shelf, though that's a NONrecommended use of Command products (they hold well in shear, but tend to slowly give way to tension, so beware).Usage Hint: The open-frame construction of the MC102 has a secret advantage. I can see the button positions (looking in through the side) from angles that block view of the face of the switch. So, I selected my cabling connections to the MC102 mnemonically: when the A/B switch button is more to my left, the computer more to my left is connected to my speakers. Likewise, button more rightward connects the computer more to my right. I can also see whether mute is engaged (button bottom more inboard of circuit board) or released (button bottom nearly even with circuit board).Another Usage Hint: The dual IN/OUT jacks on the MC102 are not in parallel. Using the one across from the A and B jacks cuts off the one between the A and B jacks, so the "far" jack is the one to use for headphones if you want to cut off speakers whenever you use headphones.

I needed a headphone switcher to change between my phone and computer audio at work, and this was the only one that had the options I was looking for. Overall, it works fine: I can use the buttons to change between A and B channels, and the mute button is a great feature.The only issue I have is that the volume knob is essentially useless. Full volume is fine and the audio is clear, but the slightest turn drastically reduces the volume. The volume also lowers unevenly -- when lowering the volume, the left channel volume is quieter than the right channel. Lowering the volume again makes the right channel more quiet than the left channel.Once the volume in both channels is the same, there is absolutely no notable change in volume, from the 4-o'clock position until the 8 o'clock position on the knob. The volume gets very quiet quickly, stays the same level until the volume is almost at zero, and then drastically reduces from very quiet to silence.It would almost be better if the volume knob wasn't there at all. I read a few other reviews and tried using the switch on the front if the switcher, but that did not help and I'm do not want to solder anything just to get this to work properly. Not sure if this would fix the issue, but maybe Nobsound should change the volume pot from an exponential taper rather to a linear one?Overall, this is a good item, but I plan to use it only at maximum volume and change the volume on the devices it is connected to.