Are all AudioNirvana drivers badged/easiest T/S measurement protocol. - diyAudio
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Old 28th May 2012, 09:50 PM   #1
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Default Are all AudioNirvana drivers badged/easiest T/S measurement protocol.

picked up some 8" neo magnet GUI-Sound/AN units?

they're un-badged as you can see in the picture. How likely is it that these are going to be the same as the AN8 neo's listed on common sense audio?

kinda don't want to deal with Dicks as i'm sure he'll sell me another sales pitch that these are terrible and not his units and i should buy his.

face value they sound pretty good and look to be very well put together.

http://www.gui-sound.com/upload/2008101114150143.pdf

they look to be a neo version of ^those^

the other question is, what is the minimum measurement i'd need to get an idea of which unit these are meant to be? i've read a lot about adding weights, using boxes with bags etc and am wondering if there's an easier way and one that doesn't involve me sticking things to the delicate looking cones.

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Old 28th May 2012, 10:55 PM   #2
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Nice drivers, congratulations for the purchase. When the you had a sound impression, please inform us your opinion.

I also dislike add mass to the cone, the moving mass in FRs had to be small, the the lightest possible.
I feel add mass to the cone is OK just for woofers.
I assume you will use a BR box, If you put a certain amount of woolen blanket on the rear wall, the bass will increase significantly.
Godd luck
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Old 28th May 2012, 11:12 PM   #3
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I'd put those bad boys into BIBs to bump up the lower frequency response.
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Old 28th May 2012, 11:20 PM   #4
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Quote:
Originally Posted by Godzilla View Post
I'd put those bad boys into BIBs to bump up the lower frequency response.
i'm trying to make a horn for them, unfortunately horns have completely and entirely outwitted me (not that i've had much success elsewhere that is!).

the BiB or metronome type T-Line is the fall back option.
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Old 29th May 2012, 12:48 AM   #5
zman01 is offline zman01  Bangladesh
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If you can live with (and somtimes move) the big cabs, BiBs are a good sounding yet simple build. You'll need to place near corners to bring out the impressive bass.

Last edited by zman01; 29th May 2012 at 12:51 AM.
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Old 29th May 2012, 05:29 AM   #6
ra7 is offline ra7  United States
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Go for bibs...

For measurement, buy http://www.amazon.com/Testing-Loudsp.../dp/1882580176

The best 40 dollars you'll spend on diy speaker building.
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Old 29th May 2012, 05:57 PM   #7
IG81 is offline IG81  Canada
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It's really not hard to acquire T/S parameters yourself:

Measuring Loudspeaker Driver Parameters

Adding weight to the cone or sticking the driver in a small box is the trickiest part and is the way to give you the Vas parameter. You can get an idea of what type of enclosure the driver will be good in with Fs/Qts only, while Vas will let you know if this box will be big or small. Still better to measure it all.

IG
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Old 29th May 2012, 07:16 PM   #8
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can anyone recommend a suitable and possible cheap voltmeter?
not sure what i'm supposed to be looking at.
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Old 29th May 2012, 07:54 PM   #9
ra7 is offline ra7  United States
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Dayton Audio DATS Dayton Audio Test System 390-806
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Old 29th May 2012, 09:20 PM   #10
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Originally Posted by ra7 View Post
i don't particularly want to spend $100 just to see if these things are matched or remotely close to being on spec. thanks for the suggestion tho.
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