Don't have software, will you run some #s for me?

[nelsondog]

I don't have the software and if I did I wouldn't know what to do with it!
I'm wondering if I could use these for subs in a regular cab pick-up in 1.0 c.f. each or less and get good bass from them...

Power handling: 90 watts RMS/130 watts max
Voice coil diameter: 2"
Impedance: 8 ohms
Frequency response: 26-6,000 Hz
SPL: 90 dB 1W/1m
Vas: 4.77 cu. ft.
Xmax: 3.0mm
Qms: 4.17 * Qes: .36
Qts: .34
Fs: 26 Hz

I appreciate any and all help greatly!
Brian

 

[Ron E]

Just download WinISD or some other freeware.

3mm of Xmax is not a lot of excursion. These aren't really subs. They will make noise in your pickup, can't tell you how much without knowing diameter and other parameters...

Without running numbers in a calculator I can give you this estimate: in 1 cubic foot you will have a halfspace F3 ~60z or so, and Qts in the range of 0.8 or so. Your pickup's small cab will bring up the low end considerably, though - so the actual F3 will be lower..

 

[nelsondog]

I run a Mac...

 

[nelsondog]

This is all I know...
http://www.partsexpress.com/pe/showdetl.cfm?&Partnumber=290-088

Can you work with it?
Brian

 

[Ron E]

a dump from my uber spreadsheet....

Anything you see about ports on the front page does not apply - this is a sealed box design of 1 cubic foot
F3 62.5 Hz and damped Qts of 0.74

First graph is SPL at 2.83 volts and Max SPL (90W)
second graph is power handling about 10-12 watts at low frequencies - due to low excursion
third graph is input impedance showing typical closed box impedance peak - no surprises here
fourth graph is excursion modeled at 75Watts/8 ohms input - note that it is beyond spec below about 100Hz - see the power handling graph.
5th graph is phase and group delay - nothing of note here.

 

[nelsondog]

...not a suitable driver then?

 

[Ron E]

...depends on what you want. I can imagine $40-80 more well spent somewhere else. Look at a DVC12 or DVC15 at the same website, or a "Quattro", as they call them.

 

[nelsondog]

I'd like to thank you for taking the time to help me out. Thank you
Do you have any suggestions with paper cone and rubber surround?
I have 50 to 75 watts available per woofer if that matters.
Brian

 

[sreten]

Hi,

It is a decent speaker 10" bass unit with good efficiency 90dB / 8 ohm.

It will work fine in a well stuffed 1cuft internal sealed box but it is not really a subwoofer.

Presumably a 4 ohm driver would be better for an in-car amplifier ?

Why paper cone ? for a subwoofer ?

/sreten.

 

[nelsondog]

Thanks sreten
I find that a paper coned drivers sound just sounds better to me...
Do have any diver suggestions?
Brian

 

[tpsorin]

I recommend Unibox. It is a excel file, so I think it can be run on Mac.

Also "passive crossover designer" from the same site is excellent.

 

[nelsondog]

Thanks tpsorin! But, is it easy to use?

 

[tpsorin]

Thanks tpsorin! But, is it easy to use?

sure. if you know to use excel, it is no problem to use unibox. of course, at least basic understanding of speaker theory is necessary