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HIFI Electronical 3 Way Crossover PCBA Class A Power Linkwitz-Riley Filter 6 Channels Output Crossover-point 310HZ/3.1K Hz (Model No: WHF-PACR02)


This PCBA of HIFI electronical crossover is refer to the ESP design company by US, which is set to six-channel stereo output structure to output left and right channel stereo signal, this is, output treble of left and right channel, midrange and bass of left and right channel, you can directly connect it with 6 channel amplifier circuits then drive your HIFI speakers. Pre-electronic crossover ensures original and natural sound through separated frequency of pre-amplifier small-signal, then drive power amplifier directly to push speakers, allowing you to enjoy the atmosphere of the studio\'s site.









Crossover PCBA is constituted by renowned Linkwitz-Riley filter. Linkwitz-Riley filter, mainly for the active filter circuit, for example, it is used in many sophisticated multi-way electronic crossover systems. The characteristics of this filter is up to 4 stages attenuation slope, in other words, every one octave frequency sound energy will be attenuated 24dB, i.e. attenuation slope of -24dB / Oct (Oct ie Octave, an octave interval of the mean). Meanwhile, in the entire audio band (20Hz-20kHz), Linkwitz-Riley filter has a very flat phase response, which is far better than Butterworth filter after filter signal, no phase distortion, which is widely admired by audiophiles.






Although many friends put a lot of money and efforts to preamplifier, unfortunately they may experiences a little frustration in final output. It is hardly difficult to solve this problem to use excellent pre-divider circuit of preamplifier plus multiple power amplifiers, our series of electronic crossover board and amplifier board can perfectly realize your dreams!



1. Excellent electronial crossover circuit with HIFI design, perfectly to reproduce original and natural sound.

2. Crossover setup easily, crossover frequency is no peaks and volley bottom.

3. Adjustable 4 channels output independently.

4. Power supply for op amp adopt the best class A power, which is more delicate and far better than LM317 337 78XX series power.

5. The circuit comes with four times gain preamplifier (if you want to change the pre-amplification, please tell the seller).

Please note: Depending on the crossover point, we calculate the resistor and capacitor parameters, and their specification will be difference with the pictures.









If you need to buy a similar finished PCBA , please click the link below.


HIFI Electronical 3 Way Crossover PCBA Class A Power Linkwitz-Riley Filter 6 Channels Output Crossover-point 310HZ/3.1K Hz 




Product Specifications

  1. Filter Type: Linkwitz-Riley filters
  2. Crossover point: 310Hz/3100Hz (i.e. 20-310HZ for bass output, 310Hz-3100Hz for midrang, 3100-20000HZ for treble output). Crossover can be customized to other frequencies (free custom). Different speaker crossover point is not the same as the best; you can give us the crossover point, we help you calculate the parameters of the circuit again on sale.
  3. Attenuation slope: -24dB / Oct. The board structure: four-channel stereo output, treble, midrange, bass of left and right channel
  4. Op-amp chip: imported JRC\'s NE5532 (of course, you can replace them according to your needs, such as: OPA2604AU OP275G TL072, etc.)
  5. Dimensions: 430mm * 55mm * 226mm
  6. Working voltage: AC 110V or 220V
  7. Power assumption: 30W
  8. Accessories

Power cord x 1

Remote control x 1



about shipping

1. Worldwide Shipping (Except some countries).

2. Orders processed timely within 3~5 business days after the payment verification. 

3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.

4. The images shown are not the actual item and are for your reference only.

5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season

6. We supply 4 kinds of shipping services as below

A. Expedited Shipping: DHL, UPS or Fedex. For faster shipping and smooth transaction, we will change the shipping company among them.  Estimated Delivery Time: 3~7days

B. Standard Shipping: EMS, eParket (US available) or DHL Global Mail (Germany available only) Estimated Delivery Time: 3~7days

C. Economy Shipping: China Air Post Mail / Parcel, Hongkong Air Post Mail / Parcel, Sweden Post, etc.Estimated Delivery Time: 15~60days

D. Special Routes: Russian Special Route, Estimated Delivery Time: 30~ 40days;

                                   Australian Special Route, Estimated Delivery Time: 10~ 15days;

Import duties, taxes and other customs related charges all are not included into shipping cost . Buyers bear all responsibility for all extra charges incurred (if any).

return & refund

We will check the item carefully and make sure the quality before shipment. If some unexpected problems happened, please contact us firstly.If it is quality problem, buyer may submit argue within 7days after receiving the item, buyer must provide photos , video and other evidences to seller for identify. Man-made damaged, buyers take full responsibility.

1) .The buyer return us the goods and responsible for return shipping costs; after we receive the goods ,we will send a new product to buyer and pay for the resend shipping cost.

2) .If the goods (total price including shipping is less than 10USD) has quality problems, we will resend a new product in buyer next order; if buyer don’t plan to make a new order in the near term, buyer can pay the resend shipping cost and ask to resend a new product. 

3). Due to the taxes problem, buyer refuse to receive the goods, buyer need to be Responsible for freight out and home.

about guarantee

1. One year Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.

2. Defective items MUST BE reported and returned within the warranty period (with the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY. You agree to all of the above-listed policies upon ordering on aliexpress.

about feedback

We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. 

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