Wow...the 700W series 1 doing way over 625 Watts each channel into 4 ohms 50V RMS.
Blows the 10 amp line fuse with both channels at IKW audio power...no problems, no failure. Replace fuse and all fine! Leaving the 10 amp line fuses, Rail fuses at 8 amps. Perfect. High volume high speed fans keep the heat sinks warm, but not boiling!
Looks very clean on scope at 625 Watts per channel @ 4 Ohms.
Ready for the AR9 listening test!
The modified UPC1237 400W Relay board and 700W relay boards working together, no false shutoff! +/- 1V Offset detection verified and working perfect. Covers on and retested. Done.
Next project...Hafler preamp. See Pics