Premier Guitar

WattGrinder Engineering-ToneGrinder

January 22, 2009

PG's Joe Coffey is On Location at NAMM '09 and stops by the WattGrinder booth. Here, we get a look at something that may change the amp world -- long-lasting, non-vacuum preamp tube replacements. Watch this video to see what the commotion in NAMM's Hall E was all about.