Altec Lansing 604 Value & Price History
As of 2026-09-21, a Altec Lansing 604 has a market value at around $1,000, parts units around $1,100. Based on 190 estimated sales.
Price history
Asking median is down 4% over the last 45 days ($1,350 → $1,299).
View as table
| Date | Asking | Restored | Sold |
|---|---|---|---|
| 2026-08-08 | $1,350 | — | — |
| 2026-08-26 | $2,649 | — | — |
| 2026-08-30 | $1,299 | — | $1,000 |
| 2026-09-03 | $1,299 | — | $1,000 |
| 2026-09-07 | $1,299 | — | $1,000 |
| 2026-09-11 | $1,299 | — | $1,000 |
| 2026-09-15 | $1,299 | — | $1,000 |
| 2026-09-19 | — | — | $1,000 |
| 2026-09-21 | — | — | $1,000 |
Daily trimmed medians from qualifying eBay listings; days without a fresh sync are not plotted.
Specifications
| Years produced | 1945–1980 |
| Type | Speaker |
| Brand | Altec Lansing |
| Original MSRP | 1,500 (1945) |
| Inflation-adjusted | ~$18,000 today |
| Market value (sold) | $1,000 |
Buying notes
Altec Duplex coaxial studio monitor with compression driver centered in the woofer. The 604 was a broadcast reference for decades. Check the compression driver diaphragm; this is the critical component and replacements must match the original. Woofer cone condition. Multiple versions (604B through 604-8H) with different crossovers and driver specs.
Parts & supplies
Common maintenance items for the Altec Lansing 604. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.
- Altec Lansing 604 surround refoam kit on eBay →
- Altec Lansing 604 crossover rebuild caps on eBay →
- Altec Lansing 604 replacement tweeter on eBay →
- Altec Lansing 604 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
- Altec Lansing Model 19 $290/pair
- Altec Lansing Model 14 $300/pair
- KEF LS50 $1,300/pair
Current listings
Live listing data loads after the next price sync.
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