ART CLEANBox Pro Dual Channel Level Converter (CLEANBOXPRO)

Works great

I'm using this unlike most people; I have some powered loudspeakers that use xlr cables and I wanted to connect them to my receiver. This is the product I found that works great for what I am doing. It took a little fine tuning but for $80ish this works great!

Excelente producto estoy usando en una emisora y realiza una limpieza en el audio excelente

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.

I bought this to connect an old AC3 decoder to my EV ZLX-15BT PA speakers. Right now I only have one but I plan to buy 2 more. The AC3 decoder has RCA outputs (6 of them, since AC3 is a protocol to carry surround sound). To get the best sound quality, I decided to try this since it is active and converts the unbalanced signal to a true balanced signal over standard XLR outputs. This gives the benefits that 1) I don't have to worry about the length of the cable from the CLEANBox and 2) since it is a dual channel converter, I can convert the front and rear signals together with one box (for each set of channels).The audio quality is great, and since I have an EV ELX200-18SP subwoofer I can attest that the CLEANBox does not affect the bass with any highpass filters and the midrange and treble come through clear and crisp.The only thing is, while the level knobs are silky and smooth, there is an imbalance in channel 1 and channel 2 volume that is quite noticeable at low levels. So if you have a hot signal and you don't need a high level output, the level knob will cause an imbalance between your stereo channels. Also, while CLEANBox is very rugged with a metal chassis and decent quality connectors, the power supply is nothing special and I think the price is a bit too high, so I'm knocking off a star.

I was wondering why my bridged amp was sounding like it had zero power. After looking this product up I understood I was not receiving the maximum wattage my amp was putting out because it was not receiving the correct max input! No I have to turn the volume down and have the correct dynamic range for my system! It sounds wonderful now. Low distortion, open sound stage, and wonderful dynamic range! Get it, you will not be disappointed!

I'm using this gadget between my yamaha receiver to a crown xli2500 to push a 12" car subwoofer. Now with the Art Cleanbox pro I get a better signal going to my amp and I can feel and see better excursion on the sub. Now it sounds like the amp is delivering more power, no doubt.

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.