Boost up the sound quality of your audio/video system using the Optimus 3770 5.1-channel receiver. Sporting a frequency response ranging from 40 Hz to 20 kHz, this Optimus receiver effectively amplifies different sound frequencies and offers enhanced sound output. Experience theater-like surround sound effects in your living room, thanks to the Dolby Pro Logic support in the Optimus 3770 receiver. Moreover, this Optimus receiver is capable to deliver louder sound output, as it boasts total output capacity of 500 watts. Featuring digital-synthesized tuner with 30 presets, this 5.1-channel receiver allows you to preciously tune and listen to the favorite broadcasting stations. What’s more, this Optimus receiver is compatible with tape deck, turntable, CD player, and video monitor.