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Listing Comps / Conrad-Johnson / Evolution 20
Preamplifier

Conrad-Johnson Evolution 20

Average price
$2,041
Market sales
6
Price trend
Insufficient trend data
$1,050Avg $2,041$2,500
Typical range $1,800 – $2,500 · middle 50% of transactions
Based on 6 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
Jul 10, 2023$2,500
Mar 8, 2021$1,050
Mar 20, 2019$1,999
Oct 23, 2015$1,800
Sep 14, 2015$2,395
Dec 5, 2014$2,500

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

Understanding the market

Half of recorded transactions fall between $1,800 and $2,500. The full range runs 2.4× from lowest to highest, which is normal for used equipment where condition, included accessories, and service history vary between units.

What buyers should know

Check whether the unit uses tubes or solid-state gain, and if tubes, when they were last replaced. Confirm all inputs switch cleanly and the volume control is free of channel imbalance at low levels, which is the most common wear point.

This range reflects 6 recorded sales, compiled from publicly listed and completed sales elsewhere on the used market, not from HiFi Registry transactions. That is enough to establish a working range, but not enough to be precise — treat it as a guide rather than an appraisal.

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Conrad-Johnson Evolution 20 used price — $2,041 average