Onkyo MC35TECH Executive Shelf System with 3 CD Changer (Discontinued by Manufacturer) 20 Watts per channel stereo with a wide frequency-response range of 10Hz to 50,000Hz (+0/-3 dB) 3 CD Player and Changer with selectable play modes Digitally-tuned AM/FM radio with up to 30 programmable station memories Two 2-Way Bass-Reflex speaker systems, each with a 5-1/4 Woofer and a 1 Tweeter, delivering a frequency-response of 50Hz to 35,000Hz Acoustic Presence Control