Fi Comes out with New line of subs

[JarvisB 10+ year member]

What exactly is a IB subwoofer?

I m kinda confused since it is a new thing to me.. I m wondering if thats mean those subs does not require any enclosure? or what?

 

[JarvisB 10+ year member]

12s... probably not. With the gapping of the 15"s smaller motor, we really couldnt do a 12". And as mentioned elsewhere, for IBs it is usually all about displacement. You dont have to follow the Vas rules and I have done many installs ignoring the IB Vas rule with excellent results. Since there is no enclosure, you mount about as large of a driver in the baffle space as you can... works well.My wife wanted all of her trunk space so we did a pair of 15s in IB several years ago. Sounded great and played deep. But no SPL records with IB either... not too mention that mechanical power handling does go down and we have designed these to take that into account. No need for 1000+W coils when at 500W RMS Xmax is reached at 20Hz. Definitely different design goals with these.

Thanks,

Scott

Can you show us a picture of what your wife's set up looked like?

 

[Fi Car Audio 10+ year member]

I doubt that I have any pics of it. Wasnt particularly note worthy, although done clean. Just flushed up a baffle on both sides of the pass through (96 Accord) so that the baskets were trapped between the front baffle and the back baffle... just saw surround/cone from the front (no gasket) and just the basket and motor from the back. No screws were showing. Carpeted to match the trunk. Left tons of space as only the baskets and motors really were in the trunk. Even when we packed the heck out of the trunk for trips or anything it still sounded fine at the levels we normally listened to it at. From time to time when I drove it Id open it up a little more and it would get things shaking and move some air.

Its a very simple thing to do... just need to make sure that the trunk is as sealed off from the cabin as best you can. Leaks between the two loose output. Now if you trunk leaks to the outside world, it isnt an issue as it still is an infinite baffle from your listening space.

Normal trunk rattles were about as bad as the previous ported 12 that loaded in the trunk (trunk was damped well and a decent amount of work was done tracking down misc under car rattles before hand).

As most of the home guys will tell you, they just do certain things "right". I like the sound of a proper IB setup (both home and car). Seems to be making a solid comeback in the SQ arena as well. We have done quite a few custom IB drivers for the car guys (especially Team Hybrid/Buwalda) But dont expect to set any local db Drag records with your new wonder setup //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[mrogowski 5,000+ posts]

Dam you Scott... //content.invisioncic.com/y282845/emoticons/verymad.gif.3f39c5c2fd57527b671fad3efdfac756.gif

//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Pl8er 5,000+ posts]

Hrm. Price is right and this could make for a really fun project. I'm thinking of a "U" shaped frame that opens up to the top of the rear deck.

anyone done something similiar to this?

 

[Zxcvtypo 10+ year member]

can anyone link me to some good examples of ib installs either in or outside of the forum? i'll be getting an accord in january, will be my first trunk car and i was seriously considering this //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Wkbdkid 10+ year member]

Any chance of a SVC4 ?

 

[Flipx99 5,000+ posts]

I'll post this on an OB board I'm on, I think it could be appreciated...
Something like this with Fi drivers would be a cool project :

This is interesting.

Is this just a board with the sub in it with no sides or back? Also, is that a full range driver in the upper right?

How complicated would it be to pull something like this off?

 

[Wkbdkid 10+ year member]

This is interesting.
Is this just a board with the sub in it with no sides or back? Also, is that a full range driver in the upper right?

How complicated would it be to pull something like this off?

I was wondering the samething. Front baffle wit no sides would look koo in a room.

 

[Flipx99 5,000+ posts]

Hopefully JimJ will drop back by and explain.

I have seen these executed very well by ID at various SQ events. I haven't seen anything in a home besides inwall stuff that's impractical for me.

 

[JimJ 5,000+ posts]

Is this just a board with the sub in it with no sides or back? Also, is that a full range driver in the upper right?

Pretty much. Yeah, the driver is a full range, in that case a Fostex Sigma...

How complicated would it be to pull something like this off?

Get a big sheet of wood, cut a hole in it, plop driver in, poof, done. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

The size of the baffle and the swept area determines how low it goes, so people who really try to maximize bass response from OB's use hinged side "wings" and big drivers. They're almost always run active.

Front baffle wit no sides would look koo in a room.

Planar speakers like Magnepans and electrostatic speakers are "all front, no sides" as well, totally different concepts though //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Sorry for taking this OT, didn't think it would get any interest here at all //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[Eugenics 5,000+ posts]

Looks like i'll be getting a car with a large rear deck.

 

[Flipx99 5,000+ posts]

It's generating more interest in the sub, so I am sure scott doesn't mind.

Thing about active in the home is the choices are brokenger or the $1,000 Rane. I don't know of much in between.

What home application is this mostly suited for? Movies/Music?

I guess Jim forgets I am leaning to SQ now (except at home, just car)

 

[Flipx99 5,000+ posts]

I don't think one could pull it off very well in a truck or SUV. I haven't seen it done.

I would need much more time than scott has to offer to see if I could pull it off in my ex cab.

 

[Eugenics 5,000+ posts]

Pretty much. Yeah, the driver is a full range, in that case a Fostex Sigma...


Get a big sheet of wood, cut a hole in it, plop driver in, poof, done. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

The size of the baffle and the swept area determines how low it goes, so people who really try to maximize bass response from OB's use hinged side "wings" and big drivers. They're almost always run active.

Planar speakers like Magnepans and electrostatic speakers are "all front, no sides" as well, totally different concepts though //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

Sorry for taking this OT, didn't think it would get any interest here at all //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

Sounds like a build i can complete.