PYLE-PRO Premium Direct Injection Audio Box - Passive DI Unit Hum Eliminator w/ Input Attenuator to Connect Guitar & Bass - 1/4 Inch Impedance Transformer Connector to Balanced & Unbalanced XLR-PDC22 , Black

I've been very happy with these. They are quite economical, and work well. They sound is clean. I'm regularly using with both a guitar, and with a Hi-Z drum module output. I have occasionally used to hooking up a regular computer sound output to the mixer. It worked well for this too.

I have experienced only good things with this box over the 2 years I have gigged with it! Even the owner/sound-man of the local pub wants to get some for his stage after seeing mine! So far (knock on wood), flawless! And the sound quality seems just fine...

So this is a good product for a decent price if you know what it is you're getting. What this is, is a passive direct box with nothing but a transformer to match impiedance between XLR balanced and 1/4" unbalanced. As such a few things to keep in mind are that this is not an amplifier, it has no active powered electronics inside. Also there is some inherent loss in any transformer, so the signal coming out may not be quite as strong as the signal going in. If you're looking for a lossless direct box with low impiedance, then you will want an active direct box with operational amplifiers and powered circuits. This is not on of those. But having said that, it does a fairly good job and is built like a brick ####-house. It has some serious weight to it, and if it fails as a proper direct box for you it can certainly be used as a theft deterrent device. Seriously though, good little unit. Since there is no active electronics there is little to no chance of inducing extra noise or hum. It does have some attenuation resistors (meaning it can make loud things quieter) for if you are feeding something with higher volume like a speaker output into something that's expecting lower volume like a microphone input. It also has the ability to do ground lift, if you're getting ground loop hum. (And if you don't know what that is, simply nod and act impressed.) All in all I rated it with 4 stars because as long as you know what you're getting, its a great little unit. But just be sure you do some reading on the differences between active and passive direct boxes. Happy Hunting!

Arrived as described. Worked well!

It seems to do exactly what i need it to do, without breaking the bank. "i will update in the future if i have any issues.

I use a both the dual and single models to eliminate hum in live performance.

1 star to 3 One of the inputs a 1/4" female plug will not hold contact with any cords! I have sent a return request and am awaiting the reply! The company did not reply to my return request. I think due to the fact I didn't register it on their web site, I saw an add on Facebook and complained on the post,, A guy popped up their and said he would fix the problem, Asked me to register it and he sent another one! These are cheap and seem to have problems with QC but they do work well and are quite as heck.... So now I have two one I need to fix....LOL

The only downside? The metal (but NOT plastic!) enclosure is a bit flimsy. It hit cement one day and got a little ding. Bummer. Plastic might have cracked. I got a dinged corner. But other than that? Flawless. Good sound, plenty of bells and whistles, and most importantly for a gigging keyboardist: STEREO! For the money, it's astoundingly good. And that metal enclosure? I wouldn't take it on a world tour, but it's perfect for the gigging weekend warrior like me. Highly recommended.