

🎧 Elevate your audio game—switch, compare, and conquer your soundscape!
The Nobsound Little Bear MC3 is a compact, passive 3-in-3-out audio selector and splitter that converts balanced XLR to unbalanced RCA signals and vice versa. Designed for professional and home audio setups, it features a high-quality rotary switch for seamless source and amplifier switching without signal degradation or noise. Supporting 2 XLR and 1 RCA inputs and outputs, it enables effortless A/B testing and routing with a durable, user-friendly design.
| ASIN | B07D7P7366 |
| Best Sellers Rank | #31,030 in Musical Instruments ( See Top 100 in Musical Instruments ) #36 in Recording Signal Converters |
| Customer Reviews | 4.5 4.5 out of 5 stars (134) |
| Date First Available | May 23, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.42 pounds |
| Item model number | JMQ375 |
| Manufacturer | Nobsound |
| Product Dimensions | 5.91 x 4.13 x 2.68 inches |
T**Y
Great RCA and RCA input to XLR and RCA output, NO clicks
Well made, make-before-switch so there is no click when switching, sturdy knob feel on switches. Excellent RCA connectors, Buying a second unit for a Professional Mix room without hesitation.
C**Y
Good quality 3 in 3 out balanced/RCA selector/router box.
This is just a simple source and output selector. I am using it to route input signal from my two DACS; a Topping D30 and (not pictured) SMSL SU8 to my various amps. I'm considering getting another 2 in 1 out so I can connect the output of 2 amps and do quick a/b comparisons. It takes up a lot of space because it has 8 balanced connections and 4 RCA connections on the back. Knobs feel sturdy enough. This is an entirely passive source/output selector so, aside from any potential signal degradation you might get from the quality of the internal wiring this should be a fundamentally neutral device. As far as I can tell it's transparent and has not degraded the sound quality at all and made it much simpler to route inputs to desired outputs. It's a light weight unit. It's not built like a tank but, unless you're extremely hard on things, this should last you a very long time, and because it's so simple in design it should be very user serviceable if one of the selector switches, or input connectors ever fails. You'd just have to be relatively handy with a soldering iron. Highly recommend.
J**K
Good value
Woks well and as intended. No bleed through that i can hear. Next upgrade will be a custom job from Mapletree audio at hundreds beyond the cost of this unit but with triple and maybe more features and 15x the price. Can’t compare with the simpleness and ease of use of this unit. If you need a simple source multiplier this should be a solid go-to for you. Excellent value.
P**N
Gets it done
Works well. No issues. Can't hear any cross talk. I would recommend this to anyone that needs the options this provides. I use it from multiple pre's to be able to switch between speakers. DAC stack, 7.1 pre-amp mains, DAW mains. Out to monitors, record in on the DAW and pre to loop back if needed. Just wish I could get a monitor selector that allows 3 sets {2 monitor pairs and sub} at the same time or separately that wasn't a Mackie big knob studio+ since I don't need all the other options.
J**Y
If you are serious about sound, this is excellent
I’m very happy with this device! I need to bounce back and forth between my work laptop and DAW computer and had been swapping cables and adapters depending on what I was doing. Some connections caused audio issues, not to mention it was a pain the butt to switch back and forth. I have two nice Yamaha monitors for video/audio projects and only use XLR cables to connect them for balanced clean sound. This Little Bear unit ABSOLUTELY maintains audio integrity and sounds significantly clearer than my previous adapter approach. I use the RCA input for my non-DAW computer (aux to RCA cable). And again, XLRs from the bear to my Yamahas. I use an audio interface for my DAW work which i connect via XLR. Friggen LOVE this. Thank you ONE! There aren’t many solutions like this out there! I have to assume any negative reviews are the result of not understanding differences between cable types (i.e., TRS vs TR vs XLR) and balanced vs unbalanced signals, because cables tend to look the same even though they are not.
J**R
Almost perfect.
I love that this is analog, no volume control; simple 3in / 3out audio switcher. What I didn't care for is that with the RCA in and out used, I was getting noises from my wireless mouse and keyboard played through the speakers. I tried all sorts of things to work around it. Using the same cables, without this device, it was quiet, so it seems like it's all about this device as the culprit. As long as the combination wasn't RCA+RCA, the problem didn't persist. So, I had to send it back.
S**A
exceeds my expectation!
Love the feature of multi-input and multi-output flexibility in such a small package. Material/build quality is great for the price. I was unsure if the switch will introduce noise/pop and am pleasantly satisfied with the fact that the noise level is very low and tolerable. It is a keeper for sure.
R**Z
A very versatile, simple and quality switchbox
Using in my studio to greatly expand my monitoring input possibilities. In my case: a turntable, CD player and 2nd AD-DA interface. I can send those either to my DAW or directly to my monitoring unit. Straight forward - great quality.
R**E
Fantastic for switching unbalanced to balanced or balanced to unbalanced converter I enjoyed the pure sound from sony tv to jbl powered stereo.
