drvnbysound
Senior Member
If you're going to go the component crossover route, I'd suggest a 6dB (first-order) low-pass crossover. This would only consist of a single inductor wired in series with the speaker/subwoofer.
Having said that, it's hard to say that this will actually resolve the issue. Here's why... I assume that the subwoofer used (the one humming) has a LPF built-in already; that should be filtering any high frequency that's on the line already... so this may just end up being pre-filtering, which may not even have an effect. Particularly if the frequency of issue is in the band that you'd want your sub to reproduce (e.g. 60Hz).
Having said that, it's hard to say that this will actually resolve the issue. Here's why... I assume that the subwoofer used (the one humming) has a LPF built-in already; that should be filtering any high frequency that's on the line already... so this may just end up being pre-filtering, which may not even have an effect. Particularly if the frequency of issue is in the band that you'd want your sub to reproduce (e.g. 60Hz).