Feature:
4 separate amps with individual controls.

Quality:
Nice metal box...the knobs feel solid.

Desirability:
not sexy just works

Sound:
This baby cranks!!! Wanted to feed my headphones from my mixer rather than my 200 watt amp in my rack, but the output was took low for my "too long" in biz ears"....the little Behringer amp did the trick for 20 bucks! Fairly clean, and loud.

Ease of Use:
Very simple to use

Support:
no experience

Feature:
Simple device

Quality:
Have had no problems so far, It's built pretty tough although it just rests on a desktop for recording so I haven't really tested it in rougher conditions than the home studio. I am also really gentle on all my gear so I don't foresee any major problems with this box.

Value:
We bought this amplifier mainly because of the drummer he can now actually hear everything the guitars are doing and hits the timing dead on like he should so that makes it worth quite a bit to us. The other neat feature is we can hook up multiple headphones now also, so while I am mixing tracks the rest of my bandmates can grab a pair a headphones and listen to the mixdown as well.

Sound:
I got this thing as we(the band) needed it because during recording our drummer had a hard time hearing the guitar/bass tracks(we're using an fostex x-16) and therefore had a hard time keeping tempo, He was never really of by much, but as a musician I am sure you know already it doesn't take much to ruin a good tune by being just a hair off tempo.

Ease of Use:
Just plug in your headphones and crank the volume up, Doesn't get much easier than that.

Support:
Haven't needed any support.

Overall:
It's perfect for what we needed for. If you happen to record your rough drafts & demos on old school equipment like us this will help you out for sure. Heck, even if you use more modern equipment it doesn't hurt to have a volume boost for your headphones. It also seems to bring out some good definition in the sound as well. Overall I'd say buy one even if you think you may not need it. It's defiently a useful tool to have hanging around just in case.

Feature:
no feature. it does one thing. adds more power to the headphones to give louder/ sound. but ask yourself, is louder better? HELL YEAH IT IS!

Quality:
alloy casing. average weight for its size. if i dropped it i wouldn't be concerned because its built VERY sturdy.

Value:
c'mon dude 20 bucks for a mini amp that can make your ears bleed?! FTW!

Desirability:
i wanted to see how much better it could improve some of my head phones.

Sound:
The sound is "LOUDER". it takes ANY one of my state of the art headphones and increases the volume much more than before. The sound is going to still vary depending on your headphones. I own: regular ipod earbuds, cheap no brand head phones, Sennheiser 280HD, Logitech NCH, Bose Over ear, and Ultrasone HFI700. ipod earbuds: with the amp, the sound was just louder, bleh. just pretend turning up the volume on the earphones until they blow. a bit distorted after turning them to high. cheap headphones: theres no brand. they sound like crap. with the amp they sounded much better. but to me the sound was still pretty bad. Sennheiser 280HD: These are awesome cans to begin with and without the amp these are my favorite headphones because its high in quality and its cheap! They produce amazing highs and mids but lack a punchy bass. with the amp, they made these headphones with a much punchier bass but the highs sometimes were to high. nothing is distorted but just SUPER LOUD!!! which is a good thing because all you have to do is make sure your source volume is somewhat lower and bring the amp power higher. overall it made an improvement with my headphones but when it comes down to it. I can live without the amp with these headphones since these are almost perfect for what they are. Logitech NCH: These logitech head phones have decent amount of bass. the highs and mids are average but with the amp it was almost a world of a difference. i tried listening to music with these but the bass was just too much after awhile but then i put on a movie and it was almost insane! i think these would be the perfect movie headphone when paired with this amp because it makes the highs and mids better and the bass much more explosive. so when you're watching a scene where theres a huge explosion you can hear the sharpness and the earthshaking bass. ok maybe earthshaking is wAAAAAy exaggerated but thats okay because its still quite noticeable. overall, the amp is a must with these headphones. Bose Over ear: I know a lot of audiophiles wouldnt say a lot about bose because there are much better stuff out there like Grado, AKG, Sennheiser, etc. but i really like these headphone because its probably the most well balanced headphones I've ever listen too. Its has good highs and mids while having a very VERY thumping bass. perfect for any music genre. these headphones become very powerful when connected to this amp. since these headphones are so well balanced everything becomes enhanced in every way. Again, the amp is a must accessory with my bose headphone. Ultrasone HFI700: This headphone is my pride and joy. No one touches these or puts them on but me. music just sounds different with these headphones. when i say different, i mean it in the best way as possible. The sound can not be explained. it just cant. no matter what i say, no matter what i type, no matter how hard i try nothing will be able to describe how good these cans are. Now as i paired it with the amplifier the headphone became a live.

Ease of Use:
its so easy even you can do it. = )

Support:
the best support is no support. if i didnt have to pick up the phone to call then everything is alllllllllll good.

