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HELP! Separates Class D Amp w/ AV Processor

gsp1971

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If you ever want a subwoofer and use the LFE channel you kinda need one.
Not neccesarily.
There are 2-ch amps with pre-out and/or subwoofer out.
Also, you can connect an active subwoofer just with speaker wire to the speaker terminals of your amp, in parallel with the speakers. The subwoofer presents a high impedance load to the stereo amplifier and takes very little current, so it may be connected in parallel with the main speakers with no adverse effects.
 

Koeitje

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Not neccesarily.
There are 2-ch amps with pre-out and/or subwoofer out.
Also, you can connect an active subwoofer just with speaker wire to the speaker terminals of your amp, in parallel with the speakers. The subwoofer presents a high impedance load to the stereo amplifier and takes very little current, so it may be connected in parallel with the main speakers with no adverse effects.
That's not the point I was making, you need some way to either send the LFE channel to the sub separately or be able to mix it into the 2.0 output and use the high-pass option on your amplifier to make sure your main speakers don't get the extreme low frequency output of the LFE channel.
 
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