IA 40.1, Nakamichi PA350, Arc audio 6.5s 2 way active (1986 Alphasonik x-over) Audio Control three.1, Kenwood KDC-X592, TREO SSX based 18: 8 layer flat wound copper coil w/ dual SS former, 3 medium nomex spiders built by SPLaudio and repaired by myself and Harshaw for optimal sexiness and performance.