188 In stock
HIFI Active Crossover
IWISTAO HIFI Electronical 2 Way Crossover PCBA Class A Power Linkwitz-Riley filter 4 Channels Output Crossover-point 2.2K Hz
Model No: WHF-PACR01
This PCBA of HIFI electronical crossover is refer to the ESP design company by US, which is set to four-channel stereo output structure to output left and right channel stereo signal, this is, output treble of left and right channel, bass of left and right channel, you can directly connect it with 4 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.
The crossover point of the PCBA is 2200Hz as default only
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.
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: 173mm * 69mm * 18mm,
7. Installation pitch: 133mm * 75mm
8. Power supply range: AC Dual 14V to Dual 19V
9. Audio input / output: 2-RCA terminals * 3
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