Hifonics ZXi80.4 Zeus Series A/B Stereo 4 x 80 @ 4 OHMS, 4 x 160 @ 2 OHMS, 2 x 320 @ 4 OHMS 4/2 Ohm Stable 640 Watts 4/2 Channel Bass EQ with 45 Hz Bass Boost Illuminated Logo