The pinnacle of 60's American classic rock tone. The bassman has always shared a lot of DNA with Marshalls, and this one can easily keep up with any JTM45 from the era. The amp is all original, except for changed bias cap, bias circuit, preamp electrolytics, and power cord. The cabinet has been re-covered, and the stock speakers have been changed out for a pair of the infamous JBL D120F orange labels.