I bought my Genz Benz Streamliner 600 and my 210 cab at about the same time, 2 years ago. The 210 cab consists of a pair of Celestion BN10-200x 10" bass speakers, that handle some 600 watts. I thought it was a perfect match. I also use a few pedals, notably: Seymour Duncan Studio Bass compressor, Subterranea synth, DMB Bumble fuzz. For the last 2 years I have gigged incessantly with this exact combo of amp, cab, and pedals. A few weeks ago my cab was acting up, lost power, and a terrible sound was outputted. After a little testing, I discovered that the lower speaker is damaged (the higher speaker is fine). For the first year or so, I used the high-gain button on the Streamliner 600. For the second year, I decided to not use the high-gain button. To keep up with the drummer and the guitarist (using a Fender Deluxe), I tended to crank the master to 3:00 or higher. Bass at 9:00. Everything else around noon. My questions 1. Since the Streamliner 600 has a gain option, making the amp sound more "tubey," do I only get all 600 watts when I crank the gain knob on the high-gain setting? 2. How does adding synth or fuzz (on relatively high settings) affect the overall gain structure? Does it significantly add watts that could possibly exceed the limits of the speaker rating, causing it to fail?