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Listing Comps / Adcom / GFA-5503
Multi-Channel Amplifier

Adcom GFA-5503

Average price
$584
Market sales
31
Price trend
↓ 3% vs prior year
$25Avg $584$888
Typical range $550 – $650 · middle 50% of transactions
Based on 31 market transactions via web search — not HiFi Registry sales. HiFi Registry sales will accumulate as new listings sell on HiFi Registry.

Price trend

Jan 25Jul 25Jan 26Jul 26

Sold or Listed Prices

DateSold or Listed for
May 3, 2026$550
Dec 27, 2025$600
Apr 6, 2026$600
Mar 31, 2025$600
Nov 15, 2024$765
Aug 21, 2024$599
Jun 3, 2024$888
Oct 16, 2023$649
Oct 16, 2023$649
Aug 30, 2023$611
Aug 30, 2023$610
Jan 9, 2023$450
Jan 31, 2023$749
Dec 12, 2022$799
Oct 22, 2022$399
Jun 8, 2022$600
Oct 24, 2022$550
Jun 12, 2022$750
Dec 9, 2021$400
Mar 19, 2022$450

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

Understanding the market

Half of recorded transactions fall between $550 and $650. The full observed range is unusually wide — the highest recorded price is 35.5× the lowest. A spread that wide usually means the recorded sales are not strictly comparable: different configurations or finishes, units sold for parts or with cosmetic damage, or listings where the model name is shared across more than one variant. Treat the middle range as the useful signal and the extremes as outliers worth investigating before you price against them.

Prices over the last twelve months have held roughly flat, averaging $583 across 3 recorded sales.

What buyers should know

This range reflects 31 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.

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Adcom GFA-5503 used price — $584 average | HiFi Registry