hi, i have just been given a hh bass machine amp its the complete head and cab model its 250w and from what i have been told its from the mid 80's but i dont play bass i only play electric and acoustic guitars so its of no use to me so im going to sell it but i have no clue what there worth so if anyone can give me some sort of idea it would be greatly appreciated and i may be able to post some pics if it helps. thanks.