Just when I thought that I had finished my EQing experiment, I upgraded my SVS driver and had to start all over again. I managed to get a good house curve (except for a null at 32-35Hz). In fact, with the old driver, my nulls could be boosted for a nice house curve. However, with the new driver, boosting it more than 3db does not seem to help. My second part of the exercise was to measure the overall frequency response of both the mains and the sub. Since there was no way of using the ETF software (as one of my crossovers is controlled by the DVD player), I used the Stryke Bass CD to plot the frequency response for two crossovers - 80Hz - set on the pre-amp fed by an external DAC. 100Hz - set on the DVD player (speakers set to SMALL) With either of these crossovers, my frequency response measurements are all over the place. The nice house curve is gone!. How do I get both the mains (L+R) and the sub EQed using ETF with the 80Hz crossover? I don't think I can use ETF to measure the frequency response with the 100 Hz crossover unless I burn a test CD. Suggestions?