SOLD: Upton Bass Karr Model 5-String Travel Double Bass 2014


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

Upton Bass Karr Model 5-String Travel Double Bass 2014 Opus 488

This Karr Travel Bass package features many setup opportunities, great full-spectrum tone and presence, extra parts and an Upton hardshell flight case.


Upton Bass Karr Model 5-String Travel Double Bass 2014 Opus 488

This 2014 flatback hybrid Karr Model has many attractive features – Five String, Removable / Adjustable travel neck, and a deep dark finish.

Built with the full Travel Bass treatment – lightened neck, tuners and parts, this unique Karr Model 5-String double bass also includes a UB clamshell travel case.  This bass has traveled extensively by plane, train & automobile!  It even comes with one of our early prototype minimalistic hard shell cases, so not only is this bass travel-ready, but we could FedEx ship it to your front door!

The Karr Model has unparalleled upper bout access and reach, extra long neck, while retaining enormous bass response with its long lower bout. This particular varnish appears dark chocolate brown at first glance with dark amber highlights appearing in the light, set off with the deeply recurved carved top.

Well played and “broken in,” this upright bass is super responsive, very fun to play, with a nuanced deep cello voice under the bow. Currently set up with a high C 5th string, it also affords many possibilities, a low B, or even a four – this bass package also includes a 4-string nut, bridge, and tailpiece, a full extra setup if you’d like to leave one tuner empty and play as a traditional four!  With the travel neck, it is also possible for Upton Bass to craft another fully devoted 4-string neck so the player can easily switch. Call us +1 (860) 535-9399 and speak to Eric for details on pricing.

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.