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Class D Switching Power Amplifiers and Power D/A conversion

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Old 28th November 2012, 11:24 PM   #1
sabio0 is offline sabio0  United States
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Join Date: Nov 2012
Default Class D VS. Class T, Help setup with passive speaker

I just purchased SP-BS21-LR ( - Pioneer SP-BS21-LR Bookshelf Loudspeakers Pair) and I am new to dealing with passive speaker.
I'm trying to hook these speakers up to my computer.

What's the difference b/w class-D and class-T amplifier?

I was thinking of buying this Class -T amplifier ( LP-2020A+ Lepai Tripath Class-T Hi-Fi Audio Mini Amplifier with Power Supply: Electronics)

Would this be a good match? I see that amplifier Watts and impedance is smaller than the speaker. What's the consequence of using this amplifier instead of receiver that matches Wattage and impedance of speaker?

Also, to set up all these, what kind of cables will I need??

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Old 29th November 2012, 04:37 PM   #2
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Join Date: Nov 2012
Location: Raleigh, NC
Class T is a marketing name for Tripath circuits implementing simple class D circuits in single IC solutions. So all class T are class D but only Tripath amps are class T.

I have the same speakers. The TA2020 is a little weak for these speakers so don't expect a lot of bass. You need a beefier amp for that. But for near field use like on a computer desk (within 3 to 4 feet of the speakers) the loudness and quality of sound is excellent.

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