Ended up puting in a pair of split VDO Dayton MPC1700, which are 6.5" and they seem to do a much better job and seem to be very well made -high quality, made in Denmark. Hade to mount the separate tweeters on the original grill behind the mounting bolt. That left the main 6.5 inch cone in the clear.

Still haven't found out what the output power level is of the amp ?

Seedar.