2-Way RCA Stereo Audio Switch Input Signal Source Switcher Selector Splitter Box（2 in 1 Out / 1 in 2 Out）-RC21

I use this to switch between 2 different sources - CD player output and TV audio output, to shared speakers. I was a bit skeptical from reading the negative reviews. But didn’t have any problem - no humming sound, the mute button actually works, the volume control nob works too, the switching works perfectly (even during “hot switching” when both sources are active). Pleasantly surprised. It was a good buy, solved my problem.

Works amazingly

Works as expected.

Solid. Volume knob works. No complaints. Didnt notice any coloration. Great value, looks good. Reversiblity is a plus.

Works no feed back

Cheap construction. Worked OK for a few months then suddenly stopped working - no sound output at all. At first, I thought the problem was with the sound input that I was using but I switched the input to the other sound source and there was no sound from it either. The probability of both sound sources failing simultaneously is virtually zero so I replaced this POS with a very old A/B switch that I bought from Radio Shack many years ago. Turns out that both sound sources work fine. The problem was this A/B switch. I bought this because it was cheap and I figured that an A/B switch is a pretty simple piece of technology so no need to buy a more expensive one. As soon as it arrived and I saw the cheap construction I suspected it wouldn't last. I was right. Don't buy it!

Helpful in setting up my recording studio.

Poor isolation- the input channels bleed into each other so you still hear both sources when you only want one. Seems to be because the ground is common and not switched as the other reviewer mentioned. Would have been otherwise great. edit- Adding 2 stars, realizing that switching grounds would make for a more expensive design beyond a DPDT switch, and has its own complications as far as timing. Instead, I added a ground loop isolator ( https://a.co/d/4Fv8bu2 ) on my "loudest" input and and together all is good.

Muito bom, serviu para utilizar meu subwoofer em dois equipamentos distintos, evidentemente, não ao mesmo tempo e sem risco de algum tipo de curto. Justamente o motivo da compra. Fiz o mesmo com as caixas acústicas, só que com outro produto adequado para elas. Assim, utilizo um mesmo conjunto de caixas e subwoofer em dois equipamentos distintos: um HomeTheater Onkyo para filmes e, em um Amplificador estéreo Denon para ouvir musicas.

Works great and does just what it says on the tin. Easy to install and use, no noticeable impact on sound quality.

Very good product.Very useful if you want to switch over two RCA set ups.Good quality product working efficiently as I expected?

Prodotto perfetto e molta serietà

Premium built, functions great as per description