Black and silver electronic component with labeled terminals and frequency markings.

API 550A 500 Series 3-Band Equalizer Module — Unit Resale Value

Pro Audio

What a used API 550A 500 Series 3-Band Equalizer Module sells for on Reverb (median of 5 recent listings).

API 550A 500 Series 3-Band Equalizer Module value — Used $2,100. Prices updated July 2026.

Used
$2,100
New / Sealed
Live on eBay now
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Selling on eBay right now · by condition
New
$1,295
14 listings asking
Used
$1,083
6 listings asking
Median of current eBay asking prices — live, not sold data.

Live on eBay right now

Item details

Brand
API
Make
API
Model
550A 500 Series 3-Band Equalizer Module
Finishes seen
Black
Used range
$1,290 – $2,800
Sample size
5 listings

API 550A 500 Series 3-Band Equalizer Module resale value

The used API 550A 500 Series 3-Band Equalizer Module has a median Reverb asking price of $2,100, ranging from $1,290 to $2,800 across 5 current listings.

What drives the price

For a used unit, channel count, working metering, and whether it's a sought-after vintage piece move the price most. Vintage and limited runs command a premium; player-grade and modified examples sell for less.

Price guide

What this actually trades for — sold values by condition vs. what sellers are asking today

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ConditionValueBased on
Used$2,100eBay sold comps
Live asking — low / typical / high$595 / $1,295 / $3,58520 live eBay listings

Market check: As of July 22, 2026, 20 live eBay listings ask $595.00–$3,585.00 (median $1,295.00). Asking prices sit about 38% below the typical sold value of $2,100.00 — a window worth checking for buyers.

Frequently asked questions

What is the typical price range for this API equalizer module?
Based on current listings, the used price range for the API 550A 500 Series 3-Band Equalizer Module is $950 – $1,320.
Is the 550A available in different colors?
The finish seen for this model is Black.
How many listings are currently available for this item?
There are currently 5 listings available for the API 550A 500 Series 3-Band Equalizer Module.

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