Crossovers
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.
Beyma FD2XA€57.84 IT/pieceIn stock |
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2 way. Cut off frequency 1.8 kHz, power handling 600 WRMS, attenuation slope 12 dB/octave, HF attenuation 0 or -1.5 dB.
1FFD2XA
1FFD2XA
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Beyma FD350€74.60 IT/pieceIn stock |
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3 way. Cut off frequency 2.0 and 7.0 kHz, power handling 600 WRMS, attenuation slope 12 dB/octave, equalization -3dB @ 3.5 kHz, HF attenuation 0 or -6 dB (MF and HF).
1FFD2XA
1FFD350
1FFD2XA
1FFD350 |
Beyma F300€82.51 IT/pieceIn stock |
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3 way. Cut off frequency 800 Hz and 5.0 kHz, power handling 300 WRMS, attenuation slope 12 dB/octave.
1FFD2XA
1FFD350 1FF300
1FFD2XA
1FFD350 1FF300 |
Beyma FD250€64.24 IT/pieceIn stock |
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2 way. Cut off frequency 2.0 kHz, power handling 600 WRMS, attenuation slope 12 dB/octave, equalization -3dB @ 3.5 kHz, HF attenuation 0 -3 -6 or -7.5 dB. Dimensions 135 x 175 mm (4 holes 4 mm each on 165 mm and 125 mm space).
1FFD2XA
1FFD350 1FF300 1FFD250
1FFD2XA
1FFD350 1FF300 1FFD250 |
Beyma FD212€69.76 IT/pieceIn stock |
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2 way. Cut off frequency 1.2 kHz, power handling 600 WRMS, attenuation slope 12 dB/octave, equalization -3dB @ 3.5 kHz, HF attenuation 0 -3 -6 or -7.5 dB.
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 |
Beyma F130€23.28 IT/pieceIn stock |
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1 way high-pass. Cut off frequency 3.0 kHz, power handling 300 WRMS, attenuation slope 18 dB/octave, attenuation 0 or -3 dB.
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 |
Beyma F100€21.00 IT/pieceIn stock |
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1 way high-pass. Cut off frequency 6.3 kHz, power handling 300 WRMS, attenuation slope 18 dB/octave, attenuation 0 or -3 dB.
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 |
Beyma 2V Hifi€21.00 IT/pieceIn stock |
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2 way. Cut off frequency 3.0 kHz, power handling 300 WRMS, attenuation slope 6/12 dB/octave.
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF |
Beyma 3V Hifi€60.19 IT/pieceIn stock |
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3 way. Cut off frequency 800 Hz and 5.0 kHz, power handling 300 WRMS, attenuation slope 12/12/6 dB/octave.
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF |
B&C Speakers XO-1€47.47 IT/pieceIn stock |
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1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 |
B&C Speakers XO-2€54.35 IT/pieceIn stock |
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1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT |
B&C Speakers XO-3€55.73 IT/pieceIn stock |
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1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 |
B&C Speakers XO-4€74.30 IT/pieceIn stock |
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1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB15CX40
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB15CX40 |
B&C Speakers XO-5€60.85 IT/pieceIn stock |
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1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB15CX40 FB10NCX
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB15CX40 FB10NCX |
Visaton HW 2/70 NG - 4 OHM€19.59 IT/pieceIn stock |
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Rated power 100 W Maximum power 160 W Nominal impedance Z 4 Ohm Skirt selectivity 12 dB / Okt. Turn-over frequency 3000 Hz Dimensions 100 x150 mm
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB15CX40 FB10NCX 5401
1FFD2XA
1FFD350 1FF300 1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB15CX40 FB10NCX 5401 |
