The 6 Best Crossover Low Pas filters (2023 reviews)

Harrison labs crossover low pas filter is the epitome of what a great filter should be. It's a physical 50hz LPF with a rolloff of 12db/octave with no audible distortion. These are used primarily for blocking out full range signals from reaching your subwoofer when using preamp outputs on your system. They work well, one at subwoofer preamp input and another at the power amp subwoofer input, and subwoofer preamp compensate the DB loss from the 50 Hz lo-pass filter. It eliminates the talking chair effect but still provides a great kick.

These are intended for low pass on two separate channels L and R. In the case of mono only. It does have a decent drop in volume when using this adapter. It is good for home theater transducers like dayton or buttkickers.

Why We Like This:

Really great for low signals by pass
Easy to connect and works great
Delivers what they promise

Best For Tweeter: ACEIRMC Crossover Low Pas Filter

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The aceirmc crossover low pas filter should be able to handle its purpose and duties with ease. These ACEIRMC crossovers are affordable and easier to deal with. It can be used in 2.1 high small satellite box and automotive loudspeakers. The Treble goes from the frequency divider directly to treble/mid BOSE CUBES. It is built with a single resistor and capacitor. This will ensure the bass gets all the power from the amp first.

The CD jumpers have five potential pins but only use four of them. The Speaker is more efficient and louder. It comes with 4 jumpers onboard to optimize your audio effect.

Why We Like This:

Two-way, real walnut veneer, 40 watts capable
Large capacity, reasonable design, beautiful appearance, quality achieve full self control
A simple rc crossover network built with a single resistor and capacitor
Voice totally visible (prior muffled), tweeters functioning as they should

Best with Subwoofer output: Harrison Labs Crossover Low Pas Filter

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The harrison labs crossover low pas filter's superior materials makes sure that it ages well with use. It is great for an emergency crossover. If your crossover ever goes out and you still need to use your subs this is a great yet not ideal back up. This is an active crossover simulator. They work just fine with passive subs placing them between the power amp and the sub. These are directional and the pin needs to point down the stream toward the subwoofer amplifier.

This is a 12dB slope per octave filter which is a rather standard slope. The sub is now super tight without any buzzing from the higher frequencies. It will not eliminate low frequency buzz, especially when lf buzz is often 60hz.

Why We Like This:

Helps clean up the bass if you don't have a filter built in
Works to rid 95% of annoying high frequency sounds to subwoofer
Perfect and simple to integrate subwoofer

Best For music: ACEIRMC splitter board

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Next on the list, we've got yet another filter that manages to win our hearts. It's the aceirmc splitter board and it's widely considered as filter that has the most suitable features. Inductance adopts anaerobic copper winding, and pure copper wire. It is used to control audio effect of bass range. This puts only the inductor in the series with the bass driver. It comes with 4 jumpers onboard to optimize your audio effect. It can be used in 2.1 the high small satellite box and automotive loudspeakers. They work as hoped, and make the speakers sound much better.

Why We Like This:

Large capacity, reasonable design, beautiful appearance, quality achieve full self control
Mid range smooth, tweeter response perfect
New and hot release

Best For home or mobile installations: Qianson Crossover Low Pas Filter

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Not everyone likes to purchase filter for their daily usage, but the qianson crossover low pas filter would be an anomoly. This crossover does the job of blocking high frequencies from getting to your single subwoofer. It is used to pass low freq to a sub woofer and block higher frequencies. It simply cleans the power coming "from" your power source/Amp going to your speaker to provide a clean bass signal/response. It works well when all you have is a normal headphone style jack on the back of your computer. The switch either blocks upper bass from getting to your driver or allows it.

This is a low pass filter, that only allows bass frequencies to pass to a subwoofer speaker. The crossover frequency will be higher when connected to a 4-ohm speaker than it is when it's connected to an 8-ohm speaker.

Why We Like This:

Delivers what they promise
Good investment for long term

Best premium: Dayton Audio Crossover Low Pas Filter

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The filter is a must have add-on for your daily usage.

Why We Like This:

High quality red pc board with eva backing to prevent shorts and vibration
High quality air core inductors in series with the driver
High quality components are securely fastened to pcb
Dual 0.205" terminals at each connection point for easy parallel wiring