The DB series of amplifiers has been with us since our inception over a decade ago. It has undergone development over that time to present today as a reliable and great sounding way to add high performance amplification to your car without excessive cost. Firstly, it has terminals and connectors that you would associate with a more expensive unit, which along with the included (UK designed!) instructions makes installation easy and extends service life even when swapped between vehicles. Carefully designed and custom screen printed controls make setup easier and the amplifier comes printed with a host of helpful tips even on the chassis. This is a compact and versatile little amplifier - its perfect for running a pair of speakers or a little subwoofer. The high level inputs are a welcome addition to the 2.1 as they allow easier installation into a wider range of vehicles without the purchase of noise prone adaptors.