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DIY For Audio
What Voltage Rails for 50w in 8 Ohm?
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<blockquote data-quote="undefined.za" data-source="post: 176344" data-attributes="member: 3032"><p>Well with 30Vac taps, you will end up with 42Vdc rails in theory, with actual rail voltages (after losses) being closer to 41Vdc.</p><p></p><p>If you want approx 36Vdc rails, you need a transformer with 25Vac taps, which will give you about 35Vdc.</p><p></p><p>Regarding transformer VA rating, the more the better! The problem with small VA transformers is bad regulation and low current capability, this means that when you drive the amp hard, the voltage it supplies drops and it struggles to accommodate the current demand which leads to early clipping.</p></blockquote><p></p>
[QUOTE="undefined.za, post: 176344, member: 3032"] Well with 30Vac taps, you will end up with 42Vdc rails in theory, with actual rail voltages (after losses) being closer to 41Vdc. If you want approx 36Vdc rails, you need a transformer with 25Vac taps, which will give you about 35Vdc. Regarding transformer VA rating, the more the better! The problem with small VA transformers is bad regulation and low current capability, this means that when you drive the amp hard, the voltage it supplies drops and it struggles to accommodate the current demand which leads to early clipping. [/QUOTE]
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DIY For Audio
What Voltage Rails for 50w in 8 Ohm?
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