Logitech z-5500 Subwoofer - Faulty so for parts of fix up ?

Logitech z-5500 Subwoofer - Faulty. Not sure what the problem is, perhaps a power issue, possibly even just a fuse. Main body is all fine. Sold as faulty. AMAZING SOUND FOR THE PRICE. 4/3/2 Chanel (2 x 150wrms) High pass filter 50 - 1000 Hz Low pass filter 50 - 250 Hz Bass Boost 6&12dB Dimensions (L x W x H) 323 x 244 x 49.2mm Input Sensitivity 0.2 ~ 10V Signal to noise ratio 20 ~ 20K Hz http://www.leedscaraudio.co.uk/products/amplifiers/onyx/onyx-4-Chanel-Power-Amplifier.html I bought this from leeds car audio recently for 89.99, it has never been used selling due to car sale MINT CONDITION 40 OVNO Thanks Brand new xqisit xqbeats headphones for sale. Never been opened, still in original box. Good quality over ear headphones at a reasonable price. RRP 40. FIRST COME, FIRST SERVED! Technics 1210 with Ortofon Cartridge and metal flight case. Great working order - fast sell required as moving - hence the price. Call Rob 07940 469009 This is 329 in the Apple Store So your making a little saving here, maybe buy yourself some Apps!! It is brand new, sealed in the Box I got this with my mobile contract but as i have an iphone and it has all the features of the ipod I dont need it!! I also have an 8gb new ipod touch which came with my Partners Contract phone It is the latest model! I will not post this item and I expect cash on Collection Please