Magnepan MG III Value & Price History
As of 2026-09-21, a Magnepan MG III has a market value at around $500 (per pair). Based on 60 estimated sales.
Specifications
| Years produced | 1982–1988 |
| Type | Speaker |
| Brand | Magnepan |
| Original MSRP | 1,500 (1982) |
| Inflation-adjusted | ~$5,200 today |
| Market value (sold) | $500 |
Buying notes
Full-range Magnepan planar magnetic speaker. Requires a high-current amplifier. Check both panels produce clean output; buzzing or distortion indicates a panel issue. Magnepan can re-ribbon panels but shipping large planars is difficult. Original crossover components at this age should be verified.
Parts & supplies
Common maintenance items for the Magnepan MG III. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.
- Magnepan MG III surround refoam kit on eBay →
- Magnepan MG III crossover rebuild caps on eBay →
- Magnepan MG III replacement tweeter on eBay →
- Magnepan MG III 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
- Magnepan MG 2 $890/pair
- Magnepan MG IVA $595/pair
- Magnepan 1.7 $899/pair
Current listings
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