Infinity Kappa 9 Value & Price History
As of 2026-09-21, a Infinity Kappa 9 has a market value at around $239 (per pair). Based on 740 estimated sales.
Market value (per pair)
$239
Typical range $80–$680 · based on 740 recent sales
Estimated sale prices · 740 events · updated today · how we compute this
Note: sellers are currently asking $3,200–$3,200 for this model. The gap between typical sale prices and asking prices is unusually wide.`
Currently listed from$3,200
Original retail (1985)$2,000 · ~$5,900 today
Price history
Asking median is roughly flat over the last 45 days ($3,200 → $3,200).
View as table
| Date | Asking | Restored | Sold |
|---|---|---|---|
| 2026-08-08 | $3,200 | — | — |
| 2026-08-26 | $3,200 | — | — |
| 2026-08-30 | $3,200 | — | $240 |
| 2026-09-03 | $3,200 | — | $240 |
| 2026-09-07 | $3,200 | — | $240 |
| 2026-09-11 | $3,200 | — | $239 |
| 2026-09-15 | $3,200 | — | $239 |
| 2026-09-19 | $3,200 | — | $239 |
| 2026-09-21 | $3,200 | — | $239 |
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 | 2,000 (1985) |
| Inflation-adjusted | ~$5,900 today |
| Market value (sold) | $239 |
| Currently listed (asking) | $3,200 |
| Value vs MSRP | +60% |
Parts & supplies
Common maintenance items for the Infinity Kappa 9. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.
- Infinity Kappa 9 surround refoam kit on eBay →
- Infinity Kappa 9 crossover rebuild caps on eBay →
- Infinity Kappa 9 replacement tweeter on eBay →
- Infinity Kappa 9 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 Reference Standard IB $130/pair
- Infinity Kappa 8 $199/pair
- Infinity RS-1B $115/pair
Current listings
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