ART CLEANBox Pro Dual Channel Level Converter

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.

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'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.

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.

A device intended to increase the voltage of a pre-out from your receiver. I can't think of a better use for this than to hook up a Pro AMP with a consumer HT Receiver for subwoofer use. Why? That Pro AMP will want a higher level of voltage before it will decide to do anything with it and your HT Receiver doesn't provide a good amount of voltage on the LFE Pre-Outs without running it super hot. Why don't you want to run the pre-outs at max? Well a few things can happen; 1 - can cause artifacts in the signal which can affect the sound, 2 - lower the lifespan of the pre-out and 3 - not be enough to drive the external AMP to max power. (#3 is the most important) Why use a Pro AMP? Cheap power for great performance AND most give you DSP (Hooray!). Now, consider this, DSP (Digital Signal Processing) IS important and these don't provide that but there are products that will provide signal boost and DSP capabilities. They are more expensive but at the same time a better solution than going Boosted Signal -> AMP w/DSP. For an introductory to setting up your HT, going with a CLEANBox Pro -> Pro AMP w/DSP is probably safer, easier and cheaper, maybe just not the best approach. Been using mine for almost 2 years now, honestly I forgot I had it till the other day when I had to move it. My major qualm is the form factor, I know car use was a consideration so smaller sizes are important but for HT use the size is somewhat a pain on initial set up. After that though its fine, still wish I could get it in a bigger box style. The uses for the CLEANBoxPro has been restated many times, figured I'd put in mine! Would I buy again? no, but that's not against the product itself, I just want something with DSP so I can put a bunch of power amps after it.

I like the class D amps because they are super-efficient, and they drive sub woofers extremely well. I have a class D, Crown XLS 2502 driving a set of Skar DDX15-D2 sub woofers. Even though the XLS series of Crown pro amps have RCAs in, using them only gives about 60% of the rated power. If one needs to run the Crown at full power from RCA cables as I did, I had to use an ART Cleanbox Pro. The Art Cleanbox Pro is a converter that makes home sound equipment’s connections compatible with pro-equipment. The cleanbox has two internal sections. One section converts balanced (XLR) to unbalanced (RCA), the other converts unbalanced to balanced. These sections cannot cross talk, but do share the boxes pre-amp gain controls. So for this to work properly, you have to run RCA cables from the theater amp’s pre-outs to the cleanbox, and XLR cables from the cleanbox to the pro amp. I am also using a Crown XLS 1002 as a mono block to drive another 500-watt sub. But in this case, the cleanbox is not needed, as 60% of 1100 watts is plenty enough power.