fuse damage

Maybe a little noobish question but can "audiophile" fuses (of the same values as a stock) damage the amp or any other device? Would like to know did some one had a first hand experience. I had a chat with The Gryphon Audio and they told me that i can experiment with different fuses but if it somehow damages the amp they dont cover warranty ofcourse...fuses do blow but did someone had thatlike misfortune. I would like to experiment but i dont want to damage the amp in any scenario. Thanx