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<blockquote data-quote="John Roberts" data-source="post: 105588" data-attributes="member: 126">Re: Uli Behringer of The Music Group Q&amp;A&nbsp; &nbsp; Question and suggestion Re&nbsp; ,X32Warranty coverage generally does not allow customers to open up a unit and muck around inside. UL frowns on that too. How can you tell an original build problem from something the customer did while messing around inside? Changing to a different model fan no matter what your mental rationalization is, changes the design. It &quot;should&quot; not cause the amp to fail, but I can&#039;t say that confidently without studying the design.&nbsp; I would generally not void a warranty if the customer replaced the fan with one that works even better, but those units don&#039;t end up in the service dept to be repaired. If the customer precipitated the failure by something they did they deserve to pay. I have heard anecdotes about customers changing the direction of amplifier fan air flow, thinking that it doesn&#039;t make a difference to the amp (it does). Second guessing the amp designer may be good sport, but could void your warranty. &nbsp;JR</blockquote>

[QUOTE="John Roberts, post: 105588, member: 126"] Re: Uli Behringer of The Music Group Q&A Question and suggestion Re ,X32 Warranty coverage generally does not allow customers to open up a unit and muck around inside. UL frowns on that too. How can you tell an original build problem from something the customer did while messing around inside? Changing to a different model fan no matter what your mental rationalization is, changes the design. It "should" not cause the amp to fail, but I can't say that confidently without studying the design. I would generally not void a warranty if the customer replaced the fan with one that works even better, but those units don't end up in the service dept to be repaired. If the customer precipitated the failure by something they did they deserve to pay. I have heard anecdotes about customers changing the direction of amplifier fan air flow, thinking that it doesn't make a difference to the amp (it does). Second guessing the amp designer may be good sport, but could void your warranty. JR [/QUOTE]

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