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Another Sub Q: Is my sub mismatched with speakers?

I have floorstanding speakers that go from 35Hz on up. I have a subwoofer that the lowest it will crossover is 50Hz. Are my speakers and subwoofer competing at some of the same frequencies? I read that the subwoofer should start crossing over at about 5Hz below the lowest the mains will go. In other words, my sub should be crossing over at 30Hz to match up better with my mains, right?

Am I nuts here?
matchstikman

Showing 1 response by elevick

elevick
2,638 posts
 
Are you using the crossover in the sub? Does your preamp have a crossover built in? If you are running full range to your speakers and full range to the sub, you will get some overlap with a crossover at 50hz. Remember that most crossovers are not 1st order, so you will get a gradual roll-off over a 12db to 18db range. The only way to avoid this is to have the system crossed over between the pre and power amps or between the amp and the speakers so the sub won't get too much of the same signal.
Some very high end subs will allow you to adjust for a good blend.
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