Slim refers to the 1.715" nut width, about the same as on standard electric guitars. If you regularly play a guitar with a fairly narrow neck (most solid body electric guitars), the ACS-SA Slim for The slim neck of this guitar along with our Ergocut shaping technique and 16" fingerboard radius make it very playable for steel-string guitarists looking to integrate string guitar sounds. of nylon in his music. Aside from the new neck, the ACS-SA Slim shares all of the same features that have made the ACS-SA a standard. The chambered maple body and cedar top result in an instrument that is virtually feedback-free, making it easy to use even at very high volumes.