Tazzy said:I'm building it to power a Infinity Kappa Perfect 10 in a sealed enclosure.
About the P68:
I'm building it with the extra output transistors.
For the PSU I'm planning to use a 500va with double secondairies at 40v. I'm planning to use 2x 56uF and a 2Mh coil between the caps for each rail.
Tazzy said:Guess I made some mistakes
Jonathan M said:Just signed up
Feel free to post comments/questions etc. Rod was very helpful whilst building (though I didn't bug him too much
I just used the 6 output devices, and it's running off a 300W amp with 6000uF of filtering per rail.
Have yet to receive the driver for the sub, so can't comment too much on the power output etc.
For the Heatsink, it's a 300x75x50mm job from Dick Smith Electronics here in NZ (Cost US$15) It was drilled and tapped.
Heatsink get's warm, but no where near hot. One thing to watch is the driver heatsink. I originally made mine to Rod's specs, but have found it gets quite hot as it is. (You can hold on to it, but it is uncomfortable) I bolted the smaller one onto a piece of aluminium U-tubing and now it runs quite a bit cooler. I'd suggest making a bigger driver heatsink and bending it so as it bolts to the main Heatsink.
PM me if you want more info on anything.