I'm trying to learn about my GK 115 RBH cab, which I run with an 800RB. I've had the amp for 5 or 6 years - just got the cab (used) a month ago. At the first gig, I fried the tweeter. I assumed it was because the cab's tweeter is rated at 50 watts (so far as I could tell) and I was pushing 100 watts through it in bi-amp mode. When I removed the tweeter, I see it was a PAudio 20 watt. Apparently, that is the OEM tweeter. Can anyone help me out with the following questions: 1. What's up with the tweeter - is it 20 watts or 50? 2. Shouldn't the bulbs have fried before the tweeter, or are the bulbs bypassed in biamp mode? 3. I've ordered an X-Tealth (Foster-replacement) 100 watt tweeter to replace it. Freq. response 5Khz to 20Khz (if I remember correctly). It's only $50Cdn so if it's a dud - no great loss - but it seems to have better specs than the PAudio. Thoughts? 4. Does anybody know at what frequency the passive crossover in the cab crosses over? 4. In biamp mode, where should the crossover be set? 5. Any other comments, ridicule, bad jokes?