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rolls MX51S Mini Mix II 2 1/4 & 3 RCA Mixer
- For mixing a microphone XLR input with up to three RCA input signals^Four channels total^Line / Headphone output level
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This item rolls MX51S Mini Mix II 2 1/4 & 3 RCA Mixer
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|Item Dimensions||1.25 x 3 x 5 in||2.25 x 4.08 x 1.83 in||5 x 5 x 5 in||10.39 x 10.98 x 2.8 in||3.3 x 6 x 2 in||6.5 x 3.3 x 11.3 in|
|Item Weight||2 lbs||0.82 lb||2 lbs||1.98 lbs||0.9 lb||2.2 lbs|
The MX51s Mini Mix 2 is small four-channel mixer with individual volume controls, and a headphone / line output. The unit has one XLR input along with an 1/8” input and 3 sets of stereo RCA inputs. It has enough gain and output level to connect to a power amplifier, with either RCA or 1/8” jacks. The MX51s is powered by an included ROLLS PS27 12 VDC adapter.
Top customer reviews
First, the build quality is astounding. It weighs a lot for it's size 'cuz it's the real deal - not Chinese crap that cuts every corner possible. It's a steel case that's powder-coated. The pots (knobs) feel like silk and there's zero noise from them. The RCA jacks are gold plated.
This thing sounds amazing and is so perfect for my use - it sits below one of my four screens and when the phone rings, it's no longer a mad fumble to turn down the music.
Now a couple of things I encountered while shopping for this: Some of the photos show units that don't say Made in the U.S.A. I insist on buying American so I was concerned. Mine does say it's Made in the U.S.A. so I'm guessing that's just an odd photo. Second, the Rolls web site says something about mono on an output or something. I could never figure it out. I figured I'd return it if it was mono. The instructions it comes with says that it's true stereo through and through. Of course, that doesn't apply to the mic input. BTW, I bought the version with the mic in case I wanted to create tutorials and webinars on my computer.
The only thing not mentioned anywhere is the headphone/line output. When I plugged in headphones, the rear RCA outputs cut the signal in half (I was surprised it didn't mute it) so you still hear sound in the room. The headphone volume is then controlled not my a separate pot, but by the channel pots. I didn't try the headphone out as a line out so I don't know if it senses line out and produces a level output un-affected by the pots. I've seen a lot of other devices do that so I'm guessing it does.
If you need to mix three sources and optionally, a mic, you can't beat this unit.
The only reason I didn't give this device five stars is one quirk: when the two channels you are mixing are not set to the exact same volume level, a small amount of noise/hissing is introduced. I don't think this is super noticable when there is actual sound being played by one of the signals, but when the inputs are silent, the hissing is noticeable. When they are set to the same volume, there is no noise and it is perfectly silent. This is independent of the actual volume level you are using - they just need to be at the same level. This doesn't affect my usage, since I keep them at the same volume level. I will do some more testing and possibly update this review.
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.