The 7 Best passive Crossover filters (2023 reviews)

We consider a passive crossover filter to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

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Our Top Picks:

Best overall: Buy: Audiopipe passive Crossover Filter READ REVIEW

Best For Subwoofer: Buy: ACEIRMC passive Crossover Filter READ REVIEW

Best with Subwoofer output: Buy: Harrison Labs passive Crossover Filter READ REVIEW

Best For music: Buy: Qianson passive Crossover Filter READ REVIEW

Best For Tweeter: Buy: ACEIRMC splitter board READ REVIEW

Best For home or mobile installations: Buy: Qianson Low Pass Filter READ REVIEW

Best value For money: Buy: Zerone passive Crossover Filter READ REVIEW

Best overall: Audiopipe passive Crossover Filter

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Audiopipe passive crossover filter is the epitome of what a great filter should be. This is made for 4 Ohm Aplication. It is a passive crossover so it goes after the amp and splits the amplified signal 3 ways. The negatives of the crossover outputs are connected together, which matches how the car connects the speaker driver negatives together. It’s set up for a tweeter, midrange, and woofer. It is most noticeable at low volume and most dangerous at high volume. The crossovers are perfect for this retrofit. It is good for low wattage systems.

• Blends the three low/mid/hi speakers nicely
• Great sound for bass music country music pop music even classical music
• Takes a bit more power that way
• Keep your mids & bass out of the line up

Best For Subwoofer: ACEIRMC passive Crossover Filter

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For a low asking price, aceirmc passive crossover filter has managed to overwhelm their customers by packing as many features as they could. These ACEIRMC crossovers are affordable and easier to deal with. It can be used in 2.1 high small satellite box and automotive loudspeakers. It comes with 4 jumpers onboard to optimize your audio effect first. 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.

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

Best with Subwoofer output: Harrison Labs passive Crossover Filter

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Harrison Labs is known for creating pragmatic and minimalist filter for people on the go, and its line of harrison labs passive crossover filter definitely falls in line with that reputation. It is an active crossover simulator. This is a 12dB slope per octave filter which is a rather standard slope. The deepest vocals are about 85 hz so either of these crossovers would eliminate them from your sub. This could also allow you to, say, stack a 50 to a 70 and have a 12db fall off at 50hz, then another 12db at 70hz for 24db total, for a smoother fall off.

The sub is now super tight without any buzzing from the higher frequencies. These are directional and the pin needs to point down stream toward the subwoofer amplifier. If your crossover ever goes out and you still need to use your sub this is a great yet not ideal back up. It is great for an emergency crossover.

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

Best For music: Qianson passive Crossover Filter

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The qianson passive crossover filter's high-end materials makes sure that it ages well with use. It can be used in 2.1 high small satellite box and automotive loudspeakers. It comes with 4 jumpers onboard to optimize your audio effect. The double set is for your tweeter and woofer and the single side is the input. It is used to control audio effect of bass range. The crossover point is adjustable. It is good for mids/tweet but way too much voice comes through for woofers. It is adjustable based on where you put the jumpers. It comes with two crossovers to add to that it is a great way to re-purpose old speakers.

• Large capacity, reasonable design, beautiful appearance, quality achieve full self control
• Great way to re-purpose old speakers
• Delivers what they promise

Best For Tweeter: ACEIRMC splitter board

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If you want nothing but the best desirable filter, then aceirmc splitter board is the one you should definitely consider, as it manages to bring a lot to the table. Inductance adopts anaerobic copper winding, and pure copper wire. This puts only the inductor in the series with the bass driver. It can be used in 2.1 the high small satellite box and automotive loudspeakers. It comes with 4 jumpers onboard to optimize your audio effect.

The crossover soprano + available bass binary frequency sound box, can also be used in 2.1 the high small satellite box and automotive loudspeakers. They work as hoped, and make the speakers sound much better.

• Large capacity, reasonable design, beautiful appearance, quality achieve full self control
• Mid range smooth, tweeter response perfect
• One of the new comers and featured product

Best For home or mobile installations: Qianson Low Pass Filter

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We would, of course, be remiss if we didn't mention qianson low pass filter for regular usage. This crossover does the job of blocking high frequencies from getting to your single subwoofer. 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. It is good for 4-8ohm applications, for home or mobile installations.

This is only a single channel crossover network, only 1 input and 1out put, it will probably work if you already have the channel bridged to work with both subs. It appears that there is also a high-pass selectable filter, that blocks frequencies below 0 Hz or below 8Hz. This is a low-pass filter, that only allows bass frequencies to pass to a subwoofer speaker.

• One of the new comers and featured product
• New and hot release

Best value For money: Zerone passive Crossover Filter

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Not everyone likes to purchase filter for their daily purpose, but the zerone passive crossover filter would be an anomoly. This appears to have good quality components on a well designed circuit board. It is made of 3/4" mdf and their size is 18"x 9.5"x 9. It is a good replacement for vintage speakers.

• Easy diy project well worth the money
• High temperature resistant wire, wire wound ceramic resistor and imported metal film
• Ensuring large load capacity, long-term durability and very good sound quality
• Low loss and high quality, no longer have the problem of electrolytic capacitors