UCD700AD reviewed

Pasi P · 8th March 2006, 07:40 PM

FYI,

UCD700AD is reviewed in Finnish hifi magazine 'Hifilehti'.
Very shortly, listener found sound clear, open, quite transparent but sometimes bit hard and "sterile".
Points given from overall sound quality is 8,3. Best commercial amps around 500€ has got even better points. Reviewer was one of the most experienced and appreciated reviewer in Finland.
Measurements are quite same than in Hypex specifications.
Setup was separate mono amps using Hypex UCD700 power supply.

classd4sure · 8th March 2006, 07:55 PM

Stock module, AC coupled with electrolytics, stacked film filter caps?

Pasi P · 8th March 2006, 08:12 PM

I think so but not yet sure. I have asked more detailed information from magazine.

Pasi P · 8th March 2006, 08:39 PM

One thing about measurements.
Measured power consumption without signal was 38W and with 10W/channel output power 55W. So efficiency is not good in low output power. Why?

SSassen · 9th March 2006, 02:59 PM

Hi Pasi,

The UcD700 runs off of ~90V rails, with a 90% efficiency you still dissipate quite a few watts more than a UcD180 with ~45V rails.

Best regards,

Sander Sassen
http://www.hardwareanalysis.com

Duck-Twacy · 9th March 2006, 06:55 PM

Quote:

MODUULEISTA MONEEN MENOON

Testasimme itserakentelijoille tarkoitetuista Hypexin vahvistinmoduuleista valmistetut monopÃ¤Ã¤tteet.

http://www.hifilehti.fi/lehti/

Completely uncomprehendable to me

That was compared to an amp from around 500 euro??

Jan-Peter · 24th March 2006, 08:04 AM

We have a translation in English of the Finish review;
http://www.hypex.nl/docs/hifi.pdf

An Italian HiFi Magazine has wrote this review;
http://www.hypex.nl/docs/AR266%20-%20Hypex.pdf

On the following webpage we will post all current and future reviews;
http://www.hypex.nl/reviews.htm

Regards,

Jan-Peter

Duck-Twacy · 24th March 2006, 08:15 AM

Thats a nice clean case those Italians are using. Are those toroids also from Hypex??

Jan-Peter · 24th March 2006, 08:39 AM

Quote:

Originally posted by Duck-Twacy
Thats a nice clean case those Italians are using. Are those toroids also from Hypex??

Yes we have had two samples of these transformers, however we are waiting on some new samples with extra internal screens to decrease noise.

Regards,

Jan-Peter

Duck-Twacy · 24th March 2006, 10:04 AM

Quote:

Originally posted by Jan-Peter

On the following webpage we will post all current and future reviews;
http://www.hypex.nl/reviews.htm

Regards,

Jan-Peter

Btw the translation of the TNT review is also online
http://www.tnt-audio.com/ampli/udc180_e.html

8th March 2006, 07:40 PM	#1
Pasi P diyAudio Member Join Date: Jan 2004 Location: Finland	UCD700AD reviewed FYI, UCD700AD is reviewed in Finnish hifi magazine 'Hifilehti'. Very shortly, listener found sound clear, open, quite transparent but sometimes bit hard and "sterile". Points given from overall sound quality is 8,3. Best commercial amps around 500€ has got even better points. Reviewer was one of the most experienced and appreciated reviewer in Finland. Measurements are quite same than in Hypex specifications. Setup was separate mono amps using Hypex UCD700 power supply. __________________ -Pasi

8th March 2006, 08:12 PM	#3
Pasi P diyAudio Member Join Date: Jan 2004 Location: Finland	I think so but not yet sure. I have asked more detailed information from magazine. __________________ -Pasi

8th March 2006, 08:39 PM	#4
Pasi P diyAudio Member Join Date: Jan 2004 Location: Finland	One thing about measurements. Measured power consumption without signal was 38W and with 10W/channel output power 55W. So efficiency is not good in low output power. Why? __________________ -Pasi

9th March 2006, 02:59 PM	#5
SSassen diyAudio Member Join Date: Mar 2005 Location: Purmerend	Hi Pasi, The UcD700 runs off of ~90V rails, with a 90% efficiency you still dissipate quite a few watts more than a UcD180 with ~45V rails. Best regards, Sander Sassen http://www.hardwareanalysis.com __________________ Acception without proper examination equals religion Condemnation without proper examination equals prejudice

24th March 2006, 08:15 AM	#8
Duck-Twacy diyAudio Member Join Date: Oct 2002 Location: Holland, The Hague	Thats a nice clean case those Italians are using. Are those toroids also from Hypex?? __________________ Is that all there is?


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

8th March 2006, 07:55 PM	#2
classd4sure Account Disabled Join Date: Feb 2004	Stock module, AC coupled with electrolytics, stacked film filter caps?

24th March 2006, 08:04 AM	#7
Jan-Peter diyAudio Member Join Date: Sep 2003 Location: -	We have a translation in English of the Finish review; http://www.hypex.nl/docs/hifi.pdf An Italian HiFi Magazine has wrote this review; http://www.hypex.nl/docs/AR266%20-%20Hypex.pdf On the following webpage we will post all current and future reviews; http://www.hypex.nl/reviews.htm Regards, Jan-Peter

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
HT Omega Claro Plus+ reviewed	NurEinTier	Digital Source	0	15th December 2007 11:13 AM
Hypex UcD400 reviewed	peranders	Class D	41	5th October 2006 12:16 AM
SI´s Son of T-Amp reviewed in 6moons	PauSim	Class D	15	9th October 2005 10:45 PM
Luxman FM tuner reviewed; Review # 73	3moons	Analogue Source	0	28th June 2004 04:48 AM
Need these sub plans reviewed before I start the build	AudioIsFun	Subwoofers	18	26th January 2004 12:53 AM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read