McIntosh MR510
Sold or Listed Prices
10 market transactions via web search — not HiFi Registry sales.
Understanding the market
Half of recorded transactions fall between $400 and $675. The full range is tight — lowest to highest is only 1.8×, which suggests these units trade in a well-established band and condition moves price less than it does for many models.
What buyers should know
Confirm the unit has been aligned, which materially affects performance and is rarely done. Establish whether the display lamps work, as replacements are often obsolete.
This range reflects 10 recorded sales, compiled from publicly listed and completed sales elsewhere on the used market, not from HiFi Registry transactions. That is a large enough sample to price against with reasonable confidence, though condition and provenance still move individual units.