100% functional. I have been the proud owner of this sub since 2005. It is a BEAST. I love it and it pains me to let it go, but I no longer have the space for this caliber of home theater. This is a dual 15 sub with one side powered and the other a passive radiator. Basically a clever way to get more woofer surface area on a small footprint. That said, this is a large speaker...22 x 18.5 x 19 to be exact. This is a single Sub solution (period). I have the original box but this is at least 80 pounds and will have to ship via pallet/freight. Includes power cord and Y-cable as pictured. *Note: The translucent box picture is for reference/demonstration only. Here is some legacy info from Klipsch: Reference Series powered subwoofers shatter your expectations for deep driving bass by playing louder and going deeper than significantly larger designs creating the most dramatic intense bass youve ever heard or felt. Designed from the ground up for class-leading room-filling low-frequency performance the RSW-15 is sonically cosmetically and technologically matched to the Reference Series. Low-level inputs that also operate as an LFE input (for compatibility with 5.1 digital sound formats) and an adjustable low-pass crossover allow you to configure the subwoofer to your rooms acoustics. The easy-to-reach side-mounted volume control makes for simple setup and convenient level adjustments between music and movie sources.The RSW-15 surpasses the performance of a conventional 21 single-driver subwoofer through intelligent engineering. Pairing a heart-throbbing 15 rear-firing Cerametallic™ active driver with a 3-inch voice coil and 30-pound motor assembly with a 15 front-firing passive radiator gives you more surface area than a 21 subwoofer in a much smaller footprint.Powered by a high-output 2400w BASH® digital high-efficiency hybrid amplifier the drivers deliver earthshaking sound without detail-robbing distortion. The RSW-15 is available in only a 120 volt version and comes in furniture-grade medium cherry or jet ash wood veneers.

Klipsch Reference RF-83 RC-64 - all in Cherry. RF-83 x2RC-64 I can provide more detailed pictures for those interested. If interested, let me know know where you are located, and we can try to figure out how best to get them to you. Thanks for looking.