JBL S310

The JBL S310 is a floor-standing, two-way loudspeaker. It paired a 200mm woofer with a 25mm tweeter, crossing over at 2.2kHz, and was rated for 100W nominal power handling (200W max) with a sensitivity of 90dB and a 6-ohm impedance. The cabinet measured 600×220×350mm and weighed in at 12.5kg — a fairly compact tower for the period. It offered dual binding posts for bi-wiring or bi-amping, a feature that was becoming standard on mid-range and upper-tier speakers by then. Frequency response was quoted at 55Hz–22kHz, and recommended amplifier power spanned a broad 2–200W.

Past the spec sheet, the documented record is thin. The S310 shows up in a brief listing in HiFI-Stereo (November 1994, p.143) as part of a dealer advertisement, and no substantial period review has surfaced. A later Audio (October 1999, p.182) issue carries a loudspeaker/driver section that may reference the model, but the OCR of that page is too degraded to read.

What's known, in short:

- Type: 2-way, floor-standing

- Woofer: 200mm · Tweeter: 25mm

- Frequency range: 55Hz–22kHz

- Power handling: 100W nominal / 200W max

- Impedance: 6Ω · Sensitivity: 90dB

- Crossover: 2.2kHz

- Recommended amp: 2–200W

- Binding posts: 2 pairs (bi-wire/bi-amp capable)

- Dimensions: 600×220×350mm (H×W×D) · Weight: 12.5kg

No production years, original price, or family/lineage information has been documented, and all specs trace back to a single source with no corroboration. It appears to have been a competent, straightforward two-way tower.

eBay Listings

JBL S310 speakers

$150

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