[grvv]

Hello, I thought I would list my tentative upgrade to see if anyone had better ideas for my 2009 E92.
Front doors: CDT ES-03 1.69"/42.92mm depth
twitters CDT DRT-25 1" SILK DOME
Crossover CDT EX-550i
Front center: Super range Accent Fill System AF-256/02BL
rear panels: CDT ES-04 2.28"/57.9mm depth
twitters DRT-25
Crossovers same as above
Rear Center stage Model: CS-020X on package tray
Under seat mids:
ES-6iM 6.5" slim cast inverted magnet mid-woofer
1.87"/47.5mm mounting depth
Kicker SSMB8's I just bought a brand new pair, I will use whichever set sounds better to me
Trunk sub JL 10W6v2-D4 mounted in a Wicked custom enclosure over battery
JBL MS-8
three Amps, two JL xd600/6, and one xd600/1

[grvv]

bump

[ctuna]

I haven't seen these speakers used here before.
which is probably why you are not getting much of a response.

[Delusive]

Originally Posted by ctuna

I haven't seen these speakers used here before.
which is probably why you are not getting much of a response.

+1

I never heard of those before, but the trunk sub sounds familiar I wonder where he getting his enclosure.

[grvv]

CDT speakers Technics has used, there based out of SoCal, I have talked to three high end shops and they all said that they sound really nice. the enclosure was bought from wicked http://www.wickedcas.com/product.php...0&cat=0&page=1

CDT
http://cdtstore.com/index.htm

[QUiKSR20]

Ive used CDT in my other car and they sound awesome and I couldn't beat the price. Didn't know they made a 4" that fit in E90/E92's

[grvv]

4" for the back seat, 3" for the front panels, that's what they have in their demo X3 bmw

[grvv]

Just got a brand new pair of Kicker SSMB8's

[taibanl]

Originally Posted by grvv

4" for the back seat, 3" for the front panels, that's what they have in their demo X3 bmw

Are you building an x3? If not, go for a 4".

[grvv]

The ES-04 that I have in the back is 2.28" deep (58 mm), and the ES-03 1.69 (43 mm) they will fit in front door panels. I would like to put the 4"ers in front if they would fit. These are going in 2009 E92

[taibanl]

Originally Posted by grvv

The ES-04 that I have in the back is 2.28" deep (58 mm), and the ES-03 1.69 (43 mm) they will fit in front door panels. I would like to put the 4"ers in front if they would fit. These are going in 2009 E92

Ok I see your issue is depth. Why not choose a different 4" driver?

The kicker's can supposedly play up to about 500hz but you really don't want that as it will pull your soundstage down. Better to have a larger driver in the door.

[grvv]

What about using the CD ES-6im 30hz to 6000hz

[taibanl]

Same concern. Whatever speakers you have under your seats will be having to make up for the freq's a 3" cannot play.

[grvv]

The 3" is 119hz to 11000hz and the 4" 50hx to 10000hz

[taibanl]

Originally Posted by grvv

The 3" is 119hz to 11000hz and the 4" 50hx to 10000hz

So that's good technical info...

the 119hz is probably "measureable output" down to that frequency. Without looking at a frequency response curve it is difficult to tell how much output you will get from there.

That being said, 200hz is a workable crossover point from underseats to doors. Which might work with your 3" without pulling the soundstage down.

So unfortunately with the coupe, there are fewer options in the 4" range available but there are still quite a few. Have you already purchased the CDT?
Personally, I would try for a 8"/4" combo as its tried and true. So much info on this forum there is no need to reinvent the wheel, just tweak what others have done to your liking.

[grvv]

Do you think I could get the 4" I have in the front doors. CDT does have an ultra slim 4" that is 1.25 (31.75) deep 100hz to 5000hz, while it's not a cheap speaker it is their least expensive.