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.
Monacor
€34.22 IT/piece |
3-way passive crossover, 8 ohm, 650 / 6000 Hz, Monacor DN-4
Filtre 3 voies 650 / 6000 Hz, 100w, selfs bobinées sur air, condensateurs électrolytiques bipolaires |
Ciare
€99.63 IT/pair |
HF301
Pair of 3-way crossover, 1000 / 5000 Hz 12 dB/octave, 8 ohm, 130 x 130 mm
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Ciare
€139.32 IT/pair |
PF205
Pair of 2-way crossover, 2400 Hz 12/18 dB/octave, 8 ohm, 105 x 160 mm
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Visaton
€51.26 IT/piece |
HW 3/120 NG - 8 OHM 8 ohm
3-way crossover Visaton HW 3/120, 8 ohm, 800 / 5000 Hz
Rated power 100 W Maximum power 160 W Nominal impedance Z 8 Ohm Skirt selectivity 12 dB / Okt. Turn-over frequency 800 / 5000 Hz Dimensions 100 x 150 mm
5412
5412
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BMS
€62.04 IT/piece |
16 ohm
Passive crossover BMS C16/16, 16 ohm impedance calibration, 2 ways, for BMS 4590, 4592, 4593, 4594, 4595, 4507 and 4508
Crossover for BMS 4590 (16Ohm) BMS 4592 (16Ohm).
BMS-C16/16
BMS-C16/16
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B&C Speakers
€59.24 IT/piece |
FBCXN36
2-way crossover for B&C Speakers 4CXN36, 5CXN36 and 6CXN36, 1000 Hz, 12/6 dB/octave
FBCXN36
FBCXN36
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Monacor
€61.87 IT/piece |
2-way passive crossover, 8 ohm, 2500 Hz, Monacor DN-1218PAX
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Ciare
€25.92 IT/pair |
CF102
Pair of 1-way high pass crossover, 8000 Hz, 4 ohm, 23 x 61 mm, for tweeter Ciare CT267
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