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Your cart is empty.WHAT IS AN FMODtm ? 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 AN FMOD CAN BE COMBINED WITH OTHER TYPES OF CROSSOVERS TO CHANGE THE SLOPE (DB/OCTAVE) AND CROSSOVER FREQUENCY POINT. WHY ARE FMODS BETTER? FMODS HAVE VIRTUALLY NO NOISE OR DISTORTION FMODS DO NOT CAUSE TURN ON THUMPS FMODS ARE VERY RELIABLE
Tim N.
2025-08-17 15:18:15
I had to much bass coming from vocals in talk radio. I thought, could the shop not have put a crossover on the sub?Couldn’t find a crossover in my head unit and got these and it tightened up the bass in music and helped tremendously for talk radio.
Poultrygeist
2025-08-04 09:17:28
I bi-amp my system and run the full range open baffle speakers straight off a SET amp with nothing in the signal path to mar the sound. Can't do the same with bass woofers as they require a low pass filter and that's where the F-mods come in handy and provide a simple solution. Previous to my purchase of the F-mods I used an electronic crossover which worked but was expensive and unnecessarily complex. I use a class D amp to drive my bass woofers and the F-mods are installed up stream and on the inputs of that amp meaning they change the frequency before the signal is amplified. That means you don't burn off power like you would with a conventional passive crossover which changes the frequency after its amplified.
ihsan
2025-07-31 13:01:07
I'm using one of these on a subwoofer in my bathroom which is connected to an old amp. Neither of the two devices have a low-pass crossover setting, so the sub tends to get lets of signal above 80Hz.Installing just one of these took almost all of the higher signals away, so I have to say they work well.I don't usually do this, but I had to drop a star for the price. Why on earth are these so expensive?!They work ... and they're compact and unpowered ... but my goodness, they might as well be made of gold, not just coated in it.
art by emmo
2025-07-29 13:01:16
I bought this to integrate my home theater sub-woofer into my two channel audio system, I wanted to add just a bit more bass extension. 70 hz is a great crossover point for sub-woofers and this product did it perfectly, Note, the crossover does attenuate the signal so size your amplifier accordingly, For this application I highly recommend this product as a better alternative to an active crossover.
james robinson jr.
2025-07-27 13:11:42
This amazing product fixed my problem and saved me money. I installed an aftermarket headunit in my F150 2008 keeping my factory subwoofer and amp. For some reason, I had vocals and humming come out of the subwoofer which was making my other interior speakers sound like crap. I slapped this crossover on the RCA cable beind my head unit going directly to my sub and amp and it completely fixed the problem. I highly recommend!
Mando R.
2025-07-15 09:02:27
Im glad i came across these low pass filters. I have a f150 and i installed a high low convertor from kicker, the kind that turns on the amp too since im using the factory head unit. Well even with my low pass filter set to the lowest setting on my kicker amp, i was still getting some low vocals from the sub. So i installed these just before the amp and now i have nice clean bass. I got the 70hz low pass filters.
Walker
2025-07-03 13:29:16
The media could not be loaded.
M. Win.
2025-06-11 14:28:20
I picked these up to pair a subwoofer to my Audio Engine 2 speakers in my office. They have a range down to 65hz so I got the 70hz low pass. The sub is now super tight without any buzzing from the higher frequencies. Easy fix for the standard RCA outputs the AE2's have.
Tim N.
2025-05-24 16:29:38
I had to much bass coming from vocals in talk radio. I thought, could the shop not have put a crossover on the sub?Couldn’t find a crossover in my head unit and got these and it tightened up the bass in music and helped tremendously for talk radio.
Poultrygeist
2025-05-16 20:29:51
I bi-amp my system and run the full range open baffle speakers straight off a SET amp with nothing in the signal path to mar the sound. Can't do the same with bass woofers as they require a low pass filter and that's where the F-mods come in handy and provide a simple solution. Previous to my purchase of the F-mods I used an electronic crossover which worked but was expensive and unnecessarily complex. I use a class D amp to drive my bass woofers and the F-mods are installed up stream and on the inputs of that amp meaning they change the frequency before the signal is amplified. That means you don't burn off power like you would with a conventional passive crossover which changes the frequency after its amplified.
ihsan
2025-04-30 18:39:24
I'm using one of these on a subwoofer in my bathroom which is connected to an old amp. Neither of the two devices have a low-pass crossover setting, so the sub tends to get lets of signal above 80Hz.Installing just one of these took almost all of the higher signals away, so I have to say they work well.I don't usually do this, but I had to drop a star for the price. Why on earth are these so expensive?!They work ... and they're compact and unpowered ... but my goodness, they might as well be made of gold, not just coated in it.
art by emmo
2025-04-09 11:38:05
I bought this to integrate my home theater sub-woofer into my two channel audio system, I wanted to add just a bit more bass extension. 70 hz is a great crossover point for sub-woofers and this product did it perfectly, Note, the crossover does attenuate the signal so size your amplifier accordingly, For this application I highly recommend this product as a better alternative to an active crossover.
james robinson jr.
2025-03-15 11:54:36
This amazing product fixed my problem and saved me money. I installed an aftermarket headunit in my F150 2008 keeping my factory subwoofer and amp. For some reason, I had vocals and humming come out of the subwoofer which was making my other interior speakers sound like crap. I slapped this crossover on the RCA cable beind my head unit going directly to my sub and amp and it completely fixed the problem. I highly recommend!
Mando R.
2025-02-07 12:31:56
Im glad i came across these low pass filters. I have a f150 and i installed a high low convertor from kicker, the kind that turns on the amp too since im using the factory head unit. Well even with my low pass filter set to the lowest setting on my kicker amp, i was still getting some low vocals from the sub. So i installed these just before the amp and now i have nice clean bass. I got the 70hz low pass filters.
Walker
2025-01-16 10:15:22
The media could not be loaded.
M. Win.
2025-01-10 12:11:30
I picked these up to pair a subwoofer to my Audio Engine 2 speakers in my office. They have a range down to 65hz so I got the 70hz low pass. The sub is now super tight without any buzzing from the higher frequencies. Easy fix for the standard RCA outputs the AE2's have.
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