Infinity Kappa 7 Value & Price History
As of 2026-11-05, a Infinity Kappa 7 has a market value at around $135 (per pair). Based on 624 estimated sales.
Market value (per pair)
$135
Typical range $49–$360 · based on 624 recent sales
Estimated sale prices · 624 events · updated today · how we compute this
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Original retail (1983)$1,000 · ~$3,300 today
Price history
Asking median is up 40% over the last 67 days ($500 → $700).
View as table
| Date | Asking | Restored | Sold |
|---|---|---|---|
| 2026-08-31 | — | $1,252 | $100 |
| 2026-09-06 | — | $700 | $100 |
| 2026-09-12 | — | $700 | $100 |
| 2026-09-18 | — | $700 | $100 |
| 2026-09-24 | $500 | $700 | $100 |
| 2026-09-30 | — | $700 | $100 |
| 2026-10-06 | $800 | $700 | $103 |
| 2026-10-12 | $800 | $700 | $106 |
| 2026-10-18 | $700 | $700 | $115 |
| 2026-10-27 | $700 | $700 | $129 |
| 2026-11-02 | $700 | $700 | $130 |
| 2026-11-05 | $700 | $700 | $135 |
Daily trimmed medians from qualifying eBay listings; days without a fresh sync are not plotted.
Specifications
| Years produced | 1983–1989 |
| Type | Speaker |
| Brand | Infinity |
| Original MSRP | 1,000 (1983) |
| Inflation-adjusted | ~$3,300 today |
| Market value (sold) | $135 |
Parts & supplies
Common maintenance items for the Infinity Kappa 7. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.
- Infinity Kappa 7 surround refoam kit on eBay →
- Infinity Kappa 7 crossover rebuild caps on eBay →
- Infinity Kappa 7 replacement tweeter on eBay →
- Infinity Kappa 7 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 SM-155 $1,000/pair
- Infinity Kappa 8 $199/pair
Current listings
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