Check the listing for details. SWR Bass Amp Replacement Knob. New!. Condition: New. Listed at 4.99 USD. "The company may be gone, but the amps must Rock On!" Brand new replacement knob for your SWR amp! Made of black plastic, ribbed with white line. Replace all your knobs and make your amp look like new! Authenticity - This is a current-production knob, not NOS. That being said, it is the most accurate replacement I have found. The dimensions are accurate. The ribbing is slightly shallower than the originals and the plastic is just a touch shinier than the originals. We are buying SWR Engineering and SWR Sound Corporation gear and parts. Working or not! Contact us. About us - We are dedicated aficionados of the late Steve William Rabe's work and aim to keep his creations running for decades to come. Our offerings are currently limited but as the business grows we hope to add more replacement parts, even the custom pieces, to keep your amp running and sounding its best. About our parts - We make every effort to supply you with the exact same part your amp was originally built with. But technology moves by at a lightning pace and in many cases the part, and sometime the manufacturers themselves (!), no longer exist. In these cases, we offer the best suitable, high-quality replacement we can find, which we have thoroughly tested in our own equipment. Terms - If not completely satisfied with our offerings please return the item(s) within 30 days for a refund or replacement (your choice). Returned items must be in listed condition.