ART CLEANBox Pro Dual Channel Level Converter

I was dealing with a frustrating audio issue where my signal levels didn’t match and I was getting unwanted noise and distortion when connecting my equipment. No amount of gain adjustment fixed it—the signal was either too weak or noisy. The ART CLEANBox Pro completely solved the problem. As soon as I installed it, the signal was clean, properly leveled, and free of hum and distortion. The dual-channel design is perfect for stereo setups, and the level controls make it easy to dial everything in exactly where it needs to be. This unit does exactly what it’s supposed to do: converts signal levels cleanly and reliably. Solid build, simple setup, and immediate results. If you’re struggling with mismatched audio levels or noise in your system, this is the fix. Highly recommended.

Great converter, works perfectly. I'm using it for subs that I'm running through a couple of Crown XLS-1000s (1,100 watts at 4 ohms in bridged mono, baby). I haven't noticed any noise (hard to hear with subs, but even so), and the controls are simple and easy to understand. Being able to adjust the line level to match my other gear while leaving the gain alone on the amps has been great. It's built like a tank (this thing would survive on the road with real pro gear, I'm confident). It is a reasonable value for something made this nicely and looks pretty decent. It certainly doesn't have the aesthetic appeal of vintage brushed aluminum gear, but it's not the ugliest thing I've seen in a stereo setup. Overall, I hope I don't have to buy another one, but I'm glad I got this one.

Made a huge difference!!! Works great !! Changing the unbalanced audio from my av receiver preouts into balanced audio going into a qsc 1450 powering a pair of 3 way 18inch pa speakers! Highly recommend!!

I have a very large subwoofer (Dayton Ultimax 2, 18 inch) and a pro audio amp (Crown 2502 bridged), without this, the unbalanced signal from my AVR wasn't strong enough for my amp. This changed that and made everything sound clean and tight. This is a must buy if youre making your own sub with a big amp. Runs cool and has a small footprint! Unbalanced Rca to MiniDSP to balanced XLR to the amp, amp wired to the sub.

I'm using to connect a CD player(RCA) to a mixer(XLR). Seems to work ok, but even with my mixer preamps both set to 0, I had to keep the levels for the left side at 5-10% and the right at about 50% to have consistent levels. For what it is, I feel it should be a little less expensive, and the design is a bit dated, but it seems to work well and that's what's most important.

Ideal solution to match the RCA output of my consumer Receiver to the pro XLR input of my studio gear. Built like a tank, but fits in a tight space. Works well with -ZERO- noise.

I needed this unit to resolve an issue with a long cable run of around 30 feet that was picking up hum and interference along the way: I was feeding the left and right channels audio output of an OPPO 205 blu-ray player to the inputs of a Marantz preamp. Unfortunately, the Marantz tube-based preamp does not have balanced inputs, only unbalanced RCA level inputs, so I couldn't take advantage of the OPPO's balanced outputs. And unfortunately, I had to place the Marantz far from the OPPO. Using the unbalanced outputs of the OPPO and the long cable run resulted in picking up significant hum from other cables running parallel to the unbalanced RCA cable between the OPPO and the Marantz. One obvious solution was to place both components in close proximity to avoid the long cable run altogether, but unfortunately that is not possible. The ART CLEANBoxPro solved the problem completely: I ran a pair of shielded mic cables from the balanced outputs on the OPPO player into the ART CLEANBoxPro positioned right at the Marantz preamp then used the unbalanced output on the ART to feed into the Marantz's unbalanced RCA inputs - it completely cleared up the hum and interference issues. Problem solved. However, be aware that the ART inserts a significant thump when powered on so you may want to turn it on first before any power amps are turned on to avoid the thump, and reverse the turn off procedure when turning the equipment off. Other than that issue, the ART is an excellent tool to solve a particular problem.

Estava meio cético quanto ao funcionamento e se iria realmente anular os ruidos em volume alto. Me surpriendi pois alem de eliminar totalmente o ruido, deixou o sinal bem mais alto e melhorou muito a dinamica da música, oque não acontecia antes, mesmo com o volume bem alto. Você não precisa gastar varios dolares a mais para resolver seu problema de estrutura de ganho. Este produto ja resolve, com um preço dentro da realidade.

... aber was ist es überhaupt? Was könnte das Gerät noch? Ich hatte ein Gerät gesucht, mit dem ich Sound (vom Rechner) auf meinen digitalen Recorder aufnehmen kann. Unbalanced > Balanced. Die einschlägigen Websites empfinde ich als unseriös. Das Aufnehmen funktioniert prima - ich bin sehr zufrieden! Keine Nebengeräusche oder Brummen. Aber ansonsten ... muss ich mich in die weiteren Fähigkeiten leider noch einarbeiten.

Before buying this little box of tricks I had a big problem with hum and distortion. I was tying to connect my home cinema amp to a Behringer inuke 3000 power amp. But the power amp lacked an RCA input and the cinema amp lacked a balanced output. So I used a phono to 1/4" jack plug . This just made a load of hum through the subwoofers. So after reading other peoples reviews I bought the Art cleanbox. And wow what a little box of tricks it is. No more hum and I mean none, and the correct signal level now going into the power amp.

Great, glad I purchased. Woke up my sub/amp

It did exactly what the literature said it would do