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 FI-FD350€74.98 IT/pieceIn stock |
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FD350 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).
1FFD350
1FFD350
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Beyma FI-FD250€64.23 IT/pieceIn stock |
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FD250 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).
1FFD350
1FFD250
1FFD350
1FFD250 |
Beyma FI-FD212€69.76 IT/pieceIn stock |
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FD212 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.
1FFD350
1FFD250 1FFD212
1FFD350
1FFD250 1FFD212 |
Beyma FI-F130€23.28 IT/pieceIn stock |
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F130 1 way high-pass. Cut off frequency 3.0 kHz, power handling 300 WRMS, attenuation slope 18 dB/octave, attenuation 0 or -3 dB.
1FFD350
1FFD250 1FFD212 1FF130
1FFD350
1FFD250 1FFD212 1FF130 |
Beyma FI-F100€21.00 IT/pieceIn stock |
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F100 1 way high-pass. Cut off frequency 6.3 kHz, power handling 300 WRMS, attenuation slope 18 dB/octave, attenuation 0 or -3 dB.
1FFD350
1FFD250 1FFD212 1FF130 1FF100
1FFD350
1FFD250 1FFD212 1FF130 1FF100 |
Beyma FI-2V HIFI€21.00 IT/pieceIn stock |
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2V Hifi 2 way. Cut off frequency 3.0 kHz, power handling 300 WRMS, attenuation slope 6/12 dB/octave.
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF |
Beyma FI-3V HIFI€60.50 IT/pieceIn stock |
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3V Hifi 3 way. Cut off frequency 800 Hz and 5.0 kHz, power handling 300 WRMS, attenuation slope 12/12/6 dB/octave.
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF |
B&C Speakers FI-X0-1€47.71 IT/pieceIn stock |
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XO-1
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 |
B&C Speakers FI-X0-2€54.62 IT/pieceIn stock |
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XO-2
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT |
B&C Speakers FI-X0-3€56.01 IT/pieceIn stock |
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XO-3
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 |
B&C Speakers FI-X0-5€60.85 IT/pieceIn stock |
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XO-5
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX |
B&C Speakers FI-X0-6€54.62 IT/pieceIn stock |
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XO-6
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX |
Visaton FI-HW 2/70-4€19.59 IT/pieceIn stock |
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HW 2/70 NG - 4 OHM 4 ohm 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
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX 5401
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX 5401 |
Visaton FI-HW 2/70-8€19.60 IT/pieceIn stock |
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HW 2/70 NG - 8 OHM 8 ohm 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
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX 5401 5402
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX 5401 5402 |
Visaton FI-HW 3/80-8€27.67 IT/pieceIn stock |
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HW 3/80 NG - 8 OHM 8 ohm Rated power 100 W Maximum power 160 W Nominal impedance Z 8 Ohm Skirt selectivity 16 dB / 6 dB / Okt. Turn-over frequency 1600 / 6000 Hz Dimensions 100 x 150 mm
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX 5401 5402 5406
1FFD350
1FFD250 1FFD212 1FF130 1FF100 2FF2VHF 2FF3VHF FB08CX21 FB12CXT FB12CX32 FB10NCX FB12NCX 5401 5402 5406 |
