Hola juanma, gracias por la info.
Luego con mas tiempo vere si encuentro algo que lleve esos altavoces, pero no me suena.
Yo no se calcular filtros, quizas alguien de por aqui si tenga conocimientos para hacerlo, aunque deberias enviarle los altavoces. Por cierto, siempre puedes ponerle un filtro activo, son casi "plug and play"
Mira esto, es un ejemplo de un filtro calculado con calculadora y calculado con lspcad para las proac 2.5 clon, las diferencias entre los valores de las bobinas y condensadores son abismales..
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Take the 2.5 clone as an example: This is basically an 18/18 dB filter at 3 kHz. Try calculate component values for a 18/18 dB filter at 3 kHz for two 8 ohm drivers and compare to the actual crossover (the basic V1, page 3, crossover)
Try this site:
http://ccs.exl.info/calc_cr.html.
Low-pass section:
The 1.75 mH coil is calculated to be 0.64 mH
The 0.82 mH coil is calculated to be 0.21 mH
The 7.4 uF capacitor is calculated to be 8.8 uF (not that bad!)
The calculation sheet cannot take into account the impact of bypassing the 1.75 mH coil with the 47 ohm resistor. No to mention baffle-step compensation.
High pass section:
3.3 uF is calculated to be 4.4 uF
4.7 uF is calculated to be 13.3 uF
0.25 mH is calculated to be 0.32 mH.
The calculation sheet is not taking into account the needed tweeter attenuation - or polarity for that matter.
So, the actual 2.5 clone filter does not look very much like what we have calculated. If we made a 2.5 clone crossover based on theoretical component values we would get a speaker that would yell off our heads from having a midrange some 3-6 dB higher than intended and probably some serious problems in the crossover region.
My best advice is to choose some well documented commercial kits or well documented diy-constructions from the internet if you want to enter the fascinating world of DIY loudspeaker construction. Take great care if you change the cabinet construction like seen in the Acapella case. This is likely to cause serious deviations from the intended voicing of the midrange.
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http://home1.stofanet.dk/troels.gravese ... cannot.htm
por lo que tendré que ir haciendo modificaciones, poner una L-Pad y no sé si algo del filtro, pero la verdad es que no sé por donde empezar.
, aunque exteriormente son exactos, no sé si habrán cambiado algo más.
