The DA30 is a 30-watt unit with coaxially mounted 10” low frequency and 1” high frequency drivers. It has two 1/4 inch phone jacks (Channel 1 and 2) plus the Stereo CD-IN RCA jacks (labelled CD in, which feels a little out of date to be honest). There are separate volume controls for each input, plus a master tone control section with bass and treble controls for fine-tuning the response of the amp to the particular room or stage.
The kick-back design ensures that the sound is pointing up at the drummer or whoever else needs that sound blasted in their face, while a sturdy front grill keeps the driver and tweeter safe from any actual kicking. Note that this is a mono amplifier: if you’re playing a digital drum kit onstage you’re probably going to want a nice focused mono signal rather than having a stereo signal coming at you and causing all sorts of weird phasing issues. There are plenty of other ways to use this amp: for keyboards, as a basic bass amp… I ran a wet signal from my Seymour Duncan Vapor Trail Analog Delay pedal into the DA30 so I could have a dry signal in my main amp and a wet one coming out of the other side of the room.
This is a very simple, roadworthy unit that doesn’t have a lot of extra bells and whistles, but is designed to give you a nice clear sound onstage. You shouldn’t expect it to make you sound better than you are but you can rely on it to make sure you’re hearing your playing nice and clearly no matter what horrors an unsympathetic house monitor is inflicting upon you.