I needed a small unit for a moving instrument. I bought one of these. Had sound go in and out so took it to be repaired (for the price of the mixer). At same time technician managed to get stuck xlr plug out. Played a gig when sometimes crackling and signal in and out again. Got 2nd unit based on reviews. Now have again had in and out signal. Problem is when XLR condenser mic is in (using phantom power) signal is too hot if I go over 1 (out of 10).

Very nice. I use it to mix audio from three computers. I don't use the XLR input channel, but maybe later.

Been using this for a year and still love it! I have 4 devices plugged up to my headphones and speakers at the same time consuming my streaming PC setup.

it has a high pitch buzz when plugged in.

I used it once and then stored. Getting ready to use for another gig and the AC adapter intermittently works. I bought this Nov 2017.

Good with better quality than the original Mini Mix but also suffers from bad whine from more than two inputs. Highly recommend buying a ground loop isolator to stop any whine coming out of it.

I bought this mixer so I could add a microphone to my PC audio source to have a nicely balanced combined audio output for an event I was hosting. The restaurant I was connecting to their home receiver had no way to achieve this... so I wanted an inexpensive mixer that was functional and good quality. Well, this unit worked SO WELL that the owner of the restaurant said 34;how much did you pay for it??? I don't want to give it back!!!34; What happened was that their Pandora business audio device was connected to their receiver and the audio sounded distorted.. it wasn't a very warm musical sound. They thought it was the amp or the speakers. NO! It wasn't! The minute we put this in, it sounded like there was a breath of life put into the audio!!! The amp could be turned up and the audio input turned down and it sounded SO MUCH BETTER. Having said that, I had to buy this one for myself as the first one was given to the restaurant!!!!! Seriously, this is one amazing little mixers with tons of capabilities. XLR input for a balanced microphone input (pro microphone!) it will supply phantom power!!! and the rest is pretty straight forward. RCA jacks for the rest of the inputs and the mixer is very clean - high SNR signal-to-noise ratio. If you've gotten this far and are in the market for a small mixer.... BUY THIS MIXER!!!

Works perfectly, quality built, made in my own country. I have nothing but great things to say about all of my Rolls products. Great company with an obvious passion for their products. I have the Mix Mate 3 (RM-69) and I'm planning on getting many other Rolls devices for my home server rack (the radio tuner, mp3/sd unit, distribution amplifier). I don't need any of this because I'm only running a TV/computer audio setup, so it's all overkill in my situation. But it's nice knowing the product's quality is line with the most professional grade in the industry. And that the product comes from a company that knows their stuff and has been around for decades. I'll gladly pay the extra few bucks for this. Disregard the fake 1-star reviews from cheap competitors if you see them. Rolls products are made to last, which is sadly the exact opposite of most products in today's market which are made to malfunction at a random point in time.

I can't discern any degradation in sound quality through this mixer. Works great for my simple karaoke setup (Chromecast mixed with a mic).

This is a good little mixer. Built sturdy. I would buy it again.

Took some messing with the dials only certain spots don't hiss and pop shame because when it works it works fine.

Rolls MX51S. Produces lots of hiss and a little hum even with nothing plugged into any inputs. I have never owned any audio equipment that adds so much hiss.

Cannot use. Did not come with AC adapter.

Absolutely perfect for what I needed for my stereo set-up at school as a music teacher.

No noise, hiss, hum or cracks. This preamp is perfect for mixing four strereo channels to one. I use it to get audio from my computer, bluetooth receiver and television to one stereo set. The system is always on so I don't have push any buttons to get sound from my sources. Perfect.

Works flawlessly! And love the option to insert a 3.534; cable and XLR in the back.

great stereo mixer. I have this thing hooked up to my game console and my pc. must buy RCA to adapter if your equipment does not have RCA out.

Awesome RCA mixer , if you want to mix an XLR mic input with 3 rca audio channels this is the perfect unit, i use this to mix vocals with karaoke and feed to a stereo system

Pretty good mixer if you are looking to add extra inputs to your board or already existing mixer. If you raise the levels past half way it gets distorted. We typically keep it a bit below half way and it works out great.

If you're looking for a quality, compact stereo mixer to combine multiple audio sources and output to a single pair of headphones or speakers, this device works perfectly. Measuring roughly 5 inches by 3 inches, its construction is solid and surprisingly made in the USA. All of the ports feature a nice and tight fit and the knobs are silky smooth. It's powered by a power adapter which is included. It has four separate channel inputs and two output options. Channel 1 is an XLR input with phantom power option (which you can turn on/off). Channel 2 input is via RCA or 3.5mm. Channels 3 and 4's input are RCA. Output is via RCA or 3.5mm. There are more than enough ways you can set this up depending on your devices and needs. If you need to use 3.5mm, either as an input or output, you can simply buy a 3.5mm to RCA cable adapter. Some reviews complain about static, hissing, or lowered volume; I have not encountered any of these issues under normal use. As long as you are using quality cables and your source output devices aren't cheap, no audio issues should be encountered. I can easily control each channel's volume independently with no loss in audio quality. Turning the knob all the way down will completely mute the source and turning it up has more than ample volume (although this may vary a bit depending on the quality of your output device). The only actual hissing I can hear (using headphones) is when you get near max volume on the knob when all other channels are silent. At the volumes you encounter the hissing at, you would blow your eardrums out. Under normal use, you don't hear it at all. There are obviously several ways you can hook this up. For reference, I am using it to connect the audio from my PC and the audio from my game consoles (PS4 and Switch) and have it all output to my headphones. In my case, the game consoles are hooked up to a Denon A/V receiver and I am using the headphone output from it to connect to the stereo mixer. For the PC audio, I am simply using the front 3.5mm output and have it connected to the stereo mixer. From the stereo mixer, I have the output audio plug into an external headphone amplifier which then finally outputs it to my headphones. My headphone amplifier definitely helps with overall volume, but even without it, the stereo mixer has plenty of power to output enough volume even to my higher ohm headphones from Sennheiser and AKG. Even hitting about halfway on the knob gets too loud and about a quarter of the way is good enough for normal use. With this particular setup, I can now get game sounds and if needed, I can stream music from my PC at the same time. Or I can use voice chat on the PC instead of using Playstation's party chat or the Nintendo Switch's currently horrible (non-existent) chat system. And of course if I just want one audio source, then I can simply turn down the knob on the stereo mixer to mute it completely. All in all, this is an excellent compact stereo mixer which makes life easier if you have a setup requiring multiple audio sources outputting to a single headphone/speaker setup at the same time. It works well as somewhat of an audio switcher as well without actually having to switch inputs or cables around. If this sounds like what you need, I wouldn't hesitate to recommend this product.