escottl92 Posted July 18, 2019 Report Share Posted July 18, 2019 I have an Ampere 7500.1 mono amp, I am wondering what people are setting there subsonic level too? Or if your even using it. Also LPF should set too? Thanks for help Link to comment Share on other sites More sharing options...
Ripkon Posted July 18, 2019 Report Share Posted July 18, 2019 24 minutes ago, escottl92 said: I have an Ampere 7500.1 mono amp, I am wondering what people are setting there subsonic level too? Or if your even using it. Also LPF should set too? Thanks for help Depends on you box and subs. List that info. My box is tuned to 32hz SSF around 26 Link to comment Share on other sites More sharing options...
escottl92 Posted July 18, 2019 Author Report Share Posted July 18, 2019 Box is 13cuft tuned 32-34 200sqin port Link to comment Share on other sites More sharing options...
Mike4068 Posted July 19, 2019 Report Share Posted July 19, 2019 Depends on your slope. If 12db/oct set it just below tuning. If 24db/oct set it half an octave below tuning frequency. Link to comment Share on other sites More sharing options...
escottl92 Posted July 19, 2019 Author Report Share Posted July 19, 2019 How do I know what my slope is? Link to comment Share on other sites More sharing options...
Joshdashef Posted July 19, 2019 Report Share Posted July 19, 2019 2 hours ago, escottl92 said: How do I know what my slope is? Usually says something in the manual of the amp. If not check out online SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
escottl92 Posted July 19, 2019 Author Report Share Posted July 19, 2019 Subs are 2 18” FI Team 4 Link to comment Share on other sites More sharing options...
escottl92 Posted July 19, 2019 Author Report Share Posted July 19, 2019 It’s 24db/oct slope Link to comment Share on other sites More sharing options...
Mike4068 Posted July 19, 2019 Report Share Posted July 19, 2019 Nice subs, I almost got a team but went with the sp4 plus. As for your lpf that will depend on the slope too. Note that it may be different from the slope of your infrasonic filter. If it's 12db/oct then a good place to start would be between 60 and 65 hz and if it's 24db/oct then start at 80. Link to comment Share on other sites More sharing options...
Kyblack76 Posted July 19, 2019 Report Share Posted July 19, 2019 The settings are variable for a reason. What is good for me, may not be for you. Adjust to your liking, or to YOUR set up/gear. Like the last post. My low pass started at 45-50. And fuck a high pass(subsonic). That is what I wanted to play. SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options...
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