Blog Forums DIY Speakers and Subwoofers Rotary Subwoofers Reply To: RE: Rotary Subwoofers



I hadn’t realised the amps were high passing at 20hz, although to be honest I’m normally using hired much higher end amps made in house by the same company the line arrays I use comes from.


looking into it it seems they are often using -12/octave filters probably to cheap out on the size of capacitor bank given that more and more power becomes required the lower you go. Although as previously mentioned you still get some output below 20hz. That said if you are using one of those amps enough below it’s rated power e.g. 2000W amp on a 500W sub I don’t see a reason electrically you couldn’t very carefully eq around the high pass on the way into the amp. DISCLAIMER-DO THIS AT YOUR OWN RISK

Josh Evans, Professional Live Sound Engineer, High End Commercial AV Install Technician

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