filter corner frequency is around 25kHz, and triangle wave is 250kHz
so one decade away...
LC filter is second order so 40dB/decade attenuation
So fundamental amplitude of output pre filter square wave is divided by 100 (40 dB)
so it should be around 2Vpp (instead of 4vpp).
DC bus voltage is +/-82V at idle
and +/- 74V at max power 4 ohms load
Hmmm... I wouldn't say ideal.
Check capacitances (input capacitance: 14nF) and the diodes characteristics...
Not really suitable output device for class-d amp.
I'd rather use simple high power mosfets. There are many good devices on the market.
The choice is yours!
All the best,
PS.: I'm really courius about the amplifiers that manufactured by your company, I prefer studying hi-power technology. Shall you give us the web-address of your audio company?