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<blockquote data-quote="Per Heldal" data-source="post: 132326" data-attributes="member: 8380">Re: newbie question about HPF on mainsHPF filters are your friends, as someone mentioned above. I&#039;d also say that they are very good friends for your amps and speakers too. There&#039;s a lot to gain by avoiding that amps and speakers waste their energy on frequencies they are not designed to be able to reproduce. Few amps and speaker-cabs have built-in filters to remove frequencies it isn&#039;t able to handle well, and significant energy may be lost trying to accomplish the impossible. This becomes apparent if you have a modular rig where you use different bits for different purposes. For example will a two-way 12&quot; or 15&quot; active cabinet that works well as a full-range cab with no HPF for small events appear much louder and capable of significantly bigger tasks when it is paired with a woofer that relieves it from any duties below 120 or 150Hz.</blockquote>

[QUOTE="Per Heldal, post: 132326, member: 8380"] Re: newbie question about HPF on mains HPF filters are your friends, as someone mentioned above. I'd also say that they are very good friends for your amps and speakers too. There's a lot to gain by avoiding that amps and speakers waste their energy on frequencies they are not designed to be able to reproduce. Few amps and speaker-cabs have built-in filters to remove frequencies it isn't able to handle well, and significant energy may be lost trying to accomplish the impossible. This becomes apparent if you have a modular rig where you use different bits for different purposes. For example will a two-way 12" or 15" active cabinet that works well as a full-range cab with no HPF for small events appear much louder and capable of significantly bigger tasks when it is paired with a woofer that relieves it from any duties below 120 or 150Hz. [/QUOTE]

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