Posible to use a 6.5" woofer for a mid ? - diyAudio
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Old 16th December 2008, 03:01 AM   #1
skooter is offline skooter  United States
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Default Posible to use a 6.5" woofer for a mid ?

I have been looking at some of the mids and the woofers in my catolag. the woofers look really beefy and some handle more power. could they be used (crossed over of coarse) for a midrange?
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Old 16th December 2008, 04:46 AM   #2
ppia600 is offline ppia600  United States
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As long as they can produce frequencies in the range you need for your mids... check their specs. You may need to use a larger tweeter that can drop lower to compensate for using some woofers
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Old 16th December 2008, 03:46 PM   #3
jol50 is offline jol50  United States
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Most of the HD 6.5 do not play well at higher frequency. You need to go to something like the peerless xls or what ever the letters are For a good mid you might use something like the dayton rs for example (a good bang for the buck driver). Anyway note how it looks lighter weight and if you check the response charts should be smoother and have a higher range of recommended frequency use....but will drop off on the bottom. The hefty cone you need for a woofer just can't produce good sound up in the mid, and the other way around. Like said above you can go with a large tweeter that can go lower, or even a 2-3" driver depending on your install. Two way you have to match drivers pretty close and is near impossible to use a woofer or small tweeter...woofer being something that will blast 80-120Hz midbass. Really something like the dayton rs will do ok, you just can't get a lot of midbass output as it can't handle a lot of power in bass like a more HD woofer type driver can...so it does depend on what kind of output you need.
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Old 17th December 2008, 01:50 PM   #4
djQUAN is offline djQUAN  Philippines
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skooter, sorry if I threadjack a bit but your topic gave me an idea...

I have a pair of these. and was thinking of mounting them along with a pair of MB Quart tweets in fiberglass pods in the A pillar. 6.5" Quart midbasses in the doors. I have a DCX2496 and planning on crossing them at 250Hz HP and 4kHz LP powered by an amp9basic running on ~25V (~50wrms @ 4ohms, 25wrms @ 8ohms) other two channels will drive the tweets and an amp2 will drive the midbasses. would it work or should I stick the bigger 4" Quart mids in the A pillars? I'm just worried that I might fry the mids (3 inchers) when I turn the volume up at times.
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Old 17th December 2008, 02:03 PM   #5
HK26147 is offline HK26147  United States
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I'm just worried that I might fry the mids (3 inchers) when I turn the volume up at times.
By taking off the excursion demands of having to reproduce below 250Hz these drivers will work better as mids.
Of course, You are the best judge of how loud you need

I get the feeling you should go to larger mids.

Syd
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Old 17th December 2008, 05:30 PM   #6
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Quote:
Originally posted by HK26147


I get the feeling you should go to larger mids.

Syd

Agreed.

Aside from significantly less cone area, the HiVi's sensitivity is quite low. Double whammy. Neither is going to go very low unless the fiberglass pod is bigger than I'm imagining.

I've been wrestling with essentially the same dilemma...
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Old 17th December 2008, 07:08 PM   #7
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Perhaps you could gang together multiples of these three inchers for the mids......you could string several going up the pillar.
The low impedence capacity of most all car amps would easily drive multiples.
Without using these a "Pod" at the pillar would be ugly at any size bigger than a 3". You would then need to rethink WHERE am I going to use a bigger driver.
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Old 18th December 2008, 01:10 PM   #8
djQUAN is offline djQUAN  Philippines
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I'm not going to use a regular car amp. I'm going to use two channels of the 41Hz amp9basic kit which is a 4 channel class T module with around 50wrms/ch at 4ohms.

more mids won't be an option as I was hoping for a smaller pod but looks like I'm stuck with the 4" mid.

I was thinking of going 3 way since the imaging is a mess in my system. taking the midrange off the doors and taking them up to the windshield could eliminate the boxiness caused by the center console in the footwell. image gets stuck between my legs. I've tried everything from messing with the crossover freq's and slopes, time delays and tweeter mounting.
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