Acoustic Research AR-1 High Resolution Series Floorstanding SpeakersAcoustic Research AR-1 High Resolution Series Floorstanding Speakers are the top of the line of the series. For a reason! They provide incredible performance for both music and movies. Fully working! Have cosmetic damage to the rubber parts in front (as shown), does not affect sound. Highly sought after and super rare. High resolution is verified on my high resolution system. They feature kick-ass powered Sunfire subwoofers, that have auto power on feature (auto-off when idle). Huge and super heavy. ?he subwoofers designed by Bob Carver. Subwoofers have adjustable cutoff frequency, which in a way works like a woofer level adjustment. For people with small rooms like mine, and who maybe might find two woofers turned on too much bass, I suggest to keep one of the speakers plugged in. That completely solved the problem for me. FYI: I am not a bass head :) FYI: tweeters are double-dome type, and they have a vertical line. It is not a damage. Cross-posted. Super large and heavy.