How to add lowpass to subwoofer

ShadowNeko

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When i enter anything into the lowpass section for the sub it immediately gets erased. How do i add a lowpass to the sub?
 

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whoareyou

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You set the lfe low pass on the speaker tab:

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Also observe that FL and FR has different bass offloading frequencies. Those two plus the LFE cutoff means that the subwoofer has three different lowpass frequencies here. Sometimes the number can be higher.

The subwoofer will have one correction filter for LFE, another for integration with FL and a third for integration with FR. And since there is only one line for the subwoofer in the crossover tab, there isn't enough room for this info there. But for bass offloading it will always be the mirror image of the high pass frequencies entered: The same frequency and the same XO width as the high pass side.
 
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kevinzoe

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Here is how I add my subs with their corresponding low-pass filters per your question . . .
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Hope this helps . . .
 

kevinzoe

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Bernt - the subs are labeled "Bass" and are the first and fourth channels
 

juicehifi

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That is a good solution, kevinzoe. For anyone who uses two subs and prefers stereo bass.
 

Ofer

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It could also be done with one sub but it depends on your audio interface hardware configuration. Some interfaces have channels 7/8 on the same output jack. In such a case one jack can "represent" 2 outputs. In AL you could add another channel to the sub it would be termed driver 1 and driver 2. Now it is possible to have HPF and LPF for each driver, just make sure you cross the right drivers. I have tried it and it sounded awful but maybe you will be more successful.
 
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