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DIY For Audio
DIY Power Amplifier: PALADIN SM-150
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<blockquote data-quote="GECO" data-source="post: 949253" data-attributes="member: 415"><p>I have the same scenario with the vangaurd. I can run rails up to 100v but prefer not to. The reason being that the higher the voltage the more strain in put onto the VAS transistors the hotter they run and the question remains have they been designed to be stressed as much. For the output the same. You will need bigger heatsinks for higher load speakers. It come down more of everything. </p><p></p><p>And as Gavin mentioned. The input stage runs its own power supply and the design should ideally be 10v higher than the output. That is something i have been doing for over 20 years now</p><p></p><p>Rather than trying to bump the wattage i would recommend over engineering the transformer. I prefer to use 3 to 4 the required transformer. Going smaller on the output stage smoothing caps and a very well regulated low impedance input stage power supply You get a much better sound that way than going to output power capability</p></blockquote><p></p>
[QUOTE="GECO, post: 949253, member: 415"] I have the same scenario with the vangaurd. I can run rails up to 100v but prefer not to. The reason being that the higher the voltage the more strain in put onto the VAS transistors the hotter they run and the question remains have they been designed to be stressed as much. For the output the same. You will need bigger heatsinks for higher load speakers. It come down more of everything. And as Gavin mentioned. The input stage runs its own power supply and the design should ideally be 10v higher than the output. That is something i have been doing for over 20 years now Rather than trying to bump the wattage i would recommend over engineering the transformer. I prefer to use 3 to 4 the required transformer. Going smaller on the output stage smoothing caps and a very well regulated low impedance input stage power supply You get a much better sound that way than going to output power capability [/QUOTE]
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DIY & Tutorials
DIY For Audio
DIY Power Amplifier: PALADIN SM-150
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