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Fs Zenon amp 400.00
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<blockquote data-quote="LBC" data-source="post: 7774182" data-attributes="member: 641642"><p>I see the exact same number of fets, just different screw down heat clamps. 50% more capacitance doesn't mean a whole lot as far as output goes. It's not much capacitance either way. I think for me the question is: will the performance be similar and if so, how similar? Which will perform better in my setup. From a quick look and a little common sense we know that the fets have to be exactly the same. THere is no question that it's the same board layout from the same build house. Since that's the case, adding more fets more times than not will require a redesign of the pcb. There needs to be spare room on the heatsink, spare room on the pcb. Then there is the added cost of the resistors (2 per fet) and zener diode (1 per fet). So with each fet you're looking at a couple of dollars of added cost. Then electrolytic capacitors aren't cheap either for ones with a temp rating that will last in a vehicle. 105C is pretty standard, and for the tiny ones you see there, you're looking at a dollar each probably. So if the sundown did have 2 extra fets and 6 extra caps, it would cost at least 20 dollars more each to make, with little to no performance increase. With the SAZ 2500d I'd say that 20 dollars is a pretty big percentage of the total production cost.... and for nothing.</p></blockquote><p></p>
[QUOTE="LBC, post: 7774182, member: 641642"] I see the exact same number of fets, just different screw down heat clamps. 50% more capacitance doesn't mean a whole lot as far as output goes. It's not much capacitance either way. I think for me the question is: will the performance be similar and if so, how similar? Which will perform better in my setup. From a quick look and a little common sense we know that the fets have to be exactly the same. THere is no question that it's the same board layout from the same build house. Since that's the case, adding more fets more times than not will require a redesign of the pcb. There needs to be spare room on the heatsink, spare room on the pcb. Then there is the added cost of the resistors (2 per fet) and zener diode (1 per fet). So with each fet you're looking at a couple of dollars of added cost. Then electrolytic capacitors aren't cheap either for ones with a temp rating that will last in a vehicle. 105C is pretty standard, and for the tiny ones you see there, you're looking at a dollar each probably. So if the sundown did have 2 extra fets and 6 extra caps, it would cost at least 20 dollars more each to make, with little to no performance increase. With the SAZ 2500d I'd say that 20 dollars is a pretty big percentage of the total production cost.... and for nothing. [/QUOTE]
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