2-Way or 3-Way for doors?? - diyAudio
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Old 25th June 2006, 09:21 AM   #1
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Question 2-Way or 3-Way for doors??

Hey
im putting a sound system into my new car and im gona put a component system on the front doors and subs in the boot, i want to know whethere i should MAKE a 2-way component system or a 3-way component system on the doors, even though im also gona have subs in the boot, is it a waste of money for 3 way or is it worth it??

P.S. im changing threads because the other one had a bad title/ topic related to this

thx
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Old 25th June 2006, 04:18 PM   #2
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Due to the physical constraints a 2 way is much easier. Also your crossover is much simpler. IMHO maybe a 8" in the door with a 4-5.25" mid would be good.

What sizes/drivers are you looking at? Price range, Active or passive?
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Old 26th June 2006, 02:55 AM   #3
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i am looking at the new peerless range, i would prefer a tweeter, a 4inch and a 6inch on the doors wich will be passive and then active a sub in the boot, these drivers fit perfectly but others would fit easily aswell, thx
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Old 27th June 2006, 04:54 PM   #4
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I agree with ocool_15 - a 3 way is a lot harder to fit into a car, a 2 way is hard enough. Might be a good idea to get a decent 2 way set, and concentrate on fitting them in a way to release their potential.

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Old 28th June 2006, 02:30 AM   #5
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Yeh but as i mentioned before my car has perfect places to fit a 3 way, wouldnt it be better to put a 3-way in my car??
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Old 28th June 2006, 05:37 AM   #6
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Go for it.
With only a 4 and 6 it doesnt seem to be much advantage using the same series. Model them. If your going to use 2 speakers that similar it just seems like a ton more work for little advantage.
You should post the T/s parameters or at least links and intended crosover points. I'm not sure of your experience but would you mind posting an image at least showing the intended locations? Perfect locations in a car are well beyond the physical constraints of an interior so that is why I question your locations.
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Old 28th June 2006, 01:35 PM   #7
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yeh ill take pics of the locations of the vehicle, as soon as i can, but i want to know what size speakers i should use in a 4-way including a tweeter and a 12 inch subwoofer??... i was thinkin of one of them being an 8 inch but that will like do the same job as the 12 almost so there's no point of putting that, but will the 6 inch go down to like 70 hz?? and wat type of midrange seal back or normal 4 inch or 2.5 inch... after i know these things i can tell u wat drivers i want to use and show parameters and ask for recomended x-over points.
thx
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Old 30th June 2006, 01:25 PM   #8
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maybe you can do 2 way system like this
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Old 1st July 2006, 09:24 AM   #9
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FYI (just to let you know)

3 way in door where all sound is coming from same spot thinking 6,4,tweet?

i say NO WAY MAN!!!
1st you would have to build a passive network deviding the frequincies correctley NOT because it is fun to have each speaker have less work to do, that is NOT THE REASON, the reason is you want a divided network to make all speakers play in seprate range so no 2 or more speakers play same thing below 4 ohms,

For example if you had 2 4ohm subs in parrell the amp would see lets say 1 ohm (it is really LIKE 1.36 but nevermind that)
BUT if one sub was crossed over from 0 to 50 hz and other sub was 50hz and up the impeadiance would stay at 4 ohms, i hope you catching on. so 3 way on highs are good if you plan on running the 6 inch speaker down below 50Hz, i mean you need a ton of power and the 6inch must be in a sealed enclousure to be able to do it. if you do do 3 way i would build a custom X over using Polyproplene caps and air core inductiors. go 12db on the tweet at around 4500hz (but check the impeadance curve 1st dont want to rolla speaker off in a high impeadance band that is a no no)
for shure 6db bandpass on the 4 inch and 6 db low pass on the 6 inch, run the 6 inch 6db low pass to around 300hz run the 4 inch 6db highpass at 600hz ( 1 oactave seperation on 6db junction to have a -3db at 1/2 oactave of 300 and 1/2 suboactave of 600 to make bolth speakers nominal impeadiance stay at 4ohms) run the 4 inch lowpass 6db to at about 1.3kHz it will slowly roll off and will give a small rise in impediance around 3kHz witch is a good thing, If you have 30 band eq you notice that 3kHz sounds like poo poo..

OK that is a 3 way setup done right...it is better if tweet and mid are in dash close to eachother and midbass in kick or door to apply a 3 way really really efficatavly.
But the easiest way to achieve the same or most time BETTER sound is just keep it simple do a 2 way...serious it sounds better most of the time. make shure to build a sealed enclousure for midbass and just dont be afraid to put massive amounts of power on your highs...
goodluck
Andy
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Old 1st July 2006, 01:42 PM   #10
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hey
i tottaly understand what ure sayiing, and thats wat i plan 2 do, the only reason im doing 3-way instead of 2-way is because i got the space in the dash, and 3 way will sound better ofcourse, except i plan to make my 6.5" go down to 80(not 50) and if i wanted to y cant i put the 6,4,twt on the door together?????????????????????????????????????????? ?????????????????????????????????????????????????? ????
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