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Adire Audio

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=43992
Printed Date: May 21, 2024 at 4:26 AM


Topic: Adire Audio

Posted By: wayland1985
Subject: Adire Audio
Date Posted: November 28, 2004 at 7:52 PM

I know there is an Adire guy always scoping out these forums, so i ask this.

The Brahma is rated at 1600 watts, but you recommend significantly less power, depending on enclosure size.  For enclosures, you recommend using Sub Zero, which makes  1.25 CuFT for the 12 inch.  I looked at your power guide, and you don't mention how much power for this enclosure.  How much should I use?

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~WAYLAND



Replies:

Posted By: Steven Kephart
Date Posted: November 28, 2004 at 9:00 PM

Our power recomendations are on how much the sub can take, but doesn't necessarily mean you have to provide that exact amount.  You would be surprised at how loud the sub will get on even half the recomended power.  For that enclosure, I wouldn't recomend much over about 1000-1200 watts. 

BTW, our rating is thermal only and complies with the home audio standard.  We sell in both car and home markets, so it is easier on everyone for us to just rate based on those standards.  This helps the customer know that we aren't fudging our ratings.

Also, you will be most impressed with those Sub Zero enclosures.  I personally don't like pre-fab enclosures much, but those are definitely the exception. 

Steven Kephart

Adire Audio



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Posted By: uthinkuknoaudio
Date Posted: November 28, 2004 at 9:05 PM
I'm running 1600 W total into my two brahmas (800 W x 2) from my cadence ZRS-9 and that is more than plenty. Great sq and man does it crank! (I have a little less than a 5 ft cu ported enclosure tuned ~ 32 Hz)

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"I don't play games. I play Nakamichi and that for real yo" - Probably some japanese kid said this in the early 80's trying to sell stereo out of his trunk lol.




Posted By: wayland1985
Date Posted: November 28, 2004 at 9:09 PM
Steven, guy, I've been looking everywhere for ya..

So those are rated by home standards???  Would that change what I need drastically?  Like when you say 1000-1200 watts,  should i go out and look for a 1000-1200 watt car audio amp, or am I going to have to go through some sort of calculation here??

Also,  for 1000-1200, is that at 1, 2 or 4 ohms?   I haven't been to the site in a while, and am too lazy to go back and look through all that info for the ratings.  (they are dual voice coils, but at what ohm rating?)

Where can I purchase Brahma's online? 

Should I wait a while to buy new brahmas?  (it seems since i last visited, that you're coming out with new products (i.e.  the kodas are being knocked off),  are the brahmas being replaced anytime soon?)



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~WAYLAND




Posted By: wayland1985
Date Posted: November 28, 2004 at 9:15 PM
I have ported now, running 1800 watts rms to two 12 inch subs.  It's in a 5 ft cu box (2.5 for each) as the manufacturer suggests, and they suck!!  They are pushing lots of air, but aren't thumping very well.  I heard from Rich (a friend and competitor to the FIshman)  www.richscartunes.com , that ported isn't too good for SQ these days, and I should go with bandpass or sealed. 

I think I'm going sealed on this one...  but I'm intrigued that you like your brahma's ported...

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~WAYLAND




Posted By: uthinkuknoaudio
Date Posted: November 28, 2004 at 9:17 PM
I love my brahmas ported. They crank like crazy. I have them wired together down to 2 ohms, and my amp feeds them a steady 800 a piece, and the THD is so low (<0.034 %) that the SQ is fantastic, whether the brahma is at minimal or full excoursion.

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"I don't play games. I play Nakamichi and that for real yo" - Probably some japanese kid said this in the early 80's trying to sell stereo out of his trunk lol.




Posted By: wayland1985
Date Posted: November 28, 2004 at 9:23 PM

I think i'll go sealed though....just to give it a shot.  Besides, sealed enclosures are smaller too. 

Now all I need to figure is amplifier.  I just want one woofer, for money reasons.  I just checked out the site, and saw they are dual voice coil, 2 ohms each.  I don't want to run down to 1 ohm, because 1 ohm stable amps aren't as easy to find, and they get warmer faster.  Should I go with a dual channel amp and run two channels???    Or how would you set up this thing???



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~WAYLAND




Posted By: Steven Kephart
Date Posted: November 28, 2004 at 9:46 PM

wayland1985 wrote:

Steven, guy, I've been looking everywhere for ya..

Sorry.  I went out of town to visit the parents for the holliday.  I just got back in.

wayland1985 wrote:

So those are rated by home standards???  Would that change what I need drastically?  Like when you say 1000-1200 watts,  should i go out and look for a 1000-1200 watt car audio amp, or am I going to have to go through some sort of calculation here??

I guess I should have been more clear.  Home audio has certain standards the equipment must comply to.  This makes sure that when you see a power rating for two different amplifiers, they are rated the same way (same distortion level, and for a given amount of time).  Car audio isn't regulated like this, and that is why you see some cheap brands with some pretty crazy ratings on their equipment.  Our subs are rated per IEC 268-5 which means that they handled that much power for a given amount of time at a certain frequency.  However, it isn't an actual power handling spec as that changes with different enclosures.  In a small enclosure the Brahma can handle 2000 watts without a problem.  But in a larger enclosure you can break it with 700 watts.  This is true with all speakers.

wayland1985 wrote:

Also,  for 1000-1200, is that at 1, 2 or 4 ohms?   I haven't been to the site in a while, and am too lazy to go back and look through all that info for the ratings.  (they are dual voice coils, but at what ohm rating?)

