JBL 4851

Not much is documented about the JBL 4851 as a standalone unit. The record shows it was part of JBL's 4850 Series, a configuration described as a 12" subwoofer wired in a stereo pair with a center fill. The system appears to have used two 4851 satellite speakers alongside a subwoofer. That breakdown comes from a researcher's paraphrase, not a direct source quote.

The 4851 is listed as a "speaker" in the few directories that mention it. Manuals & Specs, Vintage Manuals, and Mostly Music all confirm the model exists and what category it falls in, but none give overlapping specifications. No production years, original price, dimensions, weight, impedance, or power handling have surfaced for the 4851 itself.

The related JBL 4699B is described as "a self-contained version" of the 4850 Series configuration. It has a frequency response of 50 Hz to 12 kHz and crossover points at 10 kHz and 6 kHz. Those figures attach to the 4699B system description in the source. It is not clear whether they apply to the 4851 satellite, so treat them as system-level context, not 4851 specifications.

Known facts, thin as they are:

Part of the JBL 4850 Series
Listed as a "speaker" in period equipment directories
System configuration: 12" subwoofer, stereo pair with center fill

HiFI-Stereo (July 1996, p.94) ran a dealer advertisement referencing "nearly two decades of America's" JBL. That confirms the brand was still on retail shelves, but it says nothing specific about the 4851.

No reviews, owner feedback, or collectibility data exist in the available record. If you own a 4851 and can confirm what drivers it used or what cabinet it shipped in, the archive would like to hear it. This page is currently built on little more than the model name.