The GA90 is a great harp amp that keeps going up in value (relative value that is) In a message dated 10/22/2004 2:17:43 PM Central Standard Time, Toungblock@xxxxxxx writes: > hi harpers,i'm looking for a gibson ga 90. very cool amp for harp has 6 6'' > > 25 WATTS don't know the year. i understand jacobs played through one at one > point of his carrier. >