The Sub10 Mk2 from ADAM Audio is a powerful subwoofer designed to extend the low-frequency capabilities of any near or midfield studio monitoring. A 200W Ice Power amp drives a large (50mm) voice-coil. This amp stays cool as it uses PWM technology in both the amp and the power supply sections, producing greater than 90% overall efficiency. It can handle its maximum power without danger to the electronics or to the driver. The Sub10 Mk2 powered subwoofer houses an excellent 10" woofer, capable of a frequency response of 25Hz-150Hz. The ADAM Audio Sub10 Mk2 works with a new down-firing bass reflex tube that, due to its shape and size, avoids unnecessary ventilation noise. For larger rooms or higher levels you can chain as many ADAM subs together as necessary. The Sub10 Mk2 studio subwoofer has balanced (XLR) and unbalanced (RCA) in and output connectors, and numerous controls to adapt to different room acoustics and requirements. The Sub10 MK2 also has a level control from -60dB to +6dB, a phase 180 degree switch, a variable upper barrier frequency (50-150 Hz), and a switchable 85Hz high-pass filter for the satellite output. In addition, there is a 'signal-on/continuous' switch, which provides the option of automatic power up whenever the subwoofer receives signals/automatic power-off after 15 minutes of no signal.The Sub10 Mk2 is an ideal match for ADAM monitors such as the P series or the S1A, S2A, S2.5A, or S3A studio monitors. In any small to medium sized control room, they guarantee powerful yet precise bass response.