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.
Visaton
€27.29 IT/piece |
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HW 2/70 NG - 8 OHM 8 ohm
2-way crossover Visaton HW 2/70, 8 ohm, 3000 Hz
Rated power 100 W Maximum power 160 W Nominal impedance Z 8 Ohm Skirt selectivity 12 dB / Okt. Turn-over frequency 3000 Hz Dimensions 100 x 150 mm
5402
5402
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Radian
€117.74 IT/piece |
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324/12
Crossover for Radian 5312, also replacement in RPX/RCX-112P and 112P-V
For use with 5312 coaxial drivers. Crossed over at 1250Hz and Eq. Replacement crossover for: RPX/RCX-112P and 112P-V models. |
Eminence
€44.09 IT/piece |
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PXB:1k6
Crossover Eminence PXB:1K6, 1 way high pass, 1600 Hz
U-PXB1K6
U-PXB1K6
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Monacor
€61.87 IT/piece |
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2-way passive crossover, 8 ohm, 2500 Hz, Monacor DN-1218PAX
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B&C Speakers
€89.92 IT/piece |
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FB464
2-way crossover for B&C Speakers DCX464 and DCX462, 8 ohm, 3600 Hz, 18/12 dB/octave
FB4648
FB4648
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Radian
€86.95 IT/piece |
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322/08B
Crossover for Radian 508/2B and 5208B, also replacement in RPX/RCX-108P and 108P-V
For use with 508/2B and 5208B coaxial drivers. Crossed over at 1800Hz. 12dB per octave slope. Replacement crossover for: RPX/RCX-108P and 108P-V models. |
Beyma
€77.78 IT/piece |
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FD2CX
Passive crossover Beyma FD2CX, 2 ways, 2600 Hz
2 way. Cut off frequency 2600 Hz, power handling 500 WRMS, attenuation slope 24 dB/octave.
1FFD2CX
1FFD2CX
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Radian
€163.02 IT/piece |
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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 |