JBL 4312 Value & Price History

As of 2026-10-06, a JBL 4312 has a market value at around $2,399 (per pair); restored examples average $2,799, parts units around $649.99. Based on 400 estimated sales.

Market value (per pair) $2,399 Typical range $436–$3,199 · based on 400 recent sales Estimated sale prices · 400 events · updated today · how we compute this `
Currently listed from$899.99
Restored / serviced$2,799
Parts / not working$649.99
Original retail (1982)$800 · ~$2,800 today

Is a parts unit worth buying?

The $649.99 parts price is $1,025.01 less than the $1,675 working asking price — a 61% gap. Whether that gap covers the cost of repair depends on what's wrong.

What "for parts" usually means for a speaker: Speaker pairs listed for parts often have one blown tweeter, torn woofer surrounds, or damaged crossover components. Sometimes it's just a missing grille or damaged cabinet.

When it pencils out: Surround replacement (refoaming) costs $30–80 for a pair of woofers — completely DIY-able with a kit. Tweeter replacement depends heavily on whether correct replacements exist. Cabinet damage is usually cosmetic. The $1,025.01 gap between parts and working price can make refoaming worth pursuing if surrounds are the only issue.

When to walk away: A blown tweeter with no correct replacement available is the parts-speaker trap. Original drivers on desirable speakers are often irreplaceable; aftermarket substitutes change the sound and hurt value. Verify which driver failed and whether correct replacements exist before buying.

DIY vs shop: Surround replacement (refoaming) is beginner-friendly DIY. Crossover rebuilding is moderate. Driver replacement requires matching the original specs carefully. Full repair cost context: what vintage stereo repair actually costs.

Price history

$1,290$2,100$2,910 Aug ’26 Oct ’26

Asking median is down 14% over the last 60 days ($1,950 → $1,675).

View as table
DateAskingRestoredSold
2026-08-08$1,950$2,649—
2026-08-29$1,950$2,659.05$2,499
2026-09-02$1,950$2,564$2,499
2026-09-06$1,963$2,564$2,499
2026-09-10$1,950$2,699$2,484
2026-09-14$1,600$2,699$2,399
2026-09-18$1,675$2,549$2,399
2026-09-22$1,600$2,599$2,399
2026-09-26$1,750$2,699$2,399
2026-09-30$1,675$2,699$2,399
2026-10-04$1,400$2,799$2,399
2026-10-06$1,675$2,799$2,399

Daily trimmed medians from qualifying eBay listings; days without a fresh sync are not plotted.

Specifications

Years produced1982–1990
TypeSpeaker
BrandJBL
Original MSRP800 (1982)
Inflation-adjusted~$2,800 today
Market value (sold)$2,399
Currently listed (asking)$1,675
Restored value$2,799
Value vs MSRP+109%

Buying notes

JBL studio monitor, multiple versions exist (4312A, B, C, etc.). Woofer surround condition; budget for refoaming. Check all three drivers produce clean output. The 4312 was a professional reference monitor; driver quality is high when intact.

Parts & supplies

Common maintenance items for the JBL 4312. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.

Purchases through these links may earn StereoWorth a small commission at no extra cost to you. See our affiliate disclosure. Repair budgeting: what vintage stereo repair actually costs.

Comparable models

Current listings

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