Adire Audio Power Handling Chart

[BonusBobo 10+ year member]

Does the Power Handling chart on the adire audio website regarding the brahma series include the displacement of the driver itself? It says 2.85 cu. ft. for a Brahma 15 w/ 800W of power. Do I have to add another .5 cu. ft. or so to include the volume of the subwoofer? hunches/guesses are welcome w/ backing.

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[BonusBobo 10+ year member]

http://www.adireaudio.com/mobile_audio/drivers/brahma_power_handling.htm

 

[TheGrimReaperKD 10+ year member]

Confuses me too...

Someone has to know..

 

[nswartley 5,000+ posts]

im pretty sure its after displacement. if you look athe the brahma 10, for 7000watts it says .11 ft^3. that has to be after displacement, cuz you cant fit the driver in that small a space

 

[BonusBobo 10+ year member]

Originally posted by nswartley im pretty sure its after displacement. if you look athe the brahma 10, for 7000watts it says .11 ft^3. that has to be after displacement, cuz you cant fit the driver in that small a space

yeah, good point. That was my inclination. I think you're probably right. I wish jlaine would give me a heads up on this (he's an adire audio dealer) but he's harder to get to than the president.

 

[jlaine 10+ year member]

Originally posted by BonusBobo Does the Power Handling chart on the adire audio website regarding the brahma series include the displacement of the driver itself? It says 2.85 cu. ft. for a Brahma 15 w/ 800W of power. Do I have to add another .5 cu. ft. or so to include the volume of the subwoofer? hunches/guesses are welcome w/ backing.

Remember your 800w amp has transient capabilities.

During musical bursts, you should be able to drive it to it's limits. Complete sine waves? You'll tickle it but won't destroy it. Very safe box for the power you have. Follow the chart.

 

[BonusBobo 10+ year member]

Originally posted by jlaine Remember your 800w amp has transient capabilities.

 

During musical bursts, you should be able to drive it to it's limits. Complete sine waves? You'll tickle it but won't destroy it. Very safe box for the power you have. Follow the chart.

And the chart doesn't include the driver's displacement, yes?

 

[nswartley 5,000+ posts]

LOL he responded but didnt answer your question

 

[BonusBobo 10+ year member]

Originally posted by nswartley LOL he responded but didnt answer your question

I know. and with my luck he'll probably never see this god **** thread again. Jlaine really is harder to get to than the president.

 

[Wkerat 10+ year member]

From my discussions with Dan (i work at an Adire dealer) the chart looks to account for displacement. His recomendation to me for some brahma 12's in our demo set-up (i work at a marina so it is a boat) was around 900-1000 watts for a box around 1 cubes after displacement. To be safe you can e-mail adire. I don't have the address for their tech e-mail but it is on their site and they respond very quickly.

 

[BonusBobo 10+ year member]

Originally posted by Wkerat From my discussions with Dan (i work at an Adire dealer) the chart looks to account for displacement. His recomendation to me for some brahma 12's in our demo set-up (i work at a marina so it is a boat) was around 900-1000 watts for a box around 1 cubes after displacement. To be safe you can e-mail adire. I don't have the address for their tech e-mail but it is on their site and they respond very quickly.

really? because I emailed them about a month ago and have yet to receive a reply.

 

[Wkerat 10+ year member]

That is odd, perhaps your e-mail did not go through because I have alwasy recieved a response within a day or two...You can always try to e-mail Dan directly...If not I would follow jlanes advice adn go with what the chart says.

 

[bigbassman Premium Member]

you have to add in the driver's displacement to that volume given...

Loyd L.

 

[jlaine 10+ year member]

That puny amount of space that the motor and cone take up will never make an audible difference for you.. Do it as you like.

If you want to be down to the miniscule iota of accuracy, that is prior to displacement. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[BonusBobo 10+ year member]

Originally posted by jlaine That puny amount of space that the motor and cone take up will never make an audible difference for you.. Do it as you like.

 

If you want to be down to the miniscule iota of accuracy, that is prior to displacement. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

The guy who's supplying the driver for me, and who's building my box, says I should go with something significantly lower than the 2.85 that it says is perfect for the 800W I'm giving it. He says it recommends going lower than it in the manual. Is this true, you think?

 

[jlaine 10+ year member]

Originally posted by BonusBobo The guy who's supplying the driver for me, and who's building my box, says I should go with something significantly lower than the 2.85 that it says is perfect for the 800W I'm giving it. He says it recommends going lower than it in the manual. Is this true, you think?

He's wrong.

For one he's arguing with the man that designed the driver - for two, he's arguing with one of the dealers that sells and helps install these... I think we both have done the research...

Need I say more? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[nswartley 5,000+ posts]

Originally posted by jlaine Need I say more? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

no //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[BonusBobo 10+ year member]

Originally posted by jlaine He's wrong.

 

For one he's arguing with the man that designed the driver - for two, he's arguing with one of the dealers that sells and helps install these... I think we both have done the research...

 

Need I say more? //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Ok, cool, well you've helped out a lot. Thanks Jlaine. I think the guy is gonna talk to the CEO (Dan) at some point and ask him about box volume recommendations. Hopefully he will put all the controversy to rest.

 

[jlaine 10+ year member]

Originally posted by BonusBobo Ok, cool, well you've helped out a lot. Thanks Jlaine. I think the guy is gonna talk to the CEO (Dan) at some point and ask him about box volume recommendations. Hopefully he will put all the controversy to rest.

Dan is the one that designed the chart (why do you think it's there? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif )... shouldn't really need any further explanation... //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Even if you didn't have enough to drive it to linear limits, going to a smaller box will DECREASE excursion over the bandwidth, so I fail to see where this fellow is getting his ideas from...

 

[BonusBobo 10+ year member]

Originally posted by jlaine Dan is the one that designed the chart (why do you think it's there? //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif )... shouldn't really need any further explanation... //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

Even if you didn't have enough to drive it to linear limits, going to a smaller box will DECREASE excursion over the bandwidth, so I fail to see where this fellow is getting his ideas from...

I agree. Meh, he's gonna talk to dan.