FR 13 - 4 OHM FR 12 - 8 OHM FR 12 - 4 OHM FR 10 WP - 4 OHM (WHITE) FR 10 WP - 4 OHM (BLACK) FR 10 HMP - 4 OHM FR 10 HM - 8 OHM FR 10 HM - 4 OHM FR 10 F - 4 OHM FR 10 - 8 OHM