 That is 100-1200 watts period.  The sub doesn't care what impedance it is wired to.  It just cares about how much power it is seeing.  It is the amplifier that will care about the impedance as it will usually put out different power levels at different impedances.  This is because of ohms law.  If you drop the resistance, voltage will increase and therefore power will increase (up to the voltage rails that is).  The Brahma's have dual 2 ohm voice coils. 

wayland1985 wrote:

Where can I purchase Brahma's online? 

Right now we are going through some changes.  This means that unless our dealers bought up a good stock of Brahma's, they will be out.  We have several online dealers that you could contact.  Try https://www.sound-foundations.us/, https://www.acoustic-visions.com/, www.visionaryaudio.com, and www.creativesound.ca.  They are our online dealers and may have them in stock.

wayland1985 wrote:

Should I wait a while to buy new brahmas?  (it seems since i last visited, that you're coming out with new products (i.e.  the kodas are being knocked off),  are the brahmas being replaced anytime soon?)


We are continuing to sell the Koda line, as well as the Brahma's.  We are just increasing our line by 500% next year.  Unfortunately that's all I can say at this time.

Steven Kephart

Adire Audio



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Posted By: kfr01
Date Posted: November 28, 2004 at 9:48 PM
I'd go sealed for SQ. Transient response will generally be better than ported. If you're going for SQ, look for an amp that pushes the power you want @4ohms.



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New Project: 2003 Pathfinder




Posted By: Steven Kephart
Date Posted: November 28, 2004 at 9:56 PM

wayland1985 wrote:

I have ported now, running 1800 watts rms to two 12 inch subs.  It's in a 5 ft cu box (2.5 for each) as the manufacturer suggests, and they suck!!  They are pushing lots of air, but aren't thumping very well.  I heard from Rich (a friend and competitor to the FIshman)  www.richscartunes.com , that ported isn't too good for SQ these days, and I should go with bandpass or sealed. 

I think I'm going sealed on this one...  but I'm intrigued that you like your brahma's ported...

This depends on the tuning and size of the enclosure.  You can have fantastic SQ with a ported enclosure, and horrible SQ with a wrong size sealed enclosure.  The Brahma's have a huge advantage though as they use our XBL^2 motor.  This motor greatly reduces distortion over other standard motor topologies.  This means it will sound much better than those other subs.  You really have to hear it. 

In fact, we have an audio file on our site of two speakers playing the same tones.  One uses our XBL^2 motor while the other uses an underhung motor (better than the overhung motor in terms of linearity, but still not as good as ours).  You can audibly hear the difference in distortion.  Here's the underhung file: https://www.adireaudio.com/Files/Dan/UH-IMD-Test.wav  And here's the XBL^2 file: https://www.adireaudio.com/Files/Dan/XBL-IMD-Test.wav

Steven Kephart

Adire Audio



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Posted By: wayland1985
Date Posted: November 28, 2004 at 9:56 PM
Woa guy....you cant get away with just saying "that's all i can say"

Can we expect better things than a brahma?  Or am I okay with buying a brahma now???

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~WAYLAND




Posted By: meef
Date Posted: November 28, 2004 at 10:23 PM
not to totally jack this thread, but what would you reccomend for two 12" Shivas going into a 98 eagle talon, as far as a box goes?




Posted By: wayland1985
Date Posted: November 28, 2004 at 10:32 PM
https://www.adireaudio.com/Files/cut%20sheets/Shiva%20Sales%20Brochure.pdf 

That shows what adire recommends for that woofer (alighnment).  If any of those types make sense to you, take the size (in liters) and convert it to cu ft.  (  https://www.onlineconversion.com/volume.htm )  If not, im sure steven can help, if he ever comes back and tells us what to expect from adire...

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~WAYLAND




Posted By: Steven Kephart
Date Posted: November 28, 2004 at 11:06 PM

Sorry, I love my job and won't give it up just to release information early.  posted_image

As for the Shiva enclosure size, I usually recomend about 1.2 cubic feet sealed for each Shiva.  The linked page was enclosure sizes for a home audio application.  That's why the enclosure sizes listed are pretty large. 

Steven Kephart

Adire Audio



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Posted By: wayland1985
Date Posted: November 28, 2004 at 11:10 PM
Yeah, those conversions did seem a bit much..... 2.1 ft cu......  i guess i better be more careful when handing those suckers out...

Anyways,  steve, come on guy...

At least tell me whether or not I should hold on buying a brahma right now...   I'd be pretty upset if in 2 months there's a whole new adire line with a better version of the brahma,  and an adire amplifier or something.....

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~WAYLAND




Posted By: kfr01
Date Posted: November 29, 2004 at 12:00 PM
Even if they do release something new you'll still have an excellent product that can be resold for quite a bit.  Last I checked used non-abused Brahmas were going close to retail on ebay.

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New Project: 2003 Pathfinder





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