Overall:
I'm completely satisfied with this product. Just understand that this amp will improve the sound by making your content LOUDER. since i own only 1 earbud i really can't be much help to other owners who perfer earbuds. in my own test, i found that the ipod earbuds is not needed. adjusting the volume knob on the amp to high will cause the earphones to get distorted very easily. As for headphones, it is a must. whether you like listening to rock, death metal, country, classical, blues, hiphop or watch dvds it will make your experience much more enjoyable. I'm going to find away to hook this up to XBOX 360 and play gears of war on my headphones i bet it would be amazing as well.

Feature:
Simple and easy to use. Most all of my connections are 3.5mm, so had to find adaptors, but would rather have 1/4 phone as they seem to hold up longer. Have had problems in other equipment with 3.5mm jacks breaking.

Value:
I would have paid the price for a single channel amp. This has 4.

Desirability:
This product is not sexy. It is a practical design that gets the job done.

Sound:
Hum and noise are non-existant. I use the amp at low volume levels for late night TV viewing. The bass is tight and the highs are smooth. I am very happy with my purchase.

Ease of Use:
Plug it in and go. Didn't need a manual.

Support:
Did not have to contact company.

Overall:
This will last me a very long time. I might consider buying a second one for the car so the kids can watch a dvd when we travel.

Desirability:
Could you build one that has 1/8th inch input/output. Again, I see a great motorcycle potential as is and even better with modifications. The modifications should not cost $55.00 but you could ask that much more for an "improved" product.

Sound:
I ride a motorcycle and have three input devices. Radar detector (mono), XM radio (stereo needs amplified), could have GPS mono voice. The mixer/amp worked great on the motorcycle and the individual volume levels for each input was usful on set up. During driving, the individual devices (except XM) could be adjusted. If radar went off in city, its volume could be turned down.

Feature:
I give features 7 beacuse although it is incredibly ease to maintain and operate, it does not have the simplest or most functional feature, the ON/Off switch. You basically have to keep it plugged in and theres a glowing green light that gets kind of annoying if its on all the time. so leave it plugged in, or bend over to plug it in every time.

Quality:
very light, almost too light. but straight, and to the point. i had to put four little rubber feet on the bottom so it didnt scratch my other gear and so i didnt have to hold it with both hands to plug something in/out.

Value:
cannot be beat for the price! Period! I would have paid AT LEAST twice what it costs if i were to guess.

Desirability:
Sex appeal?? hardly. its a rigid little metal box with pointy corners and knobs sticking out...but if your into that sort of thing, thats a whole other story...

Sound:
I give sound a ten because i cant find anything wrong with it. seems clear and loud. no complaints.

Ease of Use:
Could not be easier to use. plug and go! no instructions needed!!

Support:
havent needed any...

Overall:
Overall had to give 9. it functions well and cannot be beat for the price. but could not give a 10 for lack of the ON/OFF switch. other than that. its excellent.

Feature:
This has the basic features you need to split and individually amp a signal 4 times. It lacks 1/8" in/out, but that's solved using an adapter.

Quality:
This unit looks and works fine. The knobs feel a little chintzy, but not too bad. However, I have other Behringer equipment that feels a lot sturdier than this, so this is certainly not their shining product.

Value:
Impedance issues aside, this is a very good deal.

Desirability:
It's functional, but not sexy.

Sound:
This product sounds fine if you're simply hooking headphones directly into the unit. In fact, it sounds quite good. However, it DOES NOT WORK over long distances (25' - 50') of low gauge wire, such as a snake. I believe this is due to impedance issues.

Ease of Use:
Doesn't get any easier than this.

Overall:
The unit sounds good, but only if you're jacking a pair of headphones directly into it. It doesn't work over long runs of low gauge wire (such as a snake), making it unsuitable for many professional/semi-pro studios. I returned the unit and bought an ART HeadAmp4 - WELL WORTH THE EXTRA $20. The ART is much better built, the knobs feel nicer, it's stackable, and it has 1/8" and 1/4" jacks. If you have a pro studio, go with the ART. If you've got a small home studio and don't intend to expand, the Behringer will probably work well for you.

Feature:
This cost $19.99 - so don't expect any features besides individual volume controls. It is perfect for what it is.

Quality:
Very simple metal box, single LED, 4 knobs. All seems pretty solid. I've had no trouble at all using it so far. I was skeptical what I would get for so low a price, but I feel like this is a value!

Value:
Seems like a great value for the price!

Desirability:
This is not a sexy item. This is a "gets the job done, and done well on the cheap" type of item.

Sound:
My home studio set up is on a tight budget, and I just needed several singers to monitor tracks while laying down vocals. There seems to be plenty of power (volume) in the headphones with no discernable distortion even at high volumes.

Ease of Use:
Plug it in and go!

Support:
N/A

Overall:
This will do for me until the time comes when I am sure I want to invest more money into a more professional home studio. When I do, Behringer will be my first choice.

Quality:
The two units I have had both had bad out puts.

Sound:
The channels that worked were clean, but the first one I received had a dead left channel on the #1 output. I returned it and they sent me another which had dead left channel on #2 out put. Exchanged it for an ART unit which seems to be working very well.