For BF and SF Twins, replaces JBL D120F. 12″, 40oz AlNiCo magnet boosted with ceramic, 60 watt, 2″ voice coil, curved cone. Loud, smooth, uncolored, compressed at higher volumes. Available with paper, aluminum, or the large H screen dome for more warmth.
Aluminum: Very bright, almost piercing highs akin to vintage JBLs. Good for crystal cleans, but avoid for even slight distortion.
Paper: High end is tonally between the other dome types, more piercing only under heavy pick attack. Good for brighter cleans and slight overdrive.
Large H (screen cloth): Allows the high end to be present but not overbearing. Good for warmer yet articulate cleans, but also moderate overdrive.