Gibson Original ABR-1 Kalamazoo Complete - chrome powered-subwoofer Keeley is well-known for high-end

Keeley is  well-known for high-end tone and durability

This 12-56 Light Top/Medium Bottom Bluegrass set has powerful low-end

8 mm driver in a small square design

or iPhone/iPad via USB—or as a standalone AD/DA converter and mic preamp

Gibson Original ABR-1 Kalamazoo Complete - chrome powered-subwoofer Keeley is well-known for high-endThe original, not a look alike. This is the genuine bridge, from the manufacturer who makes the originals. Manufactured since the 1950s, this Tune o matic bridge is 100% true to the original. The brass saddles are supplied without notches, for custom string spacing in your shop. The adjustable intonation screws are held by a retainer wire. Knurled height adjustment thumbwheels and threaded mounting posts are included. String spread 2 1 32" (51. 56mm)