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Nuforce........have you heard of it?


Speedball

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Speedball,

Nuforce is not really anything new--another analog Class D. UcD is better.

It uses the more or less the same topology as the UcD--but is a much clumsier attempt.

It has had lots of problems (see Nuforce forum at audiocircle, or the new 6moons article).

Too much EMI.

More distortion than UcD.

Etc....

Mark

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I heard a NuForce amp at an Audio Circle event a couple of months ago (hosted by Arthurs). We did not get to hear it with Klipsch, but with Dunlavy SC IVA speakers, I was not really impressed with the Nuforce. The Halcro amp that was also there was a much better amp (IMO of course).

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Seadog,

Was that Halcro's little Class D: Lyrus?

Good to know it sounds fine. There has been a suspicious lack of data at Halcro--so no one really knows how well it performs. The Nuforce example shows how hard it can be to actually execute a good idea.

Is the Lyrus sold as individual channel modules?

Mark

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Seadog,

Was that Halcro's little Class D: Lyrus?

Good to know it sounds fine. There has been a suspicious lack of data at Halcro--so no one really knows how well it performs. The Nuforce example shows how hard it can be to actually execute a good idea.

Is the Lyrus sold as individual channel modules?

Mark

No, it was actually a 5-channel HT amp, but it was only set up for two channel that afternoon. I think it was the MC50. It sounded very good, second only (IMO) to the Dodd tube monoblocks that were also there that day.

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Seadog,

I think that was the Lyrus.

I looked around the Halcro site a bit today and looking at the Lyrus by itself is not very clear....but when looking at the Multi Channel (2-7) amps they all have the Lyrus logo--and seem to use the Lyrus modules.

http://www.halcro.com/logic/pdf/MC50_diagram.pdf

It is still not clear to me if you could buy/use the single Lyrus channel modules as mono-blocks.

Mark

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Tony,

Nuforce does not use any other manufacturers chip/module--they make their own Class D amp.

FYI, there are about 20+ companies making Class D chips, etc., including Nuforce/Nphysics (Nuforce is a discrete design--no chip, like Hypex).

The ICEpower chips are being used by a bunch of amp makers. It does seem kind of funny that when you pop the lid off a $31,000.00 Rowland 301 amp you have a Bang & Olufsen chip.

Mark

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