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Amp subsonic filters?

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=35393
Printed Date: July 18, 2025 at 8:23 PM


Topic: Amp subsonic filters?

Posted By: onsatmex5
Subject: Amp subsonic filters?
Date Posted: July 11, 2004 at 9:42 AM

I have the kicker Model KX850.2 on order, does this amp have a subsonic filter? I hear subsonic filter are good if you have a ported box, and I do. is this amp ok to use with a ported box, or do I need to get a subsonic filter?



Frequency Response: 20Hz-20kHz; +0, -1dB
Input Sensitivity: High Level 340mV-10V, Low Level 170mV-5V
Signal-to-Noise Ratio: >95dB, a-weighted, re:rated power
Active Crossover: 12dB/Octave, variable 50Hz-200Hz, selectable high pass, low pass, or all pass;KX100.2 hig or low fixed @ 80Hz
KICKBass Boost: Variable to +18dB, centered @ 40Hz Pass-Thru RCAs



Replies:

Posted By: Sebastian018
Date Posted: July 11, 2004 at 12:18 PM
Hey, That amp does not have a subsonic Filter, and yes its good to use it if you are using a ported box to protect your subs, the subsonic Filter eliminates lower frequencies that we can't hear from being reproduced, saves your amp from wasting a ton of power which makes the amp more efficient and it helps protect your subs (especially in ported enclosures).

Here is a Good definition from esmith69


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