This is a 30 Watt drum monitor that is loud enough for home practice, rehearsal and smaller jamming sessions or gigs. The punchy, crystal clear sound is produced by a 10 inch woofer with a 3 inch dual concentric Tweeter. It has a dedicated stereo drum channel and an AUX input. The Aux input has its own volume control and allows you to play with external audio equipment like a CD or MP3 Player or even a bass guitar. The AP30 is designed and built espically for drum monitoring, it has excellent Frequency response and a 3-band equalizer (Bass, Middle and Treble).