People that have worked with FI's..

[Wkbdkid 10+ year member]

Is it on sale now?

 

[NDMstang65 10+ year member]

Sure...here's some info.

We have a new email specifically for the new IB series subwoofers from Fi. Any questions regarding the new 18" and 15" can be directed to IB"at"FiCarAudio.com. Hopefully this will eliminate some of the back up of IB emails being caught in the flood of regular car audio emails.

The new IB 18 features a 3" coil and a triple stacked motor specific for the IB application (smaller than the older Q series modified IB drivers and a little more purpose built overall).

Specs are:

Re 1.5 Ohms (single 2 Ohm coil)

Le .87mH

Fs 22.9 hz

Qms 3.25

Qes .79

Qts .63

Vas 381 l

Mms 258 g

Sd 1210 cm^2

Spl 89.4 1W/1m

Xmax is 30mm and suspension and motor limit right about at the same time.

At about 500-600 W it hits its linear limits at 20Hz. Power needs will vary accordingly.

These subs are $209 each shipped in the lower 48 States and for orders of 4 or more they are $199.

The smaller 15" IB sub features a 2" voice coil and a purpose built triple stack motor. It is rather efficient for an IB driver and has a very low inductance.

Specs are:

Re 1.6 Ohms (single 2 Ohm coil)

Fs 24.4 Hz

Le .72 mH

Qms 4.00

Qts .77

Qes .64

Vas 269.5 l

Mms 145.4 g

Sd 810 cm^2

Spl 90.0 1W/1m

Xmax is 22mm and is suspension limited (Xmag is 24mm)

Subs are linear limited at about 250W at 20Hz.

These subs are $129 each shipped in the lower 48 States and for orders of 4 or more they are $119.

 

[Wkbdkid 10+ year member]

I know their ment for IB but "what if" you were to put them in a box to compare? what kinda box would be best an how would they sound? New to the IB an H/T scene sp bare with me

 

[NDMstang65 10+ year member]

You'll break them and they'll sound terrible...response curve would be horrid //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

If you want to run subs in a normal sealed/ported box stick with what we've got to offer in the other lines, IB woofers are not designed to go into an enclosure //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif.

Thanks!

-Nick

 

[lilmaniac2 5,000+ posts]

IB discussion here

http://www.caraudio.com/forum/showthread.php?t=276133

 

[tyler_fitz 10+ year member]

get a q, 12 or 15... or even 18 if that tickles your fancy. i have a 15 and love it. it'd sound great if it didnt rattle my truck so much...

 

[Wkbdkid 10+ year member]

You'll break them and they'll sound terrible...response curve would be horrid //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
If you want to run subs in a normal sealed/ported box stick with what we've got to offer in the other lines, IB woofers are not designed to go into an enclosure //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif.

Thanks!

-Nick

Thanks thats what i was wanting to know.