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Manuals & Resources

Harrison Labs FMOD Inline Crossover Pair 20 Hz High Pass RCA

Brand:|Part # 266-246
FMODs are packaged in pairs and can be combined with other FMODs to obtain bandpass ranges or with other types of crossovers.
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Product Details

Harrison Labs FMOD Inline Crossover Pair 20 Hz High Pass RCA
What is an FMOD? The FMOD is an active crossover simulator. It is better than a much more expensive electronic crossover that requires power to operate. FMODs are packaged in pairs and can be combined with other FMODs to obtain bandpass ranges or with other types of crossovers to change the slope and crossover frequency point. FMODs feature a 12 dB per octave crossover slope and are compatible with all RCA type input amps...simply place the FMOD in-line with the patch cable running between the source (head unit) and the amplifier. 24 kt gold over brass construction, 10 volts maximum RMS input. One-year manfacturer warranty. Made in the U.S.A.


Product Specifications
  • Crossover TypeHigh Pass
  • ConfigurationInline Line Level
Harrison Labs FMOD Inline Crossover Pair 20 Hz High Pass RCA
  • BrandHarrison Labs
  • Part Number266-246
  • UPC844632053115
  • Product CategoryIn-Line Crossovers
  • Unit of MeasureEA
  • Weight0.09 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

View similar products to the Harrison Labs FMOD Inline Crossover Pair 20 Hz High Pass RCA
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Harrison Labs FMOD Inline Crossover Pair 20 Hz High Pass RCA

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Harrison Labs FMOD Inline Crossover Pair 20 Hz High Pass RCA

Can I use this on a home theater receiver? I'm building a sub and the amp I'm using doesn't have a subsonic filter. Could I just plug it into the sub out on the reciever then use a rca cable from there to the amp?

Asked by: thebatman
These will work for that, but the FMOD will have to be plugged into the sub amp instead of the receiver.
Answered by: MattP
Date published: 2015-10-01

If I add this to a "subwoofer out" on my receiver that has an internal cross overover of Hz. Would this filter then roll off any frequency below 20Hz if I put it before the subwoofer LFE input? I want to limit frequency below 20-25Hz into sub.

Asked by: Guyaskingquestions
Internal cross over of 80Hz.  (mistype in question)
Answered by: Guyaskingquestions
Date published: 2015-02-09

I am wanting to use a powered sub that came with a old home surround sound system. My tv does not have rca sub out, it only has R and L outputs. I only want the really low sounds. Will a inline crossover work? If so what do I need. thanks

Asked by: j17Henry
Please contact our tech support for more help with this question, tech@parts-express.com or 800-338-0531 x1.
Answered by: MattP
Date published: 2014-12-31

I want to set a specific bandpass for a 10" sub, i am thinking of purchasing the FMOD 30Hz highpass & the FMOD 200Hz lowpass. how do i hook them up??? does the highpass go 1st or second inline??

Asked by: djchino
The low pass will go before the high pass.
Answered by: MattP
Date published: 2014-09-23

How much attenuation at 20hz? And...

I'm wondering if this is -6dB@20hz? -3dB@20hz? Begining to rolloff at 20hz?Also, can these simply be placed in series to increase the slope? Is a pair in series a 24dB/oc slope, or something else?Thank You,Eric
Asked by: mdocod
A high pass filter at 12db per octave almost always has a minus 3db down point at the crossover point. This is so the low pass rated also at the same crossover point assuming a 12db per octave---will sum the two filters providing a smooth transition from woof to mid/tweet. In your case--plan on -3db at 20Hz-- -15db at 10hz. The whole point is to reduce "subsonic" noise from distorting the sound without any noticeable sub-woof loss. I don't know what the slope would be if loaded in series or parallel. Stay within the +10db limit at this filter's input. Good project!
Answered by: Joe from San Francisco
Date published: 2013-09-12
  • 2016-02-09T07:01CST
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