The Radio Shack RCA SA-155 amplifier is a home entertainment system. It lets you simultaneously connect up to four audio devices such as a DVD player, a record turntable, a radio, and a tape player for playback as well as recording. The RCA stereo mini amplifier is extremely compact with dimensions of 6.4x23.6x17.5 cm. If you have a good set of stereo or surround speakers, you can complement it with a Radio Shack RCA SA-155 amplifier. By boosting the signal quality from your original audio source such as the radio, this RCA stereo mini amplifier enhances your listening experience. This home entertainment system competently does the work of a full-sized amplifier system. With a frequency response of 20-25,000 Hz, the Radio Shack RCA SA-155 amplifier ramps up the effect of ordinary music to include deep, chest-thumping bass, realistic, mid-range voices, and thrilling trebles.