from what I can tell the speaker and receiver seem well engineer with a nice feature set , but there be a ridiculous flaw in the design of what connect they . the receptacle on the back of the receiver that receive the speaker cable be proprietary . each pair of speaker wire be attach to a special plug that fit into one of these receptacle . with regard to the speaker proper , if one want to extend a speaker wire , one presumably have to splice -lrb- use electrical tape and soldering or twist I guess -rrb- speaker wire to the naked speaker end of the speaker cable . or , one can go to ebay and spend a small fortune on new cable with the weird 4.2 mm connector , which weird connector you pay excessively for , obviously . but the situation with the subwoofer be even more hopeless . the speaker cable to the subwoofer be permanently attach to the subwoofer . and it look just as cheaply make as the other speaker wire -lrb- thin and from they color I be guess aluminum -rrb- and be too short -lrb- ~ 10 ' -rrb- to go from immediately above the television straight across half the television straight down to the floor straight forwards to the front of we cabinet and immediately back to the wall . there be no way to take a connector off and reuse it . one be absolutely force it seem to either cut the speaker wire in two and use two pair of splice or remove the connector and buy a new one attach to a wire and splice both wire once after remove the connector . the male -lrb- ? -rrb- connector be not something one can reuse by put simple wire in it . the wire to form a connection with the plug each have special tricked-up -lrb- female -rrb- sleeve crimped on they end -lrb- with a metal tab one can press to remove the wire and sleeve from the connector -rrb- . I do not think one can buy connector to fit on the end of wire directly . one can buy universal 4.2 mm -lrb- ? -rrb- connector attach to speaker wire and splice , but I do not believe there be make any kind of extension cord with a female receptacle on one end -lrb- a third party make universal 4.2 mm male -lrb- ? -rrb- plug attack to wire , but I do not think they sell anything with female receptacle suitable for SONY speaker -rrb- . I think about use ugly inelegant splice -lrb- the surround speaker be too short to go to the side of we sofa via the wall -rrb- on the surround speaker and spending extra to buy a special speaker wire with a plug so I can put the subwoofer on the floor next to the wall right next to the cabinet -lrb- be that ask too much ? -rrb- , but I be really lock into either chop the subwoofer cable in two and splicing twice 2x or take the plug off and use the whole length of that cheap look speaker wire from the subwoofer -lrb- and buy a cable with the weird plug to splice to the end of it -rrb- . the engineering wiring mistake be so glaring and the wire look way too thin and cheap for the 165w the subwoofer be supposedly rate for -lrb- lower voltage to produce the same power mean higher current and higher heat than with higher voltage , so I be guess this be even worse than 165w table lamp plug into a -lrb- 120v -rrb- outlet -rrb- , and one can never tell maybe one day one might live with some crazy who want it crank up all the way , so I be frankly worry the wire might heat up so much as to start a fire . I be return the unit .