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-   -   What's so special about the UcD180 implementation in the Genesis GR180 amp (http://www.diyaudio.com/forums/class-d/153197-whats-so-special-about-ucd180-implementation-genesis-gr180-amp.html)

NicMac 10th October 2009 09:38 PM

What's so special about the UcD180 implementation in the Genesis GR180 amp
 
Hi all,
Does anybody recognize the yellow PSU bypass caps used on the Hypex UcD180ST modules in the Genesis GR 180 amp? Pictures can be found on the below link:

http://www.tnt-audio.com/ampli/genesis_gr180_e.html

I'm building an amp based on the Hypex UcD180HG (with HxR regs) and I'm trying to figure out what is just so fantastic about the high current "Dynamic Power Delivery Supply system" used in this >5k$ amp based on 100$ amplifier modules.

Thanks,
Nic

sq225917 10th October 2009 10:36 PM

Nothing, it's just a big stiff power supply like any other, of course.

NicMac 11th October 2009 03:28 PM

Quote:

Originally Posted by sq225917 (Post 1946915)
Nothing, it's just a big stiff power supply like any other, of course.

I guess the "of course" refer to the fact that this is the way that the audio industry does things, and not that it is the best way!?
I am myself trying to put together a regulated series supply for these modules.....

Mark Allen 11th October 2009 10:01 PM

They are some sort of polyprop cap. Can't tell wnat brand though. Overall I'm not impressed with the parts quality in that unit!! Xicon caps and a Chineese transformer... pleeze!

sq225917 12th October 2009 08:43 AM

NicMac, no, my comment was more based on the fact that audio companies do next to nothing, then charge you an extra $5000 for the privalige. Charging what Genesis do for a $220 Hypex unit and a $150 power supply should be criminal.

Javin5 12th October 2009 02:11 PM

Quote:

Originally Posted by NicMac (Post 1946893)

... Does anybody recognize the yellow PSU bypass caps used on the Hypex UcD180ST modules in the Genesis GR 180 amp? Pictures can be found on the below link:

Genesis GR 180 - Hypex-equipped digital power amplifier - [English]

I can't really exactly see on the picture where the yellow caps are connected. Are you sure these are power supply bypass caps? Or could these be large film caps to replace the original coupling caps? In any case, the fix doesn't look neat. I also think, that for the price they are charging, they could at least have used 180AD instead of the ST.

Kurt

NicMac 12th October 2009 02:33 PM

Quote:

Originally Posted by Javin5 (Post 1947965)
Are you sure these are power supply bypass caps? Or could these be large film caps to replace the original coupling caps?

No - I'm not sure if they are bypass or coupling caps. Would have to buy it to find out:no:

Quote:

Originally Posted by Javin5 (Post 1947965)
I also think, that for the price they are charging, they could at least have used 180AD instead of the ST.

Kurt

Yes - its pretty amazing...
But if you are not happy with it in the "standard" version you can always get an upgraded "Maximum Dynamic Headroom Reservoir" power supply, in which case you will have to spend another 5000$:eek:


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