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Old 29th March 2008, 05:47 PM   #1
evad is offline evad  United States
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Default D amps than accept Digital In?

I'm researching digital 5.1 Pre/pros than output a LFE (analogue) and 5 digital outs. There are several, but i haven't found any reasonably(low) priced D power amps that accept a digital input.
I'm looking to hear from anyone who has such a HT set up.
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Old 30th March 2008, 12:34 AM   #2
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Contrary to what you might think from the letter "D" in the name (and the way people market them), but it is not all straightforward to take a digital data stream and direct it to the kind of pulse-width-modulated (PWM) signal that gets amplified in A class D amp.

Check out the forums here. Those digital input amps people are working on are VERY complicated!

--Buckapound
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Old 30th March 2008, 02:43 PM   #3
evad is offline evad  United States
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Old 30th March 2008, 02:50 PM   #4
evad is offline evad  United States
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Buckapound
Respectfully as far as I know D is a class,ie A AB H of amplification. I'm happy with my XR 57, but Panasonic may be getting out of the biz. What is the up grade path?
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Old 31st March 2008, 11:31 AM   #5
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Amplifier class D is not amplifie the digital signal but analog signal with switching
Tact is pure digital because it amplifie the digital signal without convert to analog signal
But many amplifier class D on market are not the same
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Old 31st March 2008, 03:37 PM   #6
evad is offline evad  United States
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Quote:
Originally posted by langtuhanoi
Amplifier class D is not amplifie the digital signal but analog signal with switching
Tact is pure digital because it amplifie the digital signal without convert to analog signal
But many amplifier class D on market are not the same

I believe I understand what you are writing, and I have begun reading this digital forum. Is Tact a classification of amplification or a brand name. Can anyone point me to the thread that discusses alternatives to an all digital AVR ( Panasonic XR 57) such as digital pre/pro to all digital amps.
Thank you for your patiences,
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