This worked fine, the K2 at .3w, the KXPA100 at 30-something watts, the KPA1500 at 1400w, keyed simultaneously with an RCA Y-cable, as shown in the KXPA100 manual. My K2 at full throttle to KPA1500 direct put out 550w. Lots of fun, but too many ways to blow something(s) up to do every day. Next up: 600w HW-16 :-) 73 Eric WD6DBM