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    jellyfish420's Avatar
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    going active, need opinion

    ok, i'm getting ready to do this. thanks for the help from minivanman
    so here's the drivers i think i'm gonna use.... let me have it, good, bad, or other opinions.

    http://www.madisound.com/catalog/pro...roducts_id=823

    http://www.madisound.com/catalog/pro...oducts_id=1734

    i am building sealed fiberglass boxes in the door for them.



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    Re: going active, need opinion




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    Re: going active, need opinion

    How are the mids going to be oriented in your door pods? Meaning, how many degrees off axis from pointing straight at you are they going to be off?

    How are the tweeters going to crossed over? Frequency and slope?



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    Re: going active, need opinion

    id choose another mid, one thats not 8 ohm.




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    Re: going active, need opinion

    the mids are going to be 30 degrees or better, i'm gonna do the driver side, then match the pass side the same, as to not have any side biasing, having one more on axis than the other. the tweeter, will be on axis, i haven't figured the tweeter xover or slope yet, i'll play w/ that when i do it. i'm guessing around 2500hz @ 12db. i wasn't to keen on it being 8 ohm. any suggestions on a 4ohm mid, in the 60-70 range?



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    Re: going active, need opinion

    Last edited by jellyfish420; 06-25-2007 at 10:28 PM.



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    Re: going active, need opinion

    Go with the Peerless Exclusives, then... they have a pretty flat response up to around 4300Hz at 30 degrees off-axis.

    Not sure about the MG18 or PL18. Maybe there is some info/reviews over at diymobileaudio?

    Here's something that might be of interest, as well:
    http://www.diymobileaudio.com/forum/...ad.php?t=13820



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    Re: going active, need opinion

    Jump on these. 4 ohm just like you like them.

    (link is in PM)

    Quote Originally Posted by azbass View Post
    id choose another mid, one thats not 8 ohm.
    Please don't start. I'm saying that as nicely as I can, I've been through this waaaayyy to many times.



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    Re: going active, need opinion

    This is off the point a little but I'd try different mounting angles and things like that. Just putting something 30 degrees off axis doesn't mean that is the best for it. You have reflections and things like that to consider. Just build you a baffle, angle them and go from there. I found that mine worked best firing about 6" in front of my rear view mirror. Some work aiming them at the headrests. Every vehicle is differnt.



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    Re: going active, need opinion

    Quote Originally Posted by xtremekustomz View Post
    This is off the point a little but I'd try different mounting angles and things like that. Just putting something 30 degrees off axis doesn't mean that is the best for it. You have reflections and things like that to consider. Just build you a baffle, angle them and go from there. I found that mine worked best firing about 6" in front of my rear view mirror. Some work aiming them at the headrests. Every vehicle is differnt.
    Agreed, but a baseline to start with never hurts.



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    Re: going active, need opinion

    Quote Originally Posted by MiniVanMan View Post
    Jump on these. 4 ohm just like you like them.

    (link is in PM)



    Please don't start. I'm saying that as nicely as I can, I've been through this waaaayyy to many times.
    if i had the money right now...i'd already own a pair

    what waaaaayyy too many times? i'd like to hear it.



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    Re: going active, need opinion

    Quote Originally Posted by jellyfish420 View Post
    if i had the money right now...i'd already own a pair

    what waaaaayyy too many times? i'd like to hear it.
    The difference in output between a 4 ohm and an 8 ohm driver is generally negligible if any at all.

    I've gone into a fair amount of depth on this issue and been in some pretty heated debates that I would prefer to avoid now. I'm pretty much in a go ahead and believe it or not state on this issue now.

    I will still stop somebody when they say that an 8 ohm driver is not suitable for a car. That's actually false, and it can actually be beneficial.



    2007 Chrysler Town & Country Type R

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    Want to understand your passive crossover a little better??

    http://www.diymobileaudio.com/forum/...0&page=1&pp=10

    Your ability to buy expensive audio equipment does NOT make you an "audiophile"

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    Re: going active, need opinion

    Quote Originally Posted by MiniVanMan View Post
    The difference in output between a 4 ohm and an 8 ohm driver is generally negligible if any at all.

    I've gone into a fair amount of depth on this issue and been in some pretty heated debates that I would prefer to avoid now. I'm pretty much in a go ahead and believe it or not state on this issue now.

    I will still stop somebody when they say that an 8 ohm driver is not suitable for a car. That's actually false, and it can actually be beneficial.
    not trying to get you going...but the output would be the "same", even though the 8ohm driver would be getting less power, than the 4ohm load?



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    Re: going active, need opinion

    Quote Originally Posted by jellyfish420 View Post
    not trying to get you going...but the output would be the "same", even though the 8ohm driver would be getting less power, than the 4ohm load?
    This might help:

    http://www.caraudio.com/forum/showpo...&postcount=115



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    Setting Amp Gains:
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    Re: going active, need opinion




    2007 Chrysler Town & Country Type R

    Being installed as we speak
    Mids: 7" Scan Speak Revelator
    Tweets: Lotus RT27F
    Subs: Dayton RS315HO (x2)

    H/U: Eclipse 8053
    Amps: Memphis ST1500, ST200.4, ST150

    Want to understand your passive crossover a little better??

    http://www.diymobileaudio.com/forum/...0&page=1&pp=10

    Your ability to buy expensive audio equipment does NOT make you an "audiophile"

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