Get your questions answered from other customers
who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email firstname.lastname@example.org
for a prompt reply.
Harrison Labs FMOD Inline Crossover Pair 20 Hz High Pass RCA
Is this fmod made to filter out all signals below 20hz. That's why its a high pass crossover. So if I took a fmod low pass 80hz crossover and combined it with this 20hz high pass I would have a bandpass filter where only signals between 80hz and 20hz
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.
Internal cross over of 80Hz. (mistype in question)
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
Please contact our tech support for more help with this question, email@example.com or 800-338-0531 x1.
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??
The low pass will go before the high pass.
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
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!
Date published: 2013-09-12