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Class D Switching Power Amplifiers and Power D/A conversion

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Old 25th March 2005, 03:47 PM   #1
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Hi to evryone,

I am new in this field, but you made me curious, I want to build one! I am steel undecied between ZAPpulse and UDC, any suggestions?

What it's not realy clear to, me is the difference between them. From your posts I cannot see what are the sonic differences between the two.

Let me know, bye and have a nice weekend
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Old 26th March 2005, 08:15 AM   #2
IVX is offline IVX  Russian Federation
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But several formal specifications of the UcD is better -noise, THD, damping factor, cost..
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Old 28th March 2005, 03:21 AM   #3
ghemink is offline ghemink  Netherlands
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Originally posted by IVX
But several formal specifications of the UcD is better -noise, THD, damping factor, cost..

Yes, and UcD is easier to use, although the ZAPpulse 2.3 may have been improved and not have the issues of the 2.2SE.

I would go for UcD, it saves you a lot of money as well, use those for a good power supply.

Gertjan
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Old 28th March 2005, 09:19 AM   #4
Slash is offline Slash  Russian Federation
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Guys, I'm also new in class D amps. I'd like to build one. My requirements: it should be discrete, cheap and powerful (500w into 4 ohms). Will be used for my 500W car subwoofer. Documentation and layouts would be great.

*smps is complete

Could you please recommend me any schematics?
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Old 30th March 2005, 03:51 PM   #5
Matsen is offline Matsen  Sweden
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Dont forget the Tripath amps...

U can get som nice kits here: www.41hz.com

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Old 31st March 2005, 11:50 AM   #6
Slash is offline Slash  Russian Federation
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Matsen, Thank you. I will probably buy one. The price is good.
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Old 1st April 2005, 08:53 AM   #7
Matsen is offline Matsen  Sweden
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Slash... I'm aiming to buy an AMP2 from Jan at www.41hz.com but he is making a PSU board right now and I will wait for that board to be finished first...

The tripath won a duel between ICE and UcD180... Pretty much the same sound as the ICE-module but at a price that is 1/3 of the ICE-module....

Tripath vs Hypex vs ICE (In Swedish )
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Old 1st April 2005, 11:51 AM   #8
ghemink is offline ghemink  Netherlands
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Quote:
Originally posted by Matsen
Slash... I'm aiming to buy an AMP2 from Jan at www.41hz.com but he is making a PSU board right now and I will wait for that board to be finished first...

The tripath won a duel between ICE and UcD180... Pretty much the same sound as the ICE-module but at a price that is 1/3 of the ICE-module....

Tripath vs Hypex vs ICE (In Swedish )

In my case the Marantz amp that I have and that is using the same Tripath TA3020 chip was loosing big time from my UcD180s.

Gertjan
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Old 1st April 2005, 12:36 PM   #9
Pierre is offline Pierre  France
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What are those "issues" that the previous version of ZAP Pulse (2.2SE) had?
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Old 1st April 2005, 12:36 PM   #10
Slash is offline Slash  Russian Federation
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Guys, I'm going to build 2X600 watt class D amp (Amp2 from 41 hz). The sub I'm going to use is Audiobahn 12" (1KW (2x500w)).

Did anyone check the amp at such a high power? I'm very interested about the bass control because Audiobahns as far as I know are very hard to drive.
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