Want to swap: Hypex UcD400 ST v8 for v6

Duffy Moon · 11th June 2011, 05:42 PM

I bought a used version 6 UcD400 ST and bought a version 8 from Hypex. Sadly, Hypex upped the power requirements so my (max 58V) power supplies won't work with the newer version.

Does anyone have a lower voltage version they'd be willing to exchange (new for old!). It hasn't even been powered up (I don't have the power... Captain). I'm in the UK, but will trade with anywhere.

UrSv · 11th June 2011, 06:29 PM

Why wouldn't it work just fine? 58 V is just perfect.

Item Symbol Min Typ Max Unit
Power supply voltage VB 45 57 67 V

Duffy Moon · 11th June 2011, 10:44 PM

I only wish I knew! My version 6 powers up fine, but I tried the version 8 with 58V and the LED refuses to light up. I sent it back to Hypex believing it to be faulty, but their tests proved otherwise.

Frank Veldman at Hypex told me it needs 65V at least.

I'm glad I'm not the only person who's confused.

UrSv · 13th June 2011, 06:40 PM

Somebody is confused. The manual AND web page clearly states that 58 V would be fine and in fact 65 VDC would be the absolute highest recommended.

ELECTRICAL FEATURES:
- Power supply voltage: +/- 45-65V
- Unit shuts down when either rail exceeds 68V
- Power rating: 400Wrms @ 4ohm

Duffy Moon · 13th June 2011, 08:25 PM

Quote:

Originally Posted by UrSv

Somebody is confused. The manual AND web page clearly states that 58 V would be fine and in fact 65 VDC would be the absolute highest recommended.

ELECTRICAL FEATURES:
- Power supply voltage: +/- 45-65V
- Unit shuts down when either rail exceeds 68V
- Power rating: 400Wrms @ 4ohm

Well I thought I was confused, but I am reassured to discover that I wasn't.

UrSv · 14th June 2011, 10:55 AM

You're not the one being confused for sure. That doesn't solve your problem of the unit not powering up but at least you're good to go troubleshooting with your existing module. Check your muting setup...

Duffy Moon · 14th June 2011, 09:18 PM

Quote:

Originally Posted by UrSv

You're not the one being confused for sure. That doesn't solve your problem of the unit not powering up but at least you're good to go troubleshooting with your existing module. Check your muting setup...

I've been enlightened. The supply needs to be bipolar (I thought that was a disorder

) so my supplies have to be in parallel apparently.

I do think Hypex could make it a bit more clear.

11th June 2011, 05:42 PM	#1
Duffy Moon diyAudio Member Join Date: Jul 2008	Want to swap: Hypex UcD400 ST v8 for v6 I bought a used version 6 UcD400 ST and bought a version 8 from Hypex. Sadly, Hypex upped the power requirements so my (max 58V) power supplies won't work with the newer version. Does anyone have a lower voltage version they'd be willing to exchange (new for old!). It hasn't even been powered up (I don't have the power... Captain). I'm in the UK, but will trade with anywhere.

11th June 2011, 06:29 PM	#2
UrSv diyAudio Member Join Date: Jan 2002 Location: Sweden	Why wouldn't it work just fine? 58 V is just perfect. Item Symbol Min Typ Max Unit Power supply voltage VB 45 57 67 V __________________ UrSv Those who say it can't be done should not stop those who are doing it.

13th June 2011, 06:40 PM	#4
UrSv diyAudio Member Join Date: Jan 2002 Location: Sweden	Somebody is confused. The manual AND web page clearly states that 58 V would be fine and in fact 65 VDC would be the absolute highest recommended. ELECTRICAL FEATURES: - Power supply voltage: +/- 45-65V - Unit shuts down when either rail exceeds 68V - Power rating: 400Wrms @ 4ohm __________________ UrSv Those who say it can't be done should not stop those who are doing it.

14th June 2011, 10:55 AM	#6
UrSv diyAudio Member Join Date: Jan 2002 Location: Sweden	You're not the one being confused for sure. That doesn't solve your problem of the unit not powering up but at least you're good to go troubleshooting with your existing module. Check your muting setup... __________________ UrSv Those who say it can't be done should not stop those who are doing it.

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11th June 2011, 10:44 PM	#3
Duffy Moon diyAudio Member Join Date: Jul 2008	I only wish I knew! My version 6 powers up fine, but I tried the version 8 with 58V and the LED refuses to light up. I sent it back to Hypex believing it to be faulty, but their tests proved otherwise. Frank Veldman at Hypex told me it needs 65V at least. I'm glad I'm not the only person who's confused.

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