Filtering is very important in a system, a complex filtering is not necessarily synonymous with quality. It is possible to combine active filter and passive filter in one system.
There are two types of passive filters:
- High Pass: the frequencies are removed below. For example a high pass at 2000 Hz passes frequencies above 2000 Hz,
- lowpass: frequencies above is removed from. For example a low pass at 2000 Hz passes frequencies below 2000 Hz
The 2-way crossover is comprised of a qualified filter module for "high pass" (high-pass filter) and a qualified filter module of "going down" (low pass filter). The cutoff frequencies of the two filters modules are generally identical.
3-way passive filters (and more) are composed of multiple filter modules "high pass" and "low-pass", the medium channel (center) composed of a high-pass and low-pass is called " bandpass "(band-pass filter). The filter module "band-pass" is nothing more than the combination of a filter "High Pass" filter and a "low pass".Moreover, the operational amplifiers generate noise. Historically, the first discrete filters ROE (+ RC circuit operational amplifier) appeared in the mid sixties. It should nevertheless expect the seventies, with the first commercial integrated circuit (HIC and DIP) to be revealed the economic interest of this type of filter.
.Kartesian
€99.60 IT/piece |
Crossover Cox165
Passive crossover Kartesian for COX165_VPA, PCB board, silver capacitor, external dimensions 143 x 83 mm
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B&C Speakers
€128.95 IT/piece |
FB10CX64
2-way crossover pour B&C Speakers 10FCX64 and 10CXN64, 2100 Hz, 18dB/octave
FB10CX64
FB10CX64
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Beyma
€24.97 IT/piece |
2V Hifi
2-way hi-fi passive crossover Beyma, 3000 Hz
2 way. Cut off frequency 3.0 kHz, power handling 300 WRMS, attenuation slope 6/12 dB/octave.
2FF2VHF
2FF2VHF
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Radian
€101.15 IT/piece |
6CRF5130-XO
2-way crossover for Radian for 6CRF5130 and 6CRS5130-R
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Eighteen Sound
€87.55 IT/piece |
2-way passive crossover for 18 Sound 8CX401F, 1600 Hz
XOVER 8CX401F - XVR08XCR00
XOVER 8CX401F - XVR08XCR00
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Ciare
€72.09 IT/pair |
CF230
Pair of 2-way crossover, 2500 Hz with 0/-1.5/-3 dB attenuations, 4 ohm, 85 x 130 mm
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B&C Speakers
€71.79 IT/piece |
FB10NCX
2-way crossover pour B&C Speakers 10NCX, 1500 Hz, 12dB/octave
FB10NCX
FB10NCX
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Ciare
€32.40 IT/pair |
HF200
Pair of 2-way crossover, 5000 Hz 12/6 dB/octave, 8 ohm, 70 x 80 mm
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