Which amp would be better for my application?

[bigwheel15 10+ year member]

Okay, its time for me to get an amp for my tempest coming. I am going with profile because it is cheap reliable power. But my question is which would be better for running the tempest in a vented box?

http://www.profilecaraudio.com/amplifiers.htm

Im stuck between the ca400 and the ca800. Please give me your opinion on which I should choose. Thanks for any help.

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[X6369X 10+ year member]

Got any specs on the sub and box you're using?

 

[bigwheel15 10+ year member]

Well, for box I plan around 4 cubic feet tuned to mid to low 30s. Dont have any exact specs for a box yet.

So, any ideas which I should choose?

 

[monte_carlo97 10+ year member]

need sub specs. That would really help

 

[bigwheel15 10+ year member]

Sure thing:

Re 3.50 ohms Le 2.9 mH

Qms 6.7 Mms 195 grams

Qes 0.40 Cms 0.34 mm/N

Qts 0.38 Rms 3.5 N*s/m

Fs 18.8 Hz Sd 779 cm^2

Vas 317 liters BL 14.2

Xmax 16.4 mm one way EBP 47

SPL 89.1 dB @ 1W/1m No 0.51%

Pmax 400W per voice coil; 750W total to the driver

NOTE: Power rating is thermal only! It is NOT a power requirement; typically you get full output with significantly less power than the rating. PRICE $150.00

There ya go. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[X6369X 10+ year member]

I'm not familiar with the Adire Tempest, but found out that it's a 15" sub:

http://www.adireaudio.com/TextPages/TempestPageFrameText.htm

The brochure lists 3.0-4.5 cu ft @ 25-30 hz:

http://www.adireaudio.com/Files/cut%20sheets/Tempest%20Mobile%20Audio%20Sales%20Brochure.pdf

 

[bigwheel15 10+ year member]

So you think I should go with more power? If I have any problems I could always back the gains down some. Sound like a good idea?