API 550A Anniversary Edition. Saul Walker. 8 rare 500 Series Modules. MINT! is a used item in excellent condition, listed on Reverb. The asking price is £14,942. It is offered by Top Track through Reverb. Local pickup is available. It is in our Equalizers category. Used Gear Hunter first saw this listing on 6 November 2026 and last saw it on 9 November 2026. It has been seen 8 times in our scans. Prices are converted from the seller's currency when we scan the listing, so the amount you pay may differ slightly. The seller sets shipping, and import duty or VAT may apply, so check the final cost and the item's details on Reverb before buying.

From the seller

Heres a super rare opportunity: 8 API 550A Anniversary Edition in like new condition. They are divided in two sequential serial number series 30-33 and 51-54. As far as I know, only 50 of these modules were made to celebrate the 50th anniversary of the company in 2019. They were made using the specs of the original design made by API founder Saul Walker in 1969. Same circuit board, components, switches etc. Its like having a vintage 550A with the benefit of having new components in a unique finish. They all work great and have no issues. Great sounding equalizers! These modules came in a custom ordered API THE BOX 2, which is available for sale as well. Price is for all 8 modules combined. At this time Im selling them all together but Ill consider splitting them apart in the near future. I can ship worldwide. Local pick up in Nashville available. They will be shipped insured via UPS.

API 550A Anniversary Edition. Saul Walker. 8 rare 500 Series Modules. MINT!

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