I am selling a pair of Sumiko S.9 subs that I bought new 6 months ago. I recently got full range speakers so these must go. The stock sub sounds wonderfully musical compared to any other sub I have owned. They are very similar to REL T-9's with a higher powered amp. Changing the Neutrik Speakon cable to Chord, and then Audience Ohno was a revelation that is easily noticeable. The stock cable, 1 1/2 m Chord, and 2m Audience ($400) are all included. Then I upgraded the fuses to Synergistic Black fuses ($119 each) and the difference in speed, dynamics and resolution was profound. I used these with KEF LS50's, and then Focal Sopra No.1 monitors. You will not be able to beat this performance unless you spend significantly more money. I prefer to sell them as a pair, but may consider splitting them up. The price listed is for a single sub. I will ship UPS ground anywhere in the continental US for $50 per sub. The subs are in great condition but the piano black finish scratches easily so there are some light scratches on the top of each sub. I accept PayPal or USPS money order.