I have 2 MB Quart ONX4.80's. Both 100% functional. They both have some scratches from underseat mounting but other than that, great condition. Have the original boxes and manuals. I have pics on request
I need a mono sub amp. 750-1000 watts RMS, prefer 1 ohm stable and bass remote. I would like to hold on to 1 of the 4.80's but willing to let both of them go for the right amp.