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.
Radian
€162.30 IT/piece |
324/1152
Crossover for Radian 5215B in 16 ohm version, with passive/bi-amp switch, also replacement in RMW-1152 and APEX-1500
For use with the 5215B-16 coaxial driver. Crossover includes passive/bi-amp switch. Replacement Crossover for: RMW-1152 and APEX-1500. Crossed over at 1500Hz. 12dB per octave slope. |
Radian
€162.30 IT/piece |
324/12XD
Crossover for Radian 5312 and 5215, with passive/bi-amp switch, also replacement in APEX 1200XD, APEX 1500XD, APEX NEO 1200 and APEX NEO 1500
For use with the 5312 & 5215 coaxial driver.Includes passive/biamp switch. Replacement Crossover for: APEX 1200XD, APEX 1500XD. APEX NEO 1200 & APEX NEO 1500 |
Radian
€162.30 IT/piece |
322/1122
Crossover for Radian 5312 in 16 ohm version, with passive/bi-amp switch, also replacement in RMW-1122 and APEX-1200
For use with the 5312-16 coaxial driver. Crossover includes passive/bi-amp switch. Replacement Crossover for: RMW-1122 and APEX-1200. |
Radian
€153.28 IT/piece |
324/15
Crossover for Radian 5215B, also replacement in RPX/RCX-115-V
For use with 5215B coaxial driver. Crossed over at 1500Hz. 12dB per octave slope. Replacement crossover for: RPX/RCX-115P-V. |
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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Ciare
€139.32 IT/pair |
PF206
Pair of 2-way crossover, 2400 Hz 12/18 dB/octave, 4 ohm low pass, 8 ohm high pass, 105 x 160 mm
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Monacor
€139.23 IT/piece |
3-way passive crossover, 8 ohm, 700 / 3500 Hz, Monacor DN-200
Filtre 3 voies 700 / 3500 Hz, 400w, composants de qualité, pour une utilisation universelle |
Eighteen Sound
€129.02 IT/piece |
12NCX910
2-way passive crossover for 18 Sound 12NCX910, 2000 Hz
XVR12NCX91A
XVR12NCX91A
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