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Using HP/LP filters on amp

Old 04-18-2008, 06:51 AM
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Using HP/LP filters on amp

For my Audison LRx 2.9 amp, I'm trying to tweak the settings. Currently I have everything on full range (no filters). But since I only have 3-way components and no subwoofer, on some heavy-bass songs the midbass drivers can't handle the bass really well. So should I turn on the low-pass or high-pass filter to prevent the frequencies that my comps can't handle? And what frequency should I choose--anything below the specs of the speakers? Thank you
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Old 04-18-2008, 07:39 AM
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You're not using the HPF on the HU?
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Old 04-18-2008, 08:02 AM
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Originally Posted by nismos14
You're not using the HPF on the HU?


i have no idea--that thing has waaaay too many features for my tastes.
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Old 04-18-2008, 08:05 AM
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Maybe you should downgrade .

Go through the menus on the HU, turnt he HPF on, and set it to 63/80 depending on what it is on right now. I think it was on after install.
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Old 04-18-2008, 08:26 AM
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Originally Posted by nismos14
Maybe you should downgrade .

Go through the menus on the HU, turnt he HPF on, and set it to 63/80 depending on what it is on right now. I think it was on after install.

and that'll filter out the really lows that my mid-basses can't handle well?
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Old 04-18-2008, 11:31 AM
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Originally Posted by ElVito1981
and that'll filter out the really lows that my mid-basses can't handle well?
maybe...it depends what frequencies the mid ranges cant handle...a HPF only lets the speakers hit frequencies above the filter point... (i.e. a HPF at 90hz wont let the speakers hit a 60hz note which is deep bass)...so your best bet is to the the filter to HPF and I'd say dont go any lower that 80hz with the cut off point...even this may be too low you will know by listening
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Old 04-18-2008, 11:38 AM
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You have to remember that there will be a roll off, so your speaker will still play freq's below the crossover point, just attenuated quite a bit.
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Old 04-18-2008, 01:20 PM
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ok, so all these should be done on my head unit, not on the amp?
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Old 04-18-2008, 01:22 PM
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Yea.
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Old 04-18-2008, 01:41 PM
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Alright guys, I'll play with it this weekend and let you know. Thank you
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Old 04-21-2008, 07:19 AM
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Alright guys, I set the HPF to 80Hz, but there were still a boatload of features in the X-over settings that I wasn't sure about: High, Low, Pass, octave, slope, etc. What do I set those to?
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Old 04-22-2008, 11:02 AM
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can the X-over and PEQ on the CD7100 be turned off completely? I really hate all these settings to have to play around with.
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Old 04-22-2008, 11:04 AM
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Nope. You can set everythign to flat or 0.
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Old 04-22-2008, 11:46 AM
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How do I do that? There is no zero Hz for frequency though.
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