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View Full Version : Can someone clear up some active setup questions for me?



vinnymack
03-09-2008, 06:14 PM
I've been reading numerous searched threads and can't seem to understand some things with active setups.

Setup:

Hu: Pioneer 7800mp
Amp: Kicker KX650.4 + MB Quart PAB-1200.1D
Speakers: PG RSD 6.5 components
Subs: 2 12'' IDQ v2



I want to run my setup ACTIVE, but from what I have read with the 7800MP I cannot. I want to keep my 7800mp since it is present from my chick.

Question#1: Can I run an active setup by buying an electronic 3way processor such as this one ?Memphis 16-X03 3 way Electronic Processor (http://cgi.ebay.com/MEMPHIS-AUDIO-16-XO3-3-WAY-ELECTRONIC-CROSSOVER-REMOTE_W0QQitemZ350032674977QQihZ022QQcategoryZ798 40QQssPageNameZWDVWQQrdZ1QQcmdZViewItem)

If this is not what I need, Can someone give me some insghts on what else may be required?

Worlddre
03-09-2008, 06:17 PM
you can use any exteral crossover or processor that lets you bandpass you midrange...for this purpose digital would be preferable as it will be easier to accurately set your crossover points

vinnymack
03-09-2008, 06:19 PM
you can use any exteral crossover or processor that lets you bandpass you midrange...for this purpose digital would be preferable as it will be easier to accurately set your crossover points

When you say digital im thinking you mean upgrade an HU such as a 9887 or 880prs?

Worlddre
03-09-2008, 06:23 PM
when i say digital im referring to a digital crossover or processor such as an audiocontrol dqx or pha-h701 combo

vinnymack
03-09-2008, 06:29 PM
when i say digital im referring to a digital crossover or processor such as an audiocontrol dqx or pha-h701 combo

Worlddre I appreciate the help! but those units can be a little pricey.

Would the Memphis electronic crossover but ideal for a budget processor?

tsenfw
03-09-2008, 06:36 PM
I'm kind of wondering the same questions that vinny is. Sometimes I see 3 way electronic crossovers and they only have 2 outputs with LPF's and then 1 with a HPF. Most of the time you can't even tell what crossover settings are available.

To run active you would need one output with a LPF and HPF (mids) and another output with just a HPF (tweeters), correct? Well, what's models out there are capable of that? Having a hard time finding them.

tcguy85
03-09-2008, 09:04 PM
if you want to keep your current HU, you'll need an external crossover. my last HU was the 7800 and i liked it a lot, very nice unit. the rsd's can sound great run active.

helotaxi
03-10-2008, 08:56 AM
That memphis unit will work. The Coustic XM-6 is a good unit that will get the job done also. Some complain about the lowest possible hp freq for the tweet being too high for some driver combos, but it shouldn't be an issue in your case. I got one off eBay for $50 shipped NIB.

vinnymack
03-11-2008, 01:57 AM
Thanks for the help everyone! I went ahead and bought the Memphis 16-X03 3 way Electronic Processor.

vinnymack
03-11-2008, 03:09 PM
Can anyone with some PG RSD recommend what frequencies to run my comps at?



Im going to be running them on my Kicker KX650.4 which is 125x4


specs of the memphis 16 xo3 I just bought.

http://i261.photobucket.com/albums/ii44/braves6117/T%20620%20and%20X03%20Crossover/XO3Specifications003.jpg

http://i261.photobucket.com/albums/ii44/braves6117/T%20620%20and%20X03%20Crossover/XO3Specifications004.jpg

jmanpc
03-11-2008, 03:11 PM
The problem with an external xover is that time alignment won't be as effective, since you cannot adjust for the mid and tweet separately.

helotaxi
03-11-2008, 06:38 PM
Time alignment will almost not be worth doing. There were good sounding systems before TA though.

tcguy85
03-11-2008, 08:26 PM
Can anyone with some PG RSD recommend what frequencies to run my comps at?

Im going to be running them on my Kicker KX650.4 which is 125x4



i currently have my mids from 80hz/12db up to 2.5k/24db. the tweeters are at 4k/24db. in my car thats what sounds best so far.

goodstuff
03-11-2008, 08:39 PM
Time alignment will almost not be worth doing. There were good sounding systems before TA though.

Can you explain? Your saying if he uses an external active crossover then having/using time alignment will be not as effective? I am confused. You mean if he doesn't have enough outputs or something?

goodstuff
03-12-2008, 09:55 AM
Bump.