Features: Rockville TM150B Complete Powered Home Theater Tower Speaker System With Dual 10" Subs.Built in class A/B amplifier with audiophile grade sound quality. . Our built in amplifier features a quad amp design: Each driver features frequency specific independent amplifiers. The amplifier internal circuitry is the ST model # TDA7265. ST is a world famous brand. They make some of the most reliable and best quality circuitry in the world. This product is made with top of the line components from the ground up. Engineered by Roy from Rockville - These have unbelievable sound quality and incredible bass and highs! These also go crazy loud and do not distort even at max volume!. Can be controlled from the front panel or from the remote. Easily connect to your television through RCA or through the optical connection. Includes a beautiful fully functional remote control designed by Rockville designers!. Every Speaker in Production Undergoes a Computer Generated Sound Check Test to Ensure it Upholds to our Specifications and Standards . We use a "6Sigma" style Quality Assurance of Each Product (Long story short, each product will work perfectly as advertised for a long long time!).