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Maxon PS4A (same with Ibanez PT4) is a vintage acoustic guitar multi‑effects processor from the early 1990s. It combines compression, EQ, chorus, and reverb in one compact unit, tailored for acoustic players. Known for its warm analog character, it delivers smooth dynamics and lush spatial effects. Though discontinued, it remains valued among collectors and musicians seeking classic acoustic tones.
Made in Japan. It works with AC100V input.
The product is sold with all functions working properly and its internal circuitry condition recorded/documented. As this is sold as “As-Is”, please feel free to contact us in advance with any questions or requests for additional photos. Accessories (power adapter, box, instruction manual, etc.) are limited to those shown in the photos. Items not pictured are not included.
All items are shipped with secured, insured, trackable. Depending on your area, you can also choose faster delivery options, so please take advantage of them.Returns will only be accepted if the item is different from the description, damaged, or defective. Please contact us within 3 days of receiving the product. Please keep the product packaging, instructions, and other accessories without discarding them.Returns or cancellations for any other reason will not be accepted.If an item is returned to us due to an incorrect shipping address, an undeliverable region, or non-payment of VAT, taxes, customs clearance fees or related processing fees, we will charge you for the original shipping fee, the return shipping fee, and a restocking fee (15% of product amount)
