K140: dual vs triple roll surrounds (and possibly a DIY C8RK140)
JBL K130 15″ Speaker # 1(Vintage) – Sonic Circus
Pair 2x Vintage JBL K130 K130-16 USA 16ohm 15" Speaker Drivers Working Orig Cone | Reverb Austria
JBL K130 15″ Speaker # 1(Vintage) – Sonic Circus
JBL D130F complete restore to K130 specs. | Complete restore of JBL D130F updated to K130 specs with True Reproduction E130-8 recone kit. Headed to Texas. | By Upland Loudspeaker Service | Facebook