where do you live?
I have an old sub amp from a broken sub that is basically unusable unless I grab the same crappy driver it came with.
Its a decent amp 240WRMS into 4 ohms. They have it on parts express. Its the dayton SA240. The only difference is that mine has an attached subcord and a auiod video switch that boost the 30Hz signal by 6 dB in the video setting.
Also, the speaker wire is cut pretty short, as the enclosure this amp was in is only 11 and 3/4 inches cubed.
I would ship it, but I have no box for it.
SheepStar