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Old 21st February 2011, 10:19 PM   #1
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Default transformer wattage

so for example the transformers voltage is ac20v-0-ac20v and the amplifier is 2x200watt. my question is what if i put on it a transformer that is ac20v-0-ac20v but the wattage is 500 or less for example 380watt , and even less or even more like 1000watt or 300watt. what hapens to the amplifier will i burn it if the wattage is more than it is itself or it can go to some border, like if the amp is 2x200watt and the transformer ac20v-0-ac20v - 500,600,700 or 1000watt.
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Old 21st February 2011, 11:04 PM   #2
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A higher power rating wont blow up your amp.

But a higher voltage might.
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Old 21st February 2011, 11:07 PM   #3
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so as still as the ac is 20v the higher watt like 1000 or more doesnt matter?
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Old 21st February 2011, 11:09 PM   #4
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20 volts is 20 volts no matter what the power of the transformer.

So long as the power of the transformer at least matches the amplifiers requirements there shouldnt be a problem.
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Old 21st February 2011, 11:11 PM   #5
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thanks
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Old 22nd February 2011, 12:12 AM   #6
Minion is offline Minion  Canada
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And 20v will not put out 2 x 200w ...... you might get 70w into 4 ohms out of a 20v 0v 20v transformer ....... unless several chips are bridged and paralelled
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Old 22nd February 2011, 12:15 AM   #7
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what do you think about this amp i'll be statisfied if it output at least 150watt 2PC TDA8920 BTL 2.0 Audio Amplifier AMP Kit 200W+200W - eBay (item 260708920904 end time Mar-16-11 01:10:07 PDT)
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Old 22nd February 2011, 12:35 AM   #8
Minion is offline Minion  Canada
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Thats a class D amp so they are much more efficient that yer standard amp , they use 2 class D amps bridged to get that power but it still won"t put out 200w , each chip can put out 80w at 2 x 30v DC , so bridged you will get a max of 160w ......
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Old 22nd February 2011, 12:42 AM   #9
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Quote:
Originally Posted by Minion View Post
Thats a class D amp so they are much more efficient that yer standard amp , they use 2 class D amps bridged to get that power but it still won"t put out 200w , each chip can put out 80w at 2 x 30v DC , so bridged you will get a max of 160w ......

i know that it will put out bridged 2x200 as it says or 160 real , so what do u think what transformer do i need volt and wattage?
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