Equalizer
ADC SS-525X
Average price
$403
Market sales
6
Price trend
Insufficient trend data
$125Avg $403$494
Typical range $400 – $475 · 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
6 market transactions via web search — not HiFi Registry sales.
Understanding the market
Half of recorded transactions fall between $400 and $475. The full range runs 4.0× from lowest to highest, which is normal for used equipment where condition, included accessories, and service history vary between units.
What buyers should know
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.