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IWISTAO Electronical 2 Way Crossover Preamp HIFI Linkwitz-Riley filter 4-Ch Output 2.2KHz
20 In stock
HIFI Preamplifier
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Important: 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).
IWISTAO Electronical 2 Way Crossover Preamplifier HIFI Linkwitz-Riley filter 4-Channel Output Crossover-point 2.2K Hz
Model No: WHF-PACR01FP
The crossover point of the PCBA is 2200Hz as default only
IWISTAO Electronical 2 Way Crossover Preamp HIFI Linkwitz-Riley filter 4-Ch Output 2.2KHz Customized_2613 from IWISTAO HIFI MINIMART2 on Vimeo.
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!
Features
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.
Product Specifications
1. Filter Type: Linkwitz-Riley filters
2. Crossover point: 2200Hz (i.e. 20-2200HZ for bass output, 2200-20000HZ for treble output).
3. Attenuation slope: -24dB / Oct. The board structure: four-channel stereo output, treble, bass of left and right channel
5. Op-amp chip: imported JRC's NE5532 (of course, you can replace them according to your needs, such as: OPA2604AU OP275G TL072, etc.)
6. Dimensions: 245mm * 46mm * 160mm,
7. Weight: 1.6Kg
8. Working voltage: AC220V
9. Accessosies
Power cord x 1
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Only for you information about the HIFI Electronical 2 Way Crossover PCBA board
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1.Important: 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).
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You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
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Seller Guarantees
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 our store.
