Customworks A400 mosfet amplifier

[xsmid4]

I would like to draw attention to this amp, it was really good. Input stage contains J-FETs, error correction, 5 pairs of lateral mosfets Renesas. Quiescent current of 500mA and 2x400W / 4, see the Measurements.

http://www.customworks.cz/amplifiers/

even the price it quite low, considering the material used. Cooling of 500mA will need big heatsinks, its about 70W per channel, they prepare the box, but till now only amplifier modules are available. Maybe next months. I will watch this.

 

[hcrevize]

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Photo

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[Page.P]

Thanks xsmid4.

Here are some measurements with better resolution:
1kHz 10W load 4Ohm

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1kHz 100W load 4Ohm

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10kHz 10W load 4Ohm

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13+14kHz 100W load 4Ohm

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THD 72W 4Ohm

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What do you think? 😎

 

[PMA]

How about schematics? Many members might be interested in it. You do not need to show component values.

Regards,

 

[hcrevize]

THD HYPA A400:

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[hcrevize]

4ohm 10kHz 1V/d:

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4 ohm 100kHz 1V/d:

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