Originally posted by XterraDiver:
[QB
Mounting an amp upside down is not a good idea the heat has no way of dissipating from the heat sink that way and will cause thermal shut down and possible damage[/qb][/QUOTE]
If you mounted it OUT IN THE OPEN, whther it was inverted or not, should not affect the operation. If, however you covered the heatsink, then it would affect it (overheat, etc.). The orientation of the heatsink does not affect its operation, it would still disipate into the surrounding atmosphere. Yes, heat rises, but heatsinks operate on the theory of disipation through radiation by way of surface area.