Marantz PM4 Value & Price History
As of 2026-10-06, a Marantz PM4 has a market value at around $380, parts units around $89.95. Based on 194 estimated sales.
Is a parts unit worth buying?
The $89.95 parts price is $85.05 less than the $175 working asking price — a 49% gap. Whether that gap covers the cost of repair depends on what's wrong.
What "for parts" usually means for a amplifier: Integrated amplifiers listed for parts commonly have one dead channel, blown output stage, or failed power supply caps. Sometimes it's as simple as a bad speaker relay.
When it pencils out: Output stage repair runs $100–300 depending on whether replacements for the output transistors exist. A full service is $200–400. The $85.05 gap here is tight — only pursue if you have a specific diagnosis and repair quote in hand.
When to walk away: An amp with a blown transformer or no available output transistor replacements is a parts donor, not a restoration candidate. Ask the seller what failed and whether any repair was attempted.
DIY vs shop: Speaker relay cleaning and fuse replacement are accessible DIY tasks. Anything touching the output stage needs a proper bench setup. Full repair cost context: what vintage stereo repair actually costs.
Price history
Asking median is down 61% over the last 60 days ($450 → $175).
View as table
| Date | Asking | Restored | Sold |
|---|---|---|---|
| 2026-08-08 | $450 | — | — |
| 2026-09-01 | — | — | $352 |
| 2026-09-05 | — | — | $360 |
| 2026-09-09 | — | — | $360 |
| 2026-09-13 | — | — | $380 |
| 2026-09-17 | — | — | $392 |
| 2026-09-21 | — | — | $400 |
| 2026-09-25 | — | — | $400 |
| 2026-09-29 | $463 | — | $400 |
| 2026-10-03 | $175 | — | $392 |
| 2026-10-06 | $175 | — | $380 |
Daily trimmed medians from qualifying eBay listings; days without a fresh sync are not plotted.
Specifications
| Years produced | 1979–1982 |
| Power output | 50 wpc (8 ohms) |
| Type | Amplifier |
| Brand | Marantz |
| Original MSRP | 300 (1979) |
| Inflation-adjusted | ~$1,250 today |
| Market value (sold) | $380 |
| Currently listed (asking) | $175 |
| Value vs MSRP | -42% |
Parts & supplies
Common maintenance items for the Marantz PM4. eBay links are model-specific searches; Amazon links are for generic supplies that work across most equipment.
- Marantz PM4 capacitor recap kit on eBay →
- Marantz PM4 replacement knobs on eBay →
- Fuses for the Marantz PM4 on eBay →
- DeoxIT D5 — cleans oxidized contacts, quiets scratchy pots on Amazon →
- Multimeter — check DC offset before connecting speakers on Amazon →
- Speaker wire 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
- Marantz 1090 $500
- Marantz 1120 $850
- Marantz CD-63SE $250
Current listings
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