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Iv never done active crossovers and dont know much about them but I just got two pairs of mb quart rcw 130 5 1/4 comp. and they dont have any crossovers. What is the benefit of doing active compared to a passive set-up? If its worth going active can someone please guide me as to what I would need to do to set it up?
My set-up: I have a 95 mustang gt running two 12" xtant x2 1244's and an old school 1001dx. The two comp. sets would be ran off an xtant 404m with one set in custom kick pannels and the other pair in the rear in custom pods, Im also going to be running a pair of kicker rmb8 mid-bass speakers in door pods.
Thanx for any advice! Jose
-------------------- 1995 Ford Mustang GT Alpine w-200 Xtant 1001dx/six Rockford P2 8's Xtant 604x/Boston Acoustics Z6 Xtant 404m/Boston Acoustics SL95 2 Optima Yellow Tops 240 amp Iraggi Alternator 1/0 ga wire Big Three Posts: 114 | From: Miami, Fl | Registered: Dec 2005
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Jose - Do you understand that passive xovers generally means xovers that come with the speakers? Active xovers are xovers that you implement at or before the amplifier. Crossovers are just filters that enable us to send the correct frequencies (and ONLY the correct frequencies) to each speaker.
One of the benefits of active xovers is that you are not waisting any power on a signal that you're just going to filter out before it reaches the speaker. Personally I'm a firm believer in going active when you can, but you need to have a good idea what frequencies you want to send to each speaker and you need to be aware of the risks. Too much control can be a bad thing if you don't know what you're doing.
I'm not trying to scare you away from active. Get educated and GO ACTIVE! Martin
-------------------- Too much of everything is just enough. Posts: 391 | From: Boston | Registered: Oct 2005
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Yea I know that passive xovers generally come with the comp. sets But Iv only heard of people doing active crossovers and I dont even know where to start when it comes to setting up my mids and highs in that manner. Iv been building custom systems for people for years and did my own in my mustang but they have all been pretty much just bass machines with passive crossovers for the mids and highs. Can you or anyone else point me in the right direction or to a web site where I can learn how to set up an active front and rear stage with my mb quart rcw 130's they are 5 1/4 with titanium tweeters. What about using bass blockers with the mids and tweets
-------------------- 1995 Ford Mustang GT Alpine w-200 Xtant 1001dx/six Rockford P2 8's Xtant 604x/Boston Acoustics Z6 Xtant 404m/Boston Acoustics SL95 2 Optima Yellow Tops 240 amp Iraggi Alternator 1/0 ga wire Big Three Posts: 114 | From: Miami, Fl | Registered: Dec 2005
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What are you going to use for the xovers? There are lots of head units on the market that'll do it for you. I think the most inexpensive Alpine that'll do it runs between $200 & $300.Usually they have a swith on the HU you can set to "3-way". That enables you to set a high-pass for the tweets, a band-pass for the mids, and a low-pass for the sub(s).
Ballpark #'s: HP - 2.5Khz BP - 100hz to 2.5Khz LP - 100hz
These are very rough #'s - it all depends on your system. Martin
-------------------- Too much of everything is just enough. Posts: 391 | From: Boston | Registered: Oct 2005
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I do intend on using a high end alpine head unit to run the system, so I will keep that in mind as of right now I have my brothers sony hu untill I purchace a new one. How would I hook up the 4 mids and 4 tweets into the 4-ch xtant amp that Im running though? Would I run the tweeters off the head unit and the mids off the amp? Thats the only way I see it working without wiring the tweets into the mids.
-------------------- 1995 Ford Mustang GT Alpine w-200 Xtant 1001dx/six Rockford P2 8's Xtant 604x/Boston Acoustics Z6 Xtant 404m/Boston Acoustics SL95 2 Optima Yellow Tops 240 amp Iraggi Alternator 1/0 ga wire Big Three Posts: 114 | From: Miami, Fl | Registered: Dec 2005
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