overheating

hi i have an MA 6900 mcintosh amp only problem when driven hard for a long period will cut out on thermal overload any thoughts out there on cooling.

hopey01-04-2014 9:48pm

brf Details Discussions Posts This discussion Message User 1,715 posts 01-06-2014 at 05:16pm Copy Comment URL Report Comment Edit Delete Try using larger footers and place a laptop cooling fan underneath the amp. Is you amp in a cabinet, if so, take it out.
theo Details Discussions Posts This discussion Message User 2,658 posts 01-06-2014 at 05:45pm Copy Comment URL Report Comment Edit Delete Try taking the cabinet cover off the amp, so more air can circulate. I have a McIntosh MC402 and MD205, both in a audio cabinet. I have only had my 205 go into thermal shutdown once for a movie. I cut 4 2.5" holes inthe bottom of cabinet(audio not amp) and that let more air convect thru to dissapate the heat and never have had an issue again. As far as the 402 it has never had an issue with heat.
hopey OP Details Discussions Posts This discussion Message User 3 posts 01-08-2014 at 01:54am Copy Comment URL Report Comment Edit Delete thanks once again,amp is in open i will take all info onboard i can see may be a fan being involved here...