For Christmas I got a R600 carvin head with the carvin 2x10 and a 1x15. I was wondering how I can get the maximum output from the amp without blowing the 2x10. So far I haven't pushed the amp over about 5 and I still have alot of compression on but occasionally when I'm slapping the amp will cut off. In the manual it says that the amp will cut off if it's in danger of blowing one of the speaker cabitnets. The 2x10 has a handling capacity of 400w and the 1x15 has a handling capacity of 600w. I figured that since the head was 600w and I was playing briged at half volume with compression I wouldn't be anywhere near blowing the speakers. I usually just play on about 3 when I jam at home but if I ever wanted to do a small live gig I would want to be able to crank it a little higher without worrying about it cutting off. If anyone has any suggestions or similar problems let me know.