17Hz is below the threshold of human hearing. Hearing starts to fall in sensitivity in the first octave (20Hz to 40Hz). You can go ahead and calibrate down to 17Hz, but all you are doing is calibrating vibrations, not sound. The top octave of a subwoofer (40Hz to 80Hz) is MUCH more important to...
We rough calibrated down to 20. The sub goes further I think, but below 40Hz, calibration isn't as important. The upper octave from 40 to 80 is much more important. I have 15 inch 7 way custom studio monitors from the 70s for my mains. I've never needed a sub before this. But I moved into a new...
No matter what speaker you use, it won't be flat out of the box. That's because the room has as much of an impact on the response as the speakers do. In theory, any sub capable of producing sound loud at all frequencies can be made flat through equalization .It's easier to pull things back be...
Do you ever use your sub for music? That is what separates the "men from the boys" when it comes to performance. I judge subs by taking music with a descending bass line where every note is given even weight and listening to hear sections of the response that dip or peak in volume. If you can...
I'm not quite sure what is being tested here... is it volume and extension? Because that isn't the problem with most subs. Most of them can go low and loud, but that doesn't necessarily sound good (sensuround sounded lousy in theaters!) Getting a smooth response and even dynamics that works in...