Infinity Kappa 8 Value & Price History
As of 2026-10-06, a Infinity Kappa 8 has a market value at around $199 (per pair). Based on 940 estimated sales.
Price history
Asking median is up 100% over the last 41 days ($749.95 → $1,499.99).
View as table
| Date | Asking | Restored | Sold |
|---|---|---|---|
| 2026-08-26 | $749.95 | — | — |
| 2026-08-30 | $1,250 | — | $199 |
| 2026-09-03 | $1,500 | — | $199 |
| 2026-09-07 | $1,499.99 | — | $199 |
| 2026-09-11 | $1,499.99 | — | $199 |
| 2026-09-15 | $1,049.85 | — | $199 |
| 2026-09-19 | $1,300 | $1,000 | $199 |
| 2026-09-23 | $1,300 | $1,000 | $199 |
| 2026-09-27 | $1,499.99 | $1,000 | $199 |
| 2026-10-01 | $1,499.99 | $1,000 | $199 |
| 2026-10-05 | $1,499.99 | $1,000 | $199 |
Daily trimmed medians from qualifying eBay listings; days without a fresh sync are not plotted.
Specifications
| Years produced | 1985–1990 |
| Type | Speaker |
| Brand | Infinity |
| Original MSRP | 1,400 (1985) |
| Inflation-adjusted | ~$4,100 today |
| Market value (sold) | $199 |
Buying notes
Infinity Kappa floor-stander. Check the EMIT tweeter produces clean output; EMIT ribbon tweeters can fail and replacements are harder to source now. Woofer surround condition. Budget for refoaming if needed. Good build quality when all drivers are functional.
Parts & supplies
Common maintenance items for the Infinity Kappa 8. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.
- Infinity Kappa 8 surround refoam kit on eBay →
- Infinity Kappa 8 crossover rebuild caps on eBay →
- Infinity Kappa 8 replacement tweeter on eBay →
- Infinity Kappa 8 grilles and badges on eBay →
- Speaker wire — 16awg is standard for most setups on Amazon →
- Banana plugs — cleaner connection than bare wire on Amazon →
- Polyfill acoustic stuffing — reduces internal resonance in sealed and ported cabinets on Amazon →
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
- Infinity RS-IIb $80/pair
- Infinity Kappa 7 $103/pair
- Infinity Reference Standard IB $130/pair
Current listings
Live listing data loads after the next price sync.
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