SOLD Used CROWN CL4 Contractor Series amp modified with a quiet Noctua fan 6-7/10 condition - SOLD $250 plus shipping 8 ohm Stereo - 600W x 2 4 ohm Stereo - 1200W x 2 2 ohm Stereo - 1400W x 2 8 ohm Bridge-Mono - 2400W x 1 4 ohm Bridge-Mono - 2800W x 1 Crown CL4 pdf - https://adn.harmanpro.com/site_elements/resources/910_1425416710/CL-Series-Data-Sheet-136712_original.pdf