Hypex UcD400 reviewed

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#21
Jan-Peter said:
Some of our new OEM version;
http://www.hypex.nl/UcD182.jpg
http://www.hypex.nl/UcD402.jpg

You can see that the cols are quite near mounted to each other. We do not measure any real influence between the two amps.

I am hihly looking forward to the English translation of the Danish review!

Regards,

Jan-Peter
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Hi Jan-Peter,

What are the 470uF caps you are nowadays using on the UcD400? The ones look to have a blue sleeve. That output filter cap also looks like something different then normally used.

Best regards

Gertjan
 
#22
ghemink said:



Hi Jan-Peter,

What are the 470uF caps you are nowadays using on the UcD400? The ones look to have a blue sleeve. That output filter cap also looks like something different then normally used.

Best regards

Gertjan
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Hi Gertjan,

Nothing special, the two photos are from prototypes. The UcD402 is planned for a subwoofer/bassgitar amplifier. No need for any sofisticated audiophile rated components..... 😉

Regards,

Jan-Peter
 
#24
peranders said:
What do you think, you Hypex guys:


The Danish testers got rather pleased. :up: :nod: :drink:
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We are very pleased with this review!

Peranders, many thanks for the translation!

Although the UcD400 under review was one of the first version, we have done some interesting audiophile improvement with all newer revisions. In reliability and measurments performance is nothing changed, this was already quite ok.... 😉

Regards,

Jan-Peter
 
#26
Jan-Peter said:
Although the UcD400 under review was one of the first version, we have done some interesting audiophile improvement with all newer revisions. In reliability and measurments performance is nothing changed, this was already quite ok.... 😉
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It seems that your modules are even so good that our famous texian uses them. :nod: He used ICEPower before but for some reason he has switched. Can it be the price?
http://www.analogresearch-technology.com/VELLUTINO_CIRCUIT_DESCRIPTION.html
 
#28
peranders said:

It seems that your modules are even so good that our famous texian uses them. :nod: He used ICEPower before but for some reason he has switched. Can it be the price?
http://www.analogresearch-technology.com/VELLUTINO_CIRCUIT_DESCRIPTION.html
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He still use both brands.....

Regnad said:
Hi,

Would you folks be kind enough to post details on the chassis that the review unit was housed in? Is this available for DIY projects, perhaps?

Thanks a lot!
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We recommend these kits;
http://www.hypex.nl/applications/DIY_amp3.htm
http://www.hypex.nl/applications/DIY_amp.htm

Supplier of the cases;
http://www.speakerworld.nl

Regards,

Jan-Peter
 
#30
Jan-Peter said:
No, I am sorry these are only for OEM customers. The UcD402 is used in our soon-to-be-released 800W subwoofer plate amp. And is used in a www.hevos.nl Bassgitar amplifier.
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J-P:

Will this plate amp be available directly through Hypex, or will even the finished product be OEM-only?

Can you give us any more details? Features, pricing, availability date? This might be perfect for my next project, especially if theres an easy way to tweak it re: rumble filter and adding Linkwitz or bass shelf type circuit.

Thanks--

Greg
 
#31
#32
Is there any merit in buying DIY modules, mounting them in a case with some simple hardware and selling such a product as if it was some ultra-sophisticated audiophile thing?

Such manufacturers are not actually manufacturers but bare amateurs without a clue about circuit design finding their way to earn big money.

It's all a load of B.S. They will be bare amateurs until they become able to develop their own high performance class D stuff from scratch.

I have a three a yeard old brother that will become capable of wiring a DIY module to a transformer and a pair of capacitors quite soon... 😀😀😀
 
#33
Eva said:
Such manufacturers are not actually manufacturers but bare amateurs without a clue about circuit design finding their way to earn big money.

It's all a load of B.S. They will be bare amateurs until they become able to develop their own high performance class D stuff from scratch.
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We design and manufacture all of our equipment. We do not let outside agencies handle the design and construction of our products.
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http://www.analogresearch-technology.com/

Are you refering to this statement?

I think it's OK to buy highly advanced modules and package them, nothing wrong with that. It takes some skills to marketing also, not everyone are made for that.

http://ciaudio.com/D200.html

Isn't this a nice implementation of the Hypex modules?

Question: How many of the high-end customers know about electronics? <1% or less, am I wrong?
 
#34
Hi

I've also read the glowing UCD review from TNT. I'm clueless when it comes to sand electronics but this caught my interest... I see that it uses an Opamp (from various makers as option) input buffer, but the Analog-Research website above states that they use a Lundahl Input Transformer (switchable taps) then a Jfet buffer. The question is if anyone tried to do a something similar with Input Trafo but Tube buffer (if possible)? Making it sort of a hybid amp?

BTW, I saw this output cap (custom Auricap) upgrade for Ucd400/700 recently:

http://www.diycable.com/main/product_info.php?cPath=140&products_id=593

.. but I think any radial leaded polyprop/foil type cap will be a good replacement if it has he same lead spacing as the stock one w/ the approp V rating. The stock one looks like a polyester cap, but not sure about this. I'm not into boutique parts but are the lytic caps in the module long life / low esr types?

fred
 
#35
Eva said:

I have a three a yeard old brother that will become capable of wiring a DIY module to a transformer and a pair of capacitors quite soon... 😀😀😀
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Eva, please donot do this with him,
or Human Right activists would SUE you under "Child Labour" acts...

😀 😀 😀 😀 😀 😉
 
#37
Eva said:
Is there any merit in buying DIY modules, mounting them in a case with some simple hardware and selling such a product as if it was some ultra-sophisticated audiophile thing?
Click to expand...


no self-respecting manufacturers would do that.

However, Class D is a gold-rush now and if foolish people want to part with their money so eagerly, who are we to stop that?
 
#38
Eva said:
Is there any merit in buying DIY modules, mounting them in a case with some simple hardware and selling such a product as if it was some ultra-sophisticated audiophile thing?
Click to expand...
Probably, "Jocko Homo" uses Ice modules in his products and I think he also uses Hypex and you can read what he thinks about his products.

http://analogresearch-technology.com

However, in the past, Class D operation was not regarded as being worthy of audiophile consideration. With the new generation of Class D amplifier modules, they now are a serious option for audiophiles. We are pleased to be among the first to produce products using these new technologies
Click to expand...
 
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