Palmer PDI 03 JB guitar DI-box & speaker simulation, Joe Bonamassa signature, JB switch (off/medium/heavy - acts like a mid boost), attenuator (24/12/0db), deep/normal/flat voicing switch, bright/normal/mellow voicing switch, 1x input, 1x output, 1x balanced XLR out, 1x thru, dimensions:140 x 95 x 50 mm