For sale an arc audio oldschool mini 500m mono block amp for bass. Cosmetic looks used with some scratches and dents. I bench tested and it works good. This amp is a compact small amp very power full it is 500 rms to run bass. It is designed from the zapco created Robert Zeff. It can be used in a car, motorcycle,  scooter, boat, razer etc a longer your running 12 volts. Take good look at the pictures. This item is for sale as is not money back or returns.  Thanks