Anyone used the IRFP450 in a Zen

Shoog · 15th September 2002, 09:02 AM

Has anyone used the IRFP450 in the Zen. It seems to have a slightly higher input impedence than the IRFP044, but about the same input capacitance. Anyone got any ideas how it might sound when compared. I was thinking about buying up some cheap stock and using them to test my wiring and then possably upgrading to IRF044 later.

All ideas appreciated.
Shoog.

kirc · 15th September 2002, 10:03 AM

I use IRFP448 in my test version of Zen (part 2, fig.2). It's work OK ! There is no problem at all.

best regards,
Leon

Shoog · 15th September 2002, 06:46 PM

The extra resistance over a lower voltage version would sujest that these devises might heat up more. What Voltage are you running them at.

Petter · 15th September 2002, 07:46 PM

In the Zen, the transistors are in high resistance/dissipation mode almost all the time.

Petter

15th September 2002, 09:02 AM	#1
Shoog diyAudio Member Join Date: Aug 2002 Location: Eire	Anyone used the IRFP450 in a Zen Has anyone used the IRFP450 in the Zen. It seems to have a slightly higher input impedence than the IRFP044, but about the same input capacitance. Anyone got any ideas how it might sound when compared. I was thinking about buying up some cheap stock and using them to test my wiring and then possably upgrading to IRF044 later. All ideas appreciated. Shoog.

15th September 2002, 06:46 PM	#3
Shoog diyAudio Member Join Date: Aug 2002 Location: Eire	Any heat problems The extra resistance over a lower voltage version would sujest that these devises might heat up more. What Voltage are you running them at.

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15th September 2002, 07:46 PM	#4
Petter diyAudio Member Join Date: Jan 2001 Location: Scandinavia	In the Zen, the transistors are in high resistance/dissipation mode almost all the time. Petter

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