Low efficiency NS3 limiting front stage? - Car Audio | DiyMobileAudio.com | Car Stereo Forum

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Old 02-15-2017   #1
 
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So I plotted out the frequency response of my front stage drivers on a single graph using the manufacturers specifications as a guide. I did this to get a visual representation of what is "possible" and identify, using Fs, too, the ideal xover points for each driver.

The mid bass is almost flat from 50hz to 200hz

Mid range, NS3, is nearly flat from 200hz to 3.2k

Tweeter has a nice fall off at 30 degrees from 3.2k to 20k

Sounds good right? Ideal even....

One problem. Mid bass and tweeter are up at 90db, the mid (NS3) is all the way down at 80db.

That is a 10db differende.

Problem? Or just lower the mid bass and tweeter 10db?
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Old 02-16-2017   #2
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Default Re: Low efficiency NS3 limiting front stage?

Midrange speakers that size are almost never particularly efficient. Turn up the gain on those channels, and/or turn down the levels of the other drivers. You shouldn't have any trouble getting the drivers all balanced. What are you doing your processing with?

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Old 02-16-2017   #3
 
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Alpine H800.


I have a FaitalPro 3", too. But it has a gradual rise in response from 200 to 3k, which the opposite of what I want. 3k has to go down 2-4 db, with a q of 2 and 300hz has to come up 5. Not ideal. But it has the efficiency, in the upper mid range at least, not the lower, to match the midbass and tweeter.
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Old 02-17-2017   #4
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Default Re: Low efficiency NS3 limiting front stage?

The Aurasound drivers seem to do impossible things; in the right box, an NS3 can play down to subwoofer territory.

But that comes at a price, which is ridiculously low efficiency.

And their power handling isn't much better than the competition.

Oddly enough, I've been warming up to the Aurasound Whisper over the Aurasound NS3. Although the Whisper has efficiency that's even LOWER than the NS3, the Whisper is cheap cheap cheap now. About $10 iirc.

Three Whispers will generate about as much output as an NS3, for about the same price, but with more extended highs. And the voice coil on the Whisper is actually bigger than the NS3.

I'm also kinda excited to see the new 2" driver that's coming from Parts Express for their new CBT arrays. They had them at CES, but I understand the driver isn't for sale yet.


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Old 02-17-2017   #5
 
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So Im sitting here in my car and it hits me.

It is okay if the midrange has a lower sensitivity rating. The human ear is more sensitive to those frequencies. The lower frequencies need the extra output.

Pretty sure I'm right. Let me know if I'm totally off base.
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