Used in two different applications.
1. Stereo DI for my keyboard rig. Thought there might be trouble because it has no ground lift, but so far, so good!
2. Preamp/EQ for two acoustic guitars live. Definitely brought more depth, though not necesarilly tube "warmth" to the sound. Still, a nice piece at an absolute bargain price.

Great for what I payed for. I expected a less quality sounding mic pre, but it proved me wrong.

I've done a bit more research on this device other then reading the reviews on this site. Several complaints have been that it does not produce that "tube distortion" sound when cranked up. Alot of people seem to think that the little tube shown in the front window is just there to fool you into thinking that it actually DOES something other then look pretty. But these same people admit that it lives up to it's name "ultragain" due it's very clean output. For me, I would definately take advantage of it's low-cut, but maybe not it's other eq (unless I'm cutting EQ). So, even after some bad reviews of this, I still get the feeling that it is a great buy.

Feature:
Have not really messed with this yet.. just using it as a mic preamp for now.

Quality:
Havent really gone outside of RODE, OR MACKIE.. but i figured ill give this a try because of the price.. for the price.. DEFF! got the best sound. VERY GOOD QUALITY.

Value:
u cant get a nicer mic preamp for this price! great quality for the price.. hit me up if you need a sample of the vocals i get from it.

Desirability:
good additon to the rack.. nice basic. hi-tech look.. good quality, nice style.

Sound:
Has a nice sound.. makes vocals sound Fuller, and when mixed down, blends in nice with the beat. i have not used it for anything other than a mic preamp.. but once set right makes good sounding, crisp vocals.

Support:
havent tryed this yet.

Overall:
mos deff got the best out of my $$ got it for $120 with shipping, easy setup, great sound. hoping this will be a good additon to studio.

Feature:
I originally bought for the DI/splitter function and as front end for Alesis HD24XR. Lots of I/O connections.

Quality:
Build quality is actually pretty good but it's apparent the bean counters didn't let Behringer's engineers do what they wanted to do with this unit.

Value:
For rookie sound engineers this will be one of those pieces they are happy with until they get something better and realize the problems they had were not due to them. It's, at best, Ok for home recording but unusable for live unless you know your signal source very, very well.

Desirability:
Yeah it looks nice. Dig the lit buttons.

Sound:
Sounds OK when not clipping but this unit has insufficient headroom for live performance. Change singers after it is trimmed and you may not like the outcome if the next guy is a little louder. +10dBu is not enough input range. Noise floor is acceptable when used individually but when used in groups the power supply noise is additive being in phase. This can be dealt with by throwing the odd unit out of phase but that is not always practical.

Support:
Haven't need to deal with this yet. Web site is good.

Overall:
Not quite what I was hoping for. I will dissect one and see if it can be made better but my guess is that will take major surgery. I'm looking forward to buying a trio of octal preamps or design my own to replace these but now I have a better idea what I need. I'm over the "tube" mystique. I need a preamp with at least 16dBu of input capability.

A great warm tube, two-channel mic preamp at a rock-bottom price. Plus, it makes bass and acoustic and electric guitars sound great.

It has long been known that a recording can be no better than the weakest link of the chain. More often than not, bands will invest thousands of dollars in great equipment, buy an excellent digital home recording console, and try to get by with cheap or inappropriate mics and/or preamps.

I have no really major complaints; more like personal preferences. For example, I would pay full price for a unit like this with
1) A headphone jack.
2) A pair of backlit, analog, retro-style VU meters.
3) A built-in spring reverb or other reverb unit; or some effects loop capability to facilitate the maximum functionality of this unit.

In summary, I find the Ultragain Pro to be a steal for the price. Some of the more famous brand one-channel tube preamps cost the same price for only channel and with much less flexibility in sound output.

And they both use the same preamp tube.

The 2200 is top-of-the-line quality and rugged durability for home recording and stage work--it's got more quality than you'll ever need untill you step into the big, professional studios and super-expensive equipment. But at that point you should stop and think about what it was that got you there.

Feature:
The lo cut feature was very useful.

Sound:
I've used a few different low priced mic preamps and this one sounds the best by far! Vocals sound very crisp. However, when I used unbalanced cables to output to my computer I could hear a very distinct hum that brought the noise floor way up. Balanced cables never gave me that problem, though.

Feature:
Great features, until they quit. EQ in one is extremely noisey. My other one overheated outdoors and just quits once its warmed up.

Quality:
I really reaaly like behringer products. This, however, does not get my vote. Signal POPs loud with eq in/out buttons, 48V buttons, line/mic buttons. One button stopped latching, hardly ever used. Unit is not vented, and self-overheated.

Value:
As a DI its probably great. Inability to hold up is poor.

Sound:
If you don't need alot of gain, and you don't use the eq, this unit is clean, clean, clean. very breathy, crystal sound, but not harsh...just accurate. Moderate to heavy gain introduces hiss and humm to an unacceptable, i.e., can't use it, level.

Ease of Use:
easy enuf to use, until they develop problems.

Overall:
replaced with presonus tubepre.

Feature:
As far as I can tell this thing is amazing.

Quality:
Good stuff. I've used it for about 9 months now on different gigs and hasn't let me down yet!

Value:
What can I say?

Sound:
Amazing! Really livened up the signal of my lead vocals.

Support:
Haven't needed support.

Overall:
This is one fine piece of equipment. It has really brought out everything that I could hope for in our vocals. That's all we've used it for so I can't speak for the DI function of using with a line in function. I would recommend it to anyone that asked.