API Audio · 500 Series
API Audio API 550A 500 Series 3-Band Equalizer Used Mint
$1,050
Single offer
Deal Score pending — no 90-day baseline yet
500 Series prices and deals
UponSale tracks 63 products in this category across 68 offers from 1 store.
UponSale price index
Products tracked
63
Offers compared
68
Stores
1
Median real discount
—
Lowest tracked price
$419
BAE · 500 Series
BAE 500 Series 11 Space Rack w/2.1 Amp 1 XLR PSU
$1,250
Single offer
Deal Score pending — no 90-day baseline yet
Tonelux · 500 Series
Tonelux TX5C 500-Series Compressor
$699
Single offer
Deal Score pending — no 90-day baseline yet
Heritage Audio · 500 Series
Heritage Audio OST 10 V2.0 10-Slot 500 Series Rack
$899
Single offer
Deal Score pending — no 90-day baseline yet
Serpent · 500 Series
Serpent Audio Chimera 500 Series Opto Compressor
$1,399
Single offer
Deal Score pending — no 90-day baseline yet
Purple Audio · 500 Series
Purple Audio Action 500 Series FET Compressor
$825
Single offer
Deal Score pending — no 90-day baseline yet
Heritage Audio · 500 Series
Heritage Audio OST 6 V2.0 6-Slot 500 Series Enclosure
$599
Single offer
Deal Score pending — no 90-day baseline yet
Serpent · 500 Series
Serpent Audio Send N' Blend 500 Series Mix / Blend Module
$499
Single offer
Deal Score pending — no 90-day baseline yet
Purple Audio · 500 Series
Purple Audio Cans II 500 Series Discrete Stereo Headphone Amp and Control Room Preamplifier
$550
Single offer
Deal Score pending — no 90-day baseline yet
Rodec · 500 Series
Rodec M-501 500 Series Mic / Line Preamp EQ
$978.28
Single offer
Deal Score pending — no 90-day baseline yet
Purple Audio · 500 Series
Purple Audio Sweet Ten 10-Slot 500 Series Chassis Rack
$900
Single offer
Deal Score pending — no 90-day baseline yet
Elysia · 500 Series
Elysia xpector qube 500 Series Dual Headphone Amplifier
$1,629
Single offer
Deal Score pending — no 90-day baseline yet
Wolff Audio · 500 Series
Wolff Audio W1 500 Series Console Microphone Preamplifier
$787
Single offer
Deal Score pending — no 90-day baseline yet
Vintech Audio · 500 Series
Vintech Audio VA 573 500 Series Mic Preamp Module
$695
Single offer
Deal Score pending — no 90-day baseline yet
Purple Audio · 500 Series
Purple Audio Pants Four Opamp Differential Mic Preamp
$775
Single offer
Deal Score pending — no 90-day baseline yet
BAE · 500 Series
BAE 3LB 500 Series 3 Space Lunchbox
$525
Single offer
Deal Score pending — no 90-day baseline yet
BAE · 500 Series
BAE R53 3 Channel Horizontal 500 Series Rack
$560
Single offer
Deal Score pending — no 90-day baseline yet
BAE · 500 Series
BAE DLB Dual-Channel 500 Series Rack Unloaded
$495
Single offer
Deal Score pending — no 90-day baseline yet
Wunder Audio · 500 Series
Wunder Audio Cobalt 500 Series Preamplifier
$939
Single offer
Deal Score pending — no 90-day baseline yet
Heritage Audio · 500 Series
Heritage Audio OST 4 V2.0 4-Slot 500-Series Rack
$419
Single offer
Deal Score pending — no 90-day baseline yet
Chandler Limited · 500 Series
Chandler Limited TG2-500 Preamplifier
$1,199
Single offer
Deal Score pending — no 90-day baseline yet
BAE · 500 Series
BAE Kenny Aronoff Mic Preamp Bundle 500 Series Format KA5
$4,800
Single offer
Deal Score pending — no 90-day baseline yet
Serpent · 500 Series
Serpent Audio SB4001 500 Series Stereo Buss Compressor Module
$1,349
Single offer
Deal Score pending — no 90-day baseline yet
Solid State Logic · 500 Series
Solid State Logic B-Dyn 500 Series B-Series Dynamics Module Aggressive Character Compressor
$899.99
Single offer
Deal Score pending — no 90-day baseline yet
How we read this category
Every figure above comes from prices we observed ourselves on retailers’ public product data. A “real drop” means today’s best verified price is below the median we recorded for that product over the last 90 days — not that a store put a sale badge on it.
0 of the 63 products here currently meet our quality bar for search indexing. The rest stay visible to you but are excluded from search engines until they have enough verified offers and history to be genuinely useful.
How we calculate this
Where prices come from. We read the product data each retailer publishes on its own site, unhurriedly and within the rules that retailer sets. We never work around an access control and we never buy collected data of uncertain provenance.
What “verified” means. An offer can win best price only if it is inside our freshness window, matched to the exact variant, in stock, and free of an unresolved price anomaly. “Best verified price” means lowest among the fresh offers we track — not the lowest price on the internet.
How history works. Every price we observe is stored with its source and timestamp. Daily market low, median and high come from those observations, so the price history on this page is ours, not a retailer’s claim.
What we exclude. Stale offers, mismatched variants, bundles compared against single items, and prices that move implausibly without corroboration from another store.
Images. Product photographs come from the retailer they sit beside, loaded from their own image host. We do not re-host them and claim no rights in them.