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Old 14th April 2010, 11:09 PM   #1
form109 is offline form109  United States
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Default How Does a Woofer Move so Far and Still Produce Midrange Clearly?

Say in a 2 Way Design....

When the Woofer Cone is Moving Alot how does it still manage to Clearly Produce the Midrange?
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Old 14th April 2010, 11:23 PM   #2
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It does until you start getting sensitive to doppler and intermodulation distortion. It places an upper limit to power output that tends to force a lot of people to be interested in 3-ways. You can use a larger diameter woofer, of course, but then you have to listen to that.
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Old 15th April 2010, 12:39 PM   #3
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One of the reasons why 2.5 ways and MTMs are handy as they reduce the excursion.
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Old 15th April 2010, 02:09 PM   #4
ontoaba is offline ontoaba  Indonesia
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Quote:
Originally Posted by form109 View Post
Say in a 2 Way Design....

When the Woofer Cone is Moving Alot how does it still manage to Clearly Produce the Midrange?
Because it still driven with voltage containing midrange. Since the woofer not saturated yet, Mid and Low-Mid frequency still able to clearly produced.
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Old 16th April 2010, 07:18 PM   #5
form109 is offline form109  United States
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Originally Posted by onto aban View Post
Because it still driven with voltage containing midrange. Since the woofer not saturated yet, Mid and Low-Mid frequency still able to clearly produced.
When the Cone is Producing Midrange it doesnt seem like it Moves at all.

Also.....if you have a Dual Voice Coil Woofer.....will it have a Negative Effect if you send Bass to one Coil and Midrange to the other Coil?
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Old 16th April 2010, 07:28 PM   #6
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In the simplest of terms, it only moves a large distance for the lowest frequencies and while it is doing that it is also moving back and forth a small amount for the mids and highs during those large excursions. I hope I'm not making this too simple but the easy way to see it for yourself is to put your right hand in the shape of a gun, sideways in front of you as if you are shooting someone to your left and begin to wiggle your index finger back and forth rapidly. While you are doing that, move your whole hand fore and aft (toward your body, them away). This is what happens in a speaker. The large fore and aft being the bass and the finger wiggle is the mids.

The question about the woofer, I don't know. Why would you consider doing that? It's kinda like using summer tires for snow isn't it? A woofer is a woofer. if it is capable and you want it to carry mids, you want both coils doing that, no?
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Old 16th April 2010, 10:12 PM   #7
form109 is offline form109  United States
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The question about the woofer, I don't know. Why would you consider doing that? It's kinda like using summer tires for snow isn'toofer. if it is capable and you want it to carry mids, you want both coils doing that, no?[/QUOTE]


Just an Idea Cal....its a diffrent Version of what im doing now

Two Similar Woofers in the Same Cabinent....one connected to a full Range amp and the other Connected to a Higher Power Sub Amp.
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Old 16th April 2010, 10:19 PM   #8
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Originally Posted by form109 View Post
Two Similar Woofers in the Same Cabinent....one connected to a full Range amp and the other Connected to a Higher Power Sub Amp.
Are they in separate chambers within the cabinet? They should be.

The different bands to different coils idea is a non-starter I'm afraid and could lead to damage to the amp.
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Old 16th April 2010, 10:35 PM   #9
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Two Similar Woofers in the Same Cabinent....one connected to a full Range amp and the other Connected to a Higher Power Sub Amp.
Yes, I saw that. I see nothing wrong with that at all. Maybe because I've done something similar more than once. Yes I did have the cabinet divided so it's really more like a .1 way
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Old 16th April 2010, 10:37 PM   #10
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That trick is commonly pulled with just an added low pass network on the second (or third, etc.) woofer. It's sort of a Band Aid though, you still have a woofer playing midrange, or maybe you just can it and use one running mids, or a midrange altogether. Ceases to be a 2-way long ago.

Last edited by Andrew Eckhardt; 16th April 2010 at 10:40 PM.
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