Massive Audio's commitment to �Performance� in it's NEW 2009 �DB Series� Amplifiers is the result of 10 diligent years of the pursuit, of the true balance between �Quality and Value�. Massive Audio has never settled for status quo audio and is consistently exploring new current technologies. That is why ALL Massive Audio amplifiers are CEA 2006 compliant! �Massive Quality�! Massive Audio �DB� amplifiers employ N - Channel circuitry which yields over 85% in efficiency. �Massive Value� Each model features EZ Link circuitry allowing 2 amps to easily link together as Master and Slave for upgrading power output and system flexibility. �Massive Performance� �DB Series� D Class Mono Block Amplifiers use unique bass enhancement circuit Massive Bass Kompressor™, this proprietary circuit allows low frequency extension without the distortion that usually accompanies it. �DB Series� amps incorporate oversized nickel plated connectors, a port for optional remote bass gain control and sensitive 4 way protection system. These units boast 24 Db LP X Over and all utilize an adjustable sub harmonic LP filter. These amps will enable enthusiasts to assemble a high performance system at a relatively low cost with high a value. Massive Audio �DB Series� Amplifiers come with anodized brushed aluminum heat sinks in �Raven Black� or �Billet Silver� and feature soft blue illuminated centers with the Massive Audio Logo.