Over 50 years have passed since Bob Gallien strode into a local music store to show off a powerful amp he had constructed in his garage (the GMT 266A), to see if the owner might be interested in selling it for him. That very amp would be bought the next day by a local guitarist, Carlos Santana, who would then take it with him to use at Woodstock. (You can see the amp in some original footage here.) Not a bad beginning. Since that time, GK has produced a variety of innovative, powerful amps and cabinets, becoming a celebrated brand among electric and upright players. (The MB 150 combo has long been a favorite among upright bassists.) With the Legacy series, GK continues its innovative and aggressive approach to making sure bassists around the world have reliable and inspiring amplification. GK sent us its Legacy 1200 head, paired with a CX 410 cabinet. I set it up in my rehearsal space here in Nashville, which allowed me to test it with a variety of musical genres and situations. Over