J**G
Er kan weinig aan dit apparaat misgaan. Ik gebruik het om te schakelen tussen twee gebalanceerde XLR inputs die naar een set actieve luidsprekers gaan. Als er al sprske is van degradatie van het geluid, dan kan ik het niet horen. Ik weet niet wat er gebeurt als.je van XLR naar RCA gaat, maar ik vermoed dat dit wel impact kan hebben. Beter soooet bij soort houden denk ik. Handog ding, want ik zou mog een extra paar actieve luidsprekers kunnen aansluiten ook. Voelt stevig aan, grote knoppen en het werkt naar behoren.
B**A
Wie baut man so einen passiven Umschalter? Die einfachste Bauart ist, einfach nur Pin mit Pin korrekt zu verbinden. Und das zumindest sauber über einen 4-Pol-3-fach-Drehschalter, damit symmetrisch stereo auch wirklich symmetrisch stereo bleibt. (vorweg: genau das ist hier der Fall!) Man könnte nun noch Eingangs- und/oder Ausgangsseitig DC-Filter in den Signalweg legen, um einem lauten Knacken vorzubeugen, wenn sich im Signalweg ein DC-Anteil befindet. Dieser hat wieder den Nachteil, dass hierbei eben ein Hochpass verbaut werden müsste, für den wirklich gute Bauteile das Ding hier deutlich teurer machen würden. Diesen findet man hier nicht vor. Zunächst hatte ich das Gerät über alle Wege durchgemessen. Rauschen, Frequenzgang und Klirrspektrum alle absolut unbeeinflusst. Dies nährte den Verdacht, dass hier wirklich nur kontaktiert wird. In dem Moment beschloss ich, dass ich es auf jeden Fall behalte, also kann ich es auch öffnen. Siehe da: Ja, mehr ist es nicht. Mit den benannten Vor und Nachteilen. Das meiste brauchbare Audio-Equipment filtert ja auch bereits am Ein- und Ausgang. Ein DC-Offset ist da nun nicht unbedingt zu erwarten. Und ein Knack bei laufendem Signal lässt sich eh nicht sinnvoll verhindern. Also: 5 Sterne, da hier alles richtig gemacht wurde. Eine "Umwandlung" im Sinne einer Symmetrierung von Cinch auf XLR findet natürlich nicht statt. Dafür bräuchte es Trafos mit entsprechendem klanglichen Einfluss. Aber es ist immer auf + sauber durchgeschaltet und bei symmetrischen Anschlüssen kommt eben - dazu. Funktioniert. Hat über Cinch natürlich entsprechend Pegelverlust und man braucht ein über Cinch eingespeistes Signal nicht versuchen über 50 m XLR-Kabel am Ausgang zu schicken, aber auch das ist völlig klar. 5 Sterne auch für Preis/Leistung, einfach da die Bauteile beim Bauelemente-Händler allein schon etwas mehr kosten würden, als dieses Gesamtpaket hier (ich wollte erst selbst was basteln, bevor ich das hier fand). Und ein technisch identisches Produkt aus europäischer Produktion kostet halt im mittleren dreistelligen Bereich. Obwohl es einfach nur Kontakte sind. Das Gehäuse ist aus Metall, die Buchsen sind gut (weiß nicht, ob das wirklich Neutrik ist, aber jedenfalls vernünftig), die Beschriftung zur Kostenersparnis nur ein Aufkleber. Das stört aber nicht. Wer hier behauptet, dass das Ding irgendeinen klanglichen Einfluss hätte, kann weiter seine Voodoo-Puppen pieksen. Es ist einfach nur ein elektronischer Kontakt. Ohne Einfluss. Punkt.
D**E
Volevo un controller per il mio studio, non mi serve un master volume e non ne volevo uno economico che entrerebbe a degradare il suono (servirebbe un bel volume bilanciato a step con resistenze ecc…), mi serviva mantenere bilanciati i miei monitor (per evitare interferenze che ci sono con cavi sbilanciati). Questo scatolotto costa poco, ha due bei manopoloni e non fa altro che switchare fra coppie di monitor e ingressi (io ho la daw su un ingresso ed un pre per giradischi su quello rca). Non avendo nulla oltre a questi contatti meccanici, non colora e non degrada. Less is better!
V**X
I have ONE turntable and TWO phono preamps (one single-ended and another XLR balanced). This switcher allows me to select the respective phono preamp very easily without having to swap cables between them. As phono signals are very low output, I rewired the internals with a higher quality PHONO cable as well for my intended purpose. For those who have a similar set-up, this is a convenient solution which I recommend without any significant loss in fidelity. I also recommend adding a star grounding point on the box to eradicate any inherent hum that may be present during phono playback. Note: If used with the provided original internal wiring, expect to experience a decline in fidelity when dealing with phono signals, and possibility of hum if a grounding point is not created.