4x1 RCA L/R + 3.5mm Aux Bi-Directional Stereo Audio Switcher | 4 in 1 Out Passive A/B Analog Stereo Audio Switch Selector Box 1 in 4 Out Audio Splitter Only 1 of 4 Outports Works at a time

I have a complex setup with my PC, PS5, EQ, mixer, and DAC/Amps all connected together. I usually route it all to my headphones but recently picked up another external amp paired with some passive speakers so wanted a simple way to switch from headphones to speakers. This does the job with no issues. Sound quality remains the same to my ears. No buzzing or hissing. Solid connections and the box is solidly constructed. It doesn’t require power for it to work. You can have it set up to receive one audio input and then select up to four different outputs (one at a time). So if you want to output to speaker only you select a switch and if you want to output to headphone only you select another switch, which is how I have it setup. Or you can input four audio sources and output all of them to one set of speakers or headphones. Super easy to use and solid switch controls.

Worked great for my use case although I don't need it anymore so I don't use it. I was getting some kind of ground loop with the way I was hooking up my headphone amp to my powered speakers. I always had some kind of hum noise which was very apparent when nothing was playing. Also the headphone amp I had always outputted to both headphones and speakers at the same time with no way to choose between them. This allowed me to at the touch of a button be able to stop audio from going to my speaker when I don't want it to, while also eliminating the hum when I'm not using them. I like that its just a simple physical switch and doesn't need any kind of power to functions. But I may have considered something else if it came with a remote to do the switching so I could activate it from my couch. It's my only small gripe I had with it and probably would have increased the cost if it was included in so I guess this way you can save money. It is a small lightweight metal box with probably very little circuitry inside but I didn't feel like it was light enough that it would be pulled off my desk. Its a good value for the money in my opinion and I didn't notice any loss in sound quality or other issues when using this product. Its built well enough that I don't think anyone will have any issues with it.

Exactly what I was looking for. I needed a 3.5mm with RCA jacks and this fit perfectly. Everything functions as it should, the appearance is small in size so it doesn’t take up a lot of room. Connected very easily and is easy to switch between modes.

Seemed okay but I needed a pre amp to make cd player I just bought sound more fuller. So I returned it. But it does the job for cheap switcher.

This little box is exactly what I needed! I love that it has both RCA and 3.5mm inputs/outputs, which makes it super versatile. I’ve got my CD player, tape deck, turntable, and even an old-school iPod all hooked up at the same time. Switching between them is quick and smooth—no more plugging and unplugging cables every time I want to listen to something different. The build feels solid, and the sound quality is crystal clear with no noticeable loss or distortion. If you’ve got multiple audio sources and want a simple, reliable way to manage them, this switcher is perfect. Highly recommend!

I bought this to pair with my Douk mini amplifier. It allows me to switch from CD input to my portable digital music player without having to yank cords. This requires no power connection and doesn't seem to reduce the volume of the device being played.

When I finally got around to opening this it was rattling inside. The selector buttons won't stay put. Cheap quality.

I had been contemplating making a small switcher like this - probably a little simpler, actually - as there are few 1/8" TRS jack switchers out there at modest cost. But then I did another search on Amazon, and, lo and behold, this little jewel turns up! I'll start right off and note one minor item / gripe that is slightly different from the description: Those 1/8" / 3.5mm TRS jacks on the back are black, not "silver" color. This makes them hard to see in weak lighting situations, which are typical for some (and my) usage(s) this will see. In fact, I bought this item from this vendor and paid a bit more specifically because the 1/8" jacks were pictured as "silver". I may well mask them off and add carefully a little silver or white paint to their very outside ends. To this supplier, I would suggest going back to the original shiny plated metallic finish. A version of this with gold plated jacks would appeal to audiophiles and semi-pro users. Charge $25.00, hahaha. I popped the switcher open and construction looks good, but, the switches are definitely on the cheap side. (This from a person who many moons ago designed and built his own audio preamp with mercury wetted relays to handle the audio switching, so, my "complaint" is that it remains to be seen how this unit will hold up under semi-heavy use and time. On the flip side, better switches would cost more.) A semi-pro pro sound version would be interesting: Replace the RCA jacks with 1/4" jacks. (Things might get a little crowded.) A fully "pro sound" version would have to be larger, to accommodate XLR jacks. But at that point you likely have a nice little (or large!) mixer on hand anyway... Otherwise, all looks good, and versatility is great! It should not be hard to add small brackets to the left and right side for semi-permanent mounting or even wall mounting. As noted in the product info., the switcher can be "inverted" to provide a single input routable to any of 4 outputs. (I believe a version of this unit with labelling for such a usage is available -- seems like I saw it earlier. But, best of all, and not stated in the documentation or sales description is that each set of input (or output) jacks are in parallel with themselves. That is, for example, the <#1> input RCA jacks are in parallel with the <#1> input 1/8" / 3.5 mm jacks. And the output RCA jacks are in parallel with the output 1/8" / 3.5 mm jacks. This opens up all sorts of intriguing possibilities if your source can handle moderately low input impedances. That means the source has to have a little current capability (the old NE5532 / NE5534 IC audio chip with a 100 ohm resistor in series with its output will do famously). Plus, the source has to have a decent size coupling capacitor on its output, if you don't want attenuation of the really low, lows. Most any decent headphone output can handle this. NOW... you have a switching splitter, or maybe a "feedthrough switcher", or a "switching adapter (or maybe a splitting switcher?) One can take the signal at that <#1> RCA input (say, coming off your old CD player) and feed that signal UNSWITCHED, *out* via the <#1> 1/8" "input" jack to, say, your computer (provided your computer has a 1/8" line input), AND you have TWO switchable outputs of that <#1> signal available if desired @ the output jacks (the output RCA jack in parallel with the output 1/8" / 3.5 mm jack. 3 more inputs to go. Or you can reverse the whole thing. Or if you never have any other use for <#4>, it's input jacks are sitting there as a cable extender / adapter. All ya' gotta do is keep it all straight in your head, once it's hooked up! (Yeah, at almost 70 y/o, such things are a consideration for me - heh.) Further crafty possibilities could be created if one wants to fully dis-assemble the unit and start interrupting circuit board traces, but that's beyond the purview of this review (and will certainly void your warranty!) Have fun!! Update: The outside diameter of the screws in the sides of the switcher measures 2.84 mm. A "Chinese" M3?

Nicely finished, good price, does the job

This 4 way switch works great for my set up, very pleased with it. does not limit the sound which i like & the option of rca & 3.5 aux is nice to have. i have 3 laptop connected to this switch & it's working great so far.

I ordered this unit over many others as it has 3.5mm aux (headphone jack) as well as RCA. I wanted the flexibility but intended to mainly use the 3.5mm aux - nearly all the cables/devices I already had supported this. It worked fine for about a week before the main 3.5mm aux out started playing up (tried multiple cables to verify) and I had to change to RCA. I have now replaced all my cables to utilize RCA inputs/outputs which defeated the purpose of why I chose this unit. I would be very weary in recommending this unit if you intend on using the 3.5mm aux inputs/outputs. For now, the RCA seem to be working but I shouldn't have needed to change.

Been using this a while now, very good quality, no bleed over of sound, excellent quality product

Works as it should. Makes switching between units seamless and easy.