The Chase HTS-1 5-Channel Home Theater System is passive, which means it does not require any power to separate sound components to create the surround sound effect. Result: you actually get much better quality than Dolby Pro Logic systems. This system is in perfect condition. Note that it doesn't come with speakers. I have enjoyed this system for nearly 20 years and it never stopped amazing me. It is incredible how well it extracts the ambience in most recordings and movies. This device connects via high level output from your existing power amp. It has unprocessed right and left speaker level output for your front channels; speaker level output for rear channels (full range speakers are recommended). and there are line level output for center channel and rear channels for outboard amplification. There are two knobs in front - one for HT, Music and Rear selector and the other knob for rear/channel volume setting. The device will take some 10% of your amp's power and direct it to the rear channels which is enough for ambient sounds.
Takes little space : Height: 2 inches Width: 14 inches Depth: 7.75 inches