Customworks A400 mosfet amplifier

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
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.
 
Thanks xsmid4.

Here are some measurements with better resolution:
1kHz 10W load 4Ohm
An externally hosted image should be here but it was not working when we last tested it.


1kHz 100W load 4Ohm
An externally hosted image should be here but it was not working when we last tested it.


10kHz 10W load 4Ohm
An externally hosted image should be here but it was not working when we last tested it.


13+14kHz 100W load 4Ohm
An externally hosted image should be here but it was not working when we last tested it.


THD 72W 4Ohm
An externally hosted image should be here but it was not working when we last tested it.


What do you think? :cool:
 
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.