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Old 12th May 2004, 07:06 AM   #1
knutinh is offline knutinh  Norway
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Default ICE/ class d amps used for PA/musical instruments?

Hello. I am investigating the use of these new micro amp modules for live sound reinforcement. I wonder why this isnt happening allready? I am interested in small PA and keyboard amplifiers / monitors. For these applications, light weight, small size would outweight a sound that may not be in the absolute high-end class.

PWM and switched amps got a bad rep for being unreliable and diffictul to repair in the old days. That would definately be a problem.

Does B&O/ICE sell those modules directly yo the end user? Anyone know where to buy them in the scandinavia?

with best regards
Knut Inge
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Old 13th May 2004, 12:21 AM   #2
Nisbeth is offline Nisbeth  Denmark
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ICEpower does not sell products to private individuals. Try LCaudio's ZapPulse modules instead (www.lcaudio.dk)


/U.
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Old 13th May 2004, 12:41 AM   #3
Keld is offline Keld  Sweden
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Default Re: ICE/ class d amps used for PA/musical instruments?

Quote:
Originally posted by knutinh
Hello. For these applications, light weight, small size would outweight a sound that may not be in the absolute high-end class.

I dont know about the sound quality, but here is an article where one Krell owner replaced his Krells with Ice power based amp after a comparison test. Its in swedish.
http://hem.bredband.net/b227650/Hifi/icekrell1.htm

BTW if you find the Ice modules for sale somewhere I would be very glad if you mailed me
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Old 13th May 2004, 01:28 AM   #4
imix500 is offline imix500  United States
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For professional use, check out http://www.dbaudio.com. I belive their amps are class D. They are widely used in the Broadway sound scene here in NY with great success. They're lightwieght, sound great and have DSP built right in!
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Old 13th May 2004, 07:32 AM   #5
knutinh is offline knutinh  Norway
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Thanks for the replies. Professional rack mountable amplifiers are typically to expensive and to heavy (those mentioned here were 15kg and up)

I`m talking about 2*100W or so to fit in a 30Kg (total) speaker.

Anyone willing to compare ICE modules to ZapPulse to D2audio to whatever?

BTW, what kind of powersupply do you need for these modules? A big transformer?

regards
Knut Inge
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Old 13th May 2004, 01:01 PM   #6
AndyB is offline AndyB  Norway
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Hi Knut Inge!

The ICE modules are used by EMBLA AUDIO
http://www.emblaaudio.no
These are sold by ELTEK:
http://www.mamut.com/dynabel
Hypex in Netherland will also soon have Class-D modules for DIY:
http://www.hypex.nl

BR AndyB
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Old 13th May 2004, 07:13 PM   #7
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Yes,

Indeed we will come with a DIY Class-D module.

Please take a look on the Photo.

This Module will be soon available!

Regards,

Jan-Peter

www.hypex.nl
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File Type: jpg ucd_180w low res 100k.jpg (43.6 KB, 1439 views)
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Old 14th May 2004, 12:43 PM   #8
knutinh is offline knutinh  Norway
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Hello, Jan Peter. What Kind of powersupply would one use to save weight? Are there suitable switch-mode powersupplies that together with these modules would form a complete ultralight medium powered amp?

regards
Knut Inge
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Old 14th May 2004, 12:53 PM   #9
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Hi Knut,

I am sorry but we don't have a SMPS powersupply. For this UcD180 we will recommend a 160VA transformer with 2 or 4 times 10.000uF/50V capacitors.

When the UcD180 are available (a few weeks from now) we will also have a powersupply available.

Jan-Peter

www.hypex.nl
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Old 15th May 2004, 04:19 PM   #10
km is offline km
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hi.

you may find what you search for here; www.cadaudio.dk

rgds - k madsen
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