Onkyo HT-S3900 5.1 Channel Home Theater Package (Open Box)

As to this system, it is very good, excellent sound at low price. The subwoofer is a 6" passive, meaning it is powered by the built-in amplifier (don't let that dissuade you! It is AWESOME!). It has Bluetooth, and many connections for a variety of situations. I have enjoyed mine for a few months now and have few complaints. One is the 1080/ARC capability. It didn't work for my Roku, so I had to forgo using one HDMI cord to provide sound and picture for the 4 HDMI outlets in the back. I had to go back to an optical audio cable and use the HDMI ports on my TV. The PDF guide does tell you that the HDMI ARC capabilities are not guaranteed to work in every situation, so that is warning in advance. It was no problem for me since I have plenty of HDMI ports on my smart TV. Also, keep in mind that if you do want to use the HDMI ARC to provide audio and other HDMI devices, your TV must have an HDMI/ARC port. Overall a nice system, attractive, and the sound is good. I listen to symphonic music, classical, so sound quality is important to me. This one provides that quality. Update (2/26/21). I LOVE this system! I went to Youtube and played a "video" with audio frequencies from 20 to 20,000 hz. The subwoofer proved capable of playing the lowest tones, and the audio spectrum was even up to and past 10Khz (I can't hear above 10Khz!). This is a remarkable system. I am a true audiophile and component stereo enthusiast (since 1970). I listen to classical, symphonic music. I have played the 1812 Overture (with cannon!), the Saint-Saens "Organ Symphony" which really shows off the bass abilities of one's system with a massive pipe organ in the final movement. The Onkyo comes through amazingly well. Highly recommended!