Krell FPB 400cx
Price trend
23 months of data shown — Listing Comps build richer history as transactions accumulate.
Sold or Listed Prices
15 market transactions via web search — not HiFi Registry sales.
Understanding the market
Half of recorded transactions fall between $3,841 and $4,750. The full range is tight — lowest to highest is only 1.5×, 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
Ask when the unit was last serviced and whether the output devices are original. Bias and DC offset drift with age on solid-state amps. Confirm both channels have been tested under load, not just powered on.
This range reflects 15 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.