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Listing Comps / Integra / ADM 20.4
Stereo Power Amplifier

Integra ADM 20.4

Average price
$297
Market sales
4
Price trend
Insufficient trend data
$147Avg $297$400
Typical range $242 – $400 · middle 50% of transactions
Based on 4 market transactions via web search — not HiFi Registry sales. HiFi Registry sales will accumulate as new listings sell on HiFi Registry.

Sold or Listed Prices

DateSold or Listed for
Aug 6, 2022$242
May 10, 2021$400
Jan 14, 2019$147
Jul 30, 2019$400

4 market transactions via web search — not HiFi Registry sales.

Understanding the market

Half of recorded transactions fall between $242 and $400. The full range runs 2.7× from lowest to highest, which is normal for used equipment where condition, included accessories, and service history vary between units.

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 4 recorded sales, compiled from publicly listed and completed sales elsewhere on the used market, not from HiFi Registry transactions. Few units of this model reach the open market, which is itself useful to know: thin trading means published prices move further on any single transaction, and it usually means less negotiating room when one does appear. Treat this as an indication of where the model trades rather than a settled valuation.

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Integra ADM 20.4 used price — $297 average | HiFi Registry