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Old School Soundstream Repair
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<blockquote data-quote="akheathen" data-source="post: 8558791" data-attributes="member: 629234"><p>i would never mod an a/b soundstream to a class a, or high bias. here is why: a 1000watt rms ab has power fets that are rated to support less than 900 continuous, and an output section capable of over 2k.... so, if you go class a, you have to subtract the bias power from the musical power.... so, after figuring the bias power, and an output stage built to react differently, you will end up spending 600 to turn a 1k into a 200, that will likely blow the power section. if you want a class a, buy a class a. they are built differently..... if you want to upgrade one of those ab with a beefier power supply, that's a much better option, and you can go higher bias on that, with the same class a performance.</p></blockquote><p></p>
[QUOTE="akheathen, post: 8558791, member: 629234"] i would never mod an a/b soundstream to a class a, or high bias. here is why: a 1000watt rms ab has power fets that are rated to support less than 900 continuous, and an output section capable of over 2k.... so, if you go class a, you have to subtract the bias power from the musical power.... so, after figuring the bias power, and an output stage built to react differently, you will end up spending 600 to turn a 1k into a 200, that will likely blow the power section. if you want a class a, buy a class a. they are built differently..... if you want to upgrade one of those ab with a beefier power supply, that's a much better option, and you can go higher bias on that, with the same class a performance. [/QUOTE]
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