Description Reviews Description: Guild redefined acoustic bass guitars in the mid-1970s with the introduction of the B-50, based on the popular Guild jumbo shape. The B-140E carries on this tradition, providing an impressively loud tone that can be easily amplified with its Fishman Sonitone Bass pickup. (0 ) Reviews: No reviews yet. Be the first to review! Write a Review Your email address will not be published. Required fields are marked. You must be logged in to post a review.