SOLD: Kay M1B Double Bass 1958


Hello! Thank you for viewing one of our SOLD double bass listings!  This instrument is no longer for sale, but check out what’s currently available in our list of Vintage and Used Double Basses. Upton Bass is also the proud builder of new custom upright basses at every price point. We want to help you find the perfect bass!  Contact us at or call the shop at +1 (860) 535-9399

Amazing dreamboat Kay M1B from the dawn of rock ‘n’ roll. Blonde with violin corners. Well played but highly original.  1958 stunner, there aren’t that many of these and they don’t come up for sale that often.


If you have a thing for Kay basses, this could be the one.

This classic American upright bass is well played and cared for. Great vintage vibe and mojo.

1958 Kay M1B, the top of the line. Blonde fancy maple veneers made this the flagship of American plywood basses for generations. Sounds great, easy response, well cared for, with all the vintage details. Time machine!

Upton Bass String Instrument Co. specializes in building award-winning custom double basses and offers accessories for the double bass. Upton Bass also services all instruments and bows of the violin family with world class restoration and repair, to view our online restoration portfolio visit

Upton Bass is ready to offer advice and answer any questions regarding double basses or related bass topics. Please contact UB at or call the shop at +1 (860) 535-9399. Hours of operation Tuesday through Saturday 10am – 6pm. The Workshop (The Barn) and showroom are located in Mystic, Connecticut conveniently between Boston and NYC.