The Whirlwind IMP2 is a direct input box that has two 1/4 inch inputs and an XLR output.  It is an analog piece of gear and is not rack mountable as it is a stomp box.  There is a switch on the side of the box for grounding, which comes in handy quite often. 



UTILIZATION

The make up of the Whirlwind IMP2 is extremely basic and easy to follow.  Even those with no experience with direct input boxes should be able to figure out how to use it.  It is as easy to use as any other simple direct input box that is out there as it has quite basic connections and features.  Since the set up of the Whirlwind IMP2 is so easy, a manual isn't necessary to have around.


SOUND QUALITY

Generally, the Whirlwind IMP2 has a really solid sound.  I mostly use it to record digital keyboards and bass guitar and it works and sounds great for these applications.  It is a very capable DI box and will work for just about anything that you would want to use a direct input for.  It doesn't color the sound at all and definitely depicts and accurate portrayal of the signal you are feeding it.  While there are a few DI boxes that I like better than the Whirlwind IMP2, there aren't that many that I do like better and most of them cost much more than this would.  The Whirlwind IMP2 is a really good sounding DI box overall and don't have too many complaints about the sound quality.


OVERALL OPINION

I've been using the Whirlwind IMP2 DI box for about three or four years and it is always a pleasure to use these.  Even though they aren't the best DI boxes in the world, they do the job fine at a very reasonable price.  They are built well and are definitely reliable in make up and structure.  Overall, I would definitley recommend checking out the Whirlwind IMP2 if you are looking for a nice DI box at a great price.