When to replace pre-amp tube?

Hi, I'm a tube dummy and want to know when would I need to replace the tubes on my MF Nu-vista M3 integrated amp. Thanks.

thuhaile08-25-2011 7:27pm

sebrof Details Discussions Posts This discussion Message User 837 posts 08-26-2011 at 01:06am Copy Comment URL Report Comment Edit Delete When you get curious as to how another brand or type will sound in your gear.