800 Hz Low Pass 4 Ohm Crossover

800 Hz Low Pass 4 Ohm Crossover

Convenient crossovers that work great in any application requiring economical and flexible filtering.
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Weight: 0.5 lbs.  
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Part # 266-448
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Product Details

800 Hz Low Pass 4 Ohm Crossover

Convenient crossovers that work great in any application requiring economical and flexible filtering. Also for use in car stereo installations with component speaker systems. Low pass, band pass, and high pass models complement woofers, midranges, and tweeters. Designed to be wired in-line between amp and speaker by using .205" disconnect terminals or soldering. The crossovers' compact size facilitates mounting virtually anywhere you desire.

Specifications: • Approximately 250 watts RMS • Type: Low pass • Driver impedance: 4 ohm • Crossover frequency: 800 Hz • Roll off: 12 dB.

Product Specifications
  • Crossover TypeLow Pass
  • ConfigurationBoard Only
800 Hz Low Pass 4 Ohm Crossover
  • BrandParts Express
  • Part Number266-448
  • UPC844632074882
  • Product CategoryAssembled Passive Crossovers
  • Unit of MeasureEA
  • Weight0.5 lbs.
  • California Prop 65

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

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in the Assembled Passive Crossovers product category.


800 Hz Low Pass 4 Ohm Crossover
800 Hz Low Pass 4 Ohm Crossover is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from DIY Speaker BuildingThese and the other filters purchased from Parts Expressreally improved with isolating the frequency and sound quality of my speakers.No more distortion!The price was very reasonable.
Date published: 2012-11-25

Product Q&A

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 tech@parts-expresss.com  for a prompt reply.
800 Hz Low Pass 4 Ohm Crossover

Replacing a set of factory rear door speakers with Dayton Audio RS100P-4 4" and want to keep out the highs with this 800 hz crossover. 40 RMS. I know it will not offer earth shattering bass but will this work? Should I go to the ND105-4 (enclosed)

Asked by: Creative Structure
Yes it will certainly work. Keep it mind, 800 Hz will filter out more than just lower bass, it will cut out a portion of the lower midrange as well. If you only want to protect these from low bass, the 100 Hz crossover may be a better option.
Answered by: MattP
Date published: 2014-08-18

Is it possible to wire this in series to a woofer?

Currently i have it wired in parallel on a 4 ohm woofer with another 4 ohm coaxial speaker in parallel producing a 2 ohm speaker which is undesirable
Asked by: TomSwanberg
Unfortunately no, these can only be wired in parallel.
Answered by: MattP
Date published: 2014-04-15

Frequency matters so,

How low can the frequency go?I want my woofers to be able to be low frequency.
Asked by: tylou
Low frequency can go sub sonic, or below the range of human hearing. The general audio range for us humans is accepted as 20hz to 20 khz. however this is a best average. Life in a noise filled world damages our hearing and can reduce our overall range or other frequencies.The crossover you have picked will allow very low sounds to pass into your woofer. The speaker and your cabinet design will shape what your system produces.
Answered by: Nitnub
Date published: 2014-04-15

Question About Crossover Frequency

Could I use this for a home theater subwoofer?If not then can you point me to one or the parts to build one.Thank you
Asked by: msm123
Technically yes although 800 Hz is generally far too high of a crossover point for a subwoofer. I would recommend the 80-100 Hz low pass instead.Keep in mind these will not take more than 250 watts, if you need something that will handle more power I would recommend simply going with a subwoofer plate amplifier.
Answered by: MattP
Date published: 2014-04-15

Would two of these, wired in parallel, make it 2 ohms?

And, what would the effect be on the frequency? would it change to 400 or even 1600 hz?Thanks!
Asked by: nathin93
No. That's not how crossover components work. You can use a crossover calculator to determine the parts you need based on the drivers, impedance and crossover point you want. The bigger question is why 2 ohms. This is not good. Designers seek to build 8 ohm speakers to be easy for an amplifier to run. The only exception, for whatever reason, is for subwoofers in car stereos. And in those cases, the amps have electronic crossovers built in. Feel free to elaborate on your design if you need more help.
Answered by: MarkAJH
Date published: 2012-08-20

Would this LPF equate to 400 Hz in an 8-Ohm subwoofer application?

PS, sorry I believe I may have inadvertantly asked this question under the 800Hz 4-Ohm High-Pass Crossver. My Apologies.
Asked by: TheGDog
No, the crossover point would shift UP by one octave if you apply this product to an 8 ohm speaker. For a 400Hz 8 ohm low pass, a 4.5mH inductor and a 35uF capacitor would be indicated. I've linked the appropriate items below for your convenience. Wire the capacitors in parallel to achieve the desired 35uF capacitance.
Answered by: RussR
Date published: 2012-03-02

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Part # 266-448
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