Boss KM-6A — Unit Resale Value
Pro AudioWhat a used Boss KM-6A sells for on Reverb (median of 2 recent listings).
Boss KM-6A value — Used $596.1. Prices updated July 2026.
Used
$596.1
New / Sealed
—
Live on eBay now
Live on eBay right now
Price data verified against · 1
Item details
- Brand
- Boss
- Make
- Boss
- Model
- KM-6A
- Year
- 1977
- Finishes seen
- Black & Gray
- Used range
- $544.82 – $596.1
- Sample size
- 2 listings
Boss KM-6A resale value
The used Boss KM-6A has a median Reverb asking price of $596.1, ranging from $544.82 to $596.1 across 2 current listings.
What drives the price
For a used unit, channel count, working metering, and whether it's a sought-after vintage piece move the price most. Vintage and limited runs command a premium; player-grade and modified examples sell for less.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Used | $596.1 | eBay sold comps |
Frequently asked questions
- What is the estimated resale value range for the Boss KM-6A?
- Based on current listings, the Boss KM-6A is valued between $543.37 and $594.86.
- What year was this Boss model originally manufactured?
- The Boss KM-6A model dates back to 1977.
- What color finishes are available for this vintage amplifier?
- Finishes seen for the KM-6A include Black and Gray.
