Eminence Legend B810 is a 32 ohm, 10 inch stamped frame bass guitar driver with a true classic design. It's modern features include an M-roll surround for higher excursion and less cone breakage, a double dipped cone apex for a really strong cone neck, and a bumped back plate for greater incursion before damage. Rated at 150 watts, 300 watt music program. Use the Legend B810 four at a time, connected in parallel, to get an 8 ohm load. Use them 8 at a time, connected all in parallel, to get a 4 ohm load.