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<blockquote data-quote="n2audio" data-source="post: 4984510" data-attributes="member: 540940">but that&#039;s not accurate, at least not based solely on fuse size.If you look at a time constant chart for ATC fuses - <a href="http://bussmann.com/SearchResults.aspx?search=atc+data&amp;amp;type=Omni" target="_blank">http://bussmann.com/SearchResults.aspx?search=atc+data&amp;amp;type=Omni</a>You&#039;ll see a 40A ATC is designed to pass 70A for about &amp;gt;15 sec before melting (average).A 30A ATC will pass 50A for about 20 sec.You can only get a rough estimate from the size of the fuses.&nbsp; There&#039;s know way to know whether the designer intended them as a form of protection against stress (blowing at the first sign of trouble) or protection from catstrophic failure (blowing just before the amp catches fire).You might be right that your amp can&#039;t do 1700w, but it could well do 1800 or 1900 if you&#039;re just looking at the fuses.</blockquote>

[QUOTE="n2audio, post: 4984510, member: 540940"] but that's not accurate, at least not based solely on fuse size. If you look at a time constant chart for ATC fuses - [URL="http://bussmann.com/SearchResults.aspx?search=atc+data&type=Omni"]http://bussmann.com/SearchResults.aspx?search=atc+data&type=Omni[/URL] You'll see a 40A ATC is designed to pass 70A for about >15 sec before melting (average). A 30A ATC will pass 50A for about 20 sec. You can only get a rough estimate from the size of the fuses. There's know way to know whether the designer intended them as a form of protection against stress (blowing at the first sign of trouble) or protection from catstrophic failure (blowing just before the amp catches fire). You might be right that your amp can't do 1700w, but it could well do 1800 or 1900 if you're just looking at the fuses. [/QUOTE]

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