1962 Fender Concert 6G12-A Brownface Amp - Vintage Tubes - Original Transformers This amp is incredibly clean and sounds amazing. It is in stock condition with the exception the speakers, which are Weber AlNiCo 10″ speakers, and two caps replaced......still has it's full compliment of blue Astron tone caps. The Fender Concert has great clean tones and that wonderful, swirly TRUE vibrato. Presence control is awesome. Great grit when pushed and the 10″ speakers keep the bottom end nice and tight, while pushing a lot of air. These were the amps Leo Fender came out with for guitarists who were using the 4-10 Bassman for their playing. Same huge transfomer and sound - but unlike the Bassman- there are two different channels to pick from. The amp is loaded with the original spec vintage tubes - real Tung Sol 5881's for power, RCA and Sylvania 7025's for most of the 6 preamp tubes.......with the original filter caps that are still doing the job......comes with a replacement Fender footswitch A fantastic amp that belies it's 55 years.....among Fender's finest