JBL LE10H
The LE10H is a 10-inch woofer that JBL produced as a service replacement for the earlier LE10A. The record on this driver is thin and a bit muddled. Several sources use "LE10H" and "LE10A" interchangeably, so pinning down which specs belong to which model takes some care. What is reasonably well established: it's a 10-inch, 8-ohm low-frequency driver, sold as a direct replacement for the alnico-magnet LE10A. The LE10H uses a ferrite magnet instead of alnico. One forum user posits that rising alnico costs drove the switch, though that's inference rather than documented fact.
Owners most often report using it as a drop-in woofer for AR-2ax cabinets, where the original driver was the LE10A. A former JBL dealer posting in a forum thread said the LE10H was a service-replacement woofer that "worked fine in most enclosures." Owner opinions are mixed but generally positive. Some say it sounds good as a replacement, others feel it lacks the midrange punch of the alnico original. One user reported paying $50 apiece for used examples.
Beyond that, the documentation thins out quickly. No production years, original price, frequency response curve, or Thiele/Small parameters for the LE10H have surfaced in the available record. The repair-shop listings confirm the driver is serviceable. SpeakerWorks, Midwest Speaker Repair, and SpeakerExchange all offer re-foam and recone kits for it, and a common failure mode is surround deterioration. One repair shop also notes the LE10H can suffer from a weak spider. Beyond those service listings, almost nothing official from JBL appears to exist for this model.
- Nominal size: 10 inches
- Impedance: 8 ohms
- Magnet: Ferrite (vs. alnico on the LE10A)
- Voice coil: 2 inches (single forum source)
- Reported power handling: ~100 watts (single forum source)
Sources conflict on the surround material. Some forum posts describe a cloth surround, and repair shops offer both foam and cloth kits "for the LE10H." Neither is listed here as definitive. Treat the surround material as undocumented until a better source turns up.
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