posted
I have some old Rockford amps with X-Card crossover.Those are not in use because i use Alpine PRA H400`s to do the crossovering. But i wonder if i should make some 20-30hz cards and use them as Subsonic filters. This because i belive booth the subs and the amps would benefit from this,since they would get rid of the stress with trying to produce unheard tunes.
What do you think? What frekvenzy should i use to get the best balance betwin sound and stress release. Opinions would be great
-------------------- Alpine CDA-7939R HU,2 pcs Alpine PRA-H400 signal prossessors. Rockford Fosgate 200DSM,2 pcs 400X4 and a 500M. Macrom/Morel 8,5" midbass,5" midrange and 1,12" tweeters up front. 6,5" midbass and 4" coax rear. Rockford Fosgate RFR 2215 in sealed box for sub.
posted
Yes you should use the -xcards for sub-sonic filtering. It is also possible to manipulate the Q of the x-card to increase the output at the crossover frequency.
quote:Originally posted by Mabeita: Yes you should use the -xcards for sub-sonic filtering. It is also possible to manipulate the Q of the x-card to increase the output at the crossover frequency.
The first part i have instructions for but when we talking about using X cards for eqvalization i dont know where to get the nessecary knowledge. Can you tell me where to find it or maybe even tell me how too ? Pleeaasee
-------------------- Alpine CDA-7939R HU,2 pcs Alpine PRA-H400 signal prossessors. Rockford Fosgate 200DSM,2 pcs 400X4 and a 500M. Macrom/Morel 8,5" midbass,5" midrange and 1,12" tweeters up front. 6,5" midbass and 4" coax rear. Rockford Fosgate RFR 2215 in sealed box for sub.
posted
The aligment of a crossover is basically a numerical representative of what it does at the crossover frequency.
Certain aligments have a "boost" right around the crossover frequency, but right below the boost they roll off quickly.
Other aligments have a natural roll off with no boost.
Information about this might be available in rockfords archives on their site. I know I certainly don't remember the resistor values for this of the top o' me 'ed.
ShadowStar
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Posts: 2578 | From: Somewhere In the Northeast | Registered: May 1999
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