[kaigoss69]

Well, you have a good point about keeping the stock woofers "safe" by replacing them. I think though that any reasonable adult would not be able to blow these with a high-pass set around 60 - 80 Hz, but I could be wrong.. (and I have been wrong before, unfortunately!)

[Xaero]

Revision:

Sub:
JL 10W6v2
JL XD600/1 Mono Amp
Wicked CAS corner enclosure

Midbass:
Kicker SSMB8 8in under-seat midbass drivers
JL XD200/2 Amp
jtsherri's spacers


Processor:
JBL MS-8 to power the OEM speakers and midbass
Technic's harness

I will try to take pictures and do a small writeup.

[VP Electricity]

Originally Posted by kaigoss69

Well, you have a good point about keeping the stock woofers "safe" by replacing them. I think though that any reasonable adult would not be able to blow these with a high-pass set around 60 - 80 Hz, but I could be wrong.. (and I have been wrong before, unfortunately!)

There are more things in heaven and earth, Horatio

It is impossible to tell over the forums, or in person, which people are reasonable adults... as two decades in car audio have taught me. For my business, I find it best to not depend on judgement and rather to make things robust and durable.

[VP Electricity]

Originally Posted by Xaero

Revision:

Sub:
JL 10W6v2
JL XD600/1 Mono Amp
Wicked CAS corner enclosure

Midbass:
Kicker SSMB8 8in under-seat midbass drivers
JL XD200/2 Amp
jtsherri's spacers


Processor:
JBL MS-8 to power the OEM speakers and midbass
Technic's harness

I will try to take pictures and do a small writeup.

So you are giving 600W to the subwoofer, 75W to the midbass, and 30W to the mids and tweeters? This seems unbalanced.

Is jtsherri now selling spacers that fit the SSMB8?

[taibanl]

Originally Posted by VP Electricity

So you are giving 600W to the subwoofer, 75W to the midbass, and 30W to the mids and tweeters? This seems unbalanced.

Is jtsherri now selling spacers that fit the SSMB8?

VP - in my setup im giving

300w to sub
200w (each) to SSMB8
75w (each) to Rainbow SLC 210.25
~18w (each) to center and rears from MS-8 power

Do you consider that balanced?

JT will make an MDF spacer for whatever you request. He made mine.

[VP Electricity]

Yeah, my concern is about 600W of W6 bass power and 30W (optimistically) of front mid-and-tweeter power. Your system is using more than 2X as much RMS power on the fronts than his and more than 2X as much on the midbass, as well (and I'm not buying that the MS-8 has any clean headroom at all into a 2-ohm speaker). The center and rear effects/side speakers only play steering effects material and are not tasked with much in the way of loading. It's the fronts that get the bulk of the load.

[taibanl]

Originally Posted by VP Electricity

Yeah, my concern is about 600W of W6 bass power and 30W (optimistically) of front mid-and-tweeter power. Your system is using more than 2X as much RMS power on the fronts than his and more than 2X as much on the midbass, as well (and I'm not buying that the MS-8 has any clean headroom at all into a 2-ohm speaker). The center and rear effects/side speakers only play steering effects material and are not tasked with much in the way of loading. It's the fronts that get the bulk of the load.

Thanks just checking.

[elmerm]

Please post pictures. Would love to see your setup.

Originally Posted by Xaero

Revision:

Sub:
JL 10W6v2
JL XD600/1 Mono Amp
Wicked CAS corner enclosure

Midbass:
Kicker SSMB8 8in under-seat midbass drivers
JL XD200/2 Amp
jtsherri's spacers


Processor:
JBL MS-8 to power the OEM speakers and midbass
Technic's harness

I will try to take pictures and do a small writeup.

[Xaero]

Originally Posted by VP Electricity

So you are giving 600W to the subwoofer, 75W to the midbass, and 30W to the mids and tweeters? This seems unbalanced.

Hmmm.. Good point. I think I misread some of the comments.. So the OEM 4inch and tweeters can handle being amped beyond the MS-8?

Should I swap the XD200/2 for a XD600/6? Power the front R/L with 2-channels and Bridge the remaining 4 for the midbass under the seats?

Originally Posted by VP Electricity

Is jtsherri now selling spacers that fit the SSMB8?

I guess so.. They were delivered the other day and seem to fit.

[VP Electricity]

I am not saying that you want to amplify the OEM mids and tweeters with more power. I AM saying that you are planning on using a really LOUD subwoofer and 600W on it, and I suspect that you won't be able to use much of the capability of either component without outstripping the capability of the front speakers and turning into a bass-generating machine. More likely the MS-8 just won't calibrate in such a way that you can get that much out of it, and if you want more you're going to have to jack with it.

I know that here, at our shop, I would not suggest a 600W amp and a W6 with the MS-8 power. I'd either upgrade the front door speakers and add an amp for them, or I'd use a less-expensive woofer (but one where you will get your money's worth out of it).

By the way, the recommended internal volume of the enclosure you mention is only 60% of the recommended volume for that woofer.

[Xaero]

OK, I think I will swap in the XD600/6 to power the fronts and underseat speakers. If the OEM speakers give me problems I will swap them out.

BTW...
Wicked CAS Volume : .75cu. ft.
10w6v2 recommended : .625cu. ft.

only a 17% delta, not 40% :P

[kaigoss69]

Some people like the bass to blend with the rest of the speakers. In that case 300W on the sub and with the L7 speakers on MS-8 power is enough. Other people like for the bass to overwhelm the other speakers. In that case 600W is fine. But then again, double the power is "only" 3dB more...

My personal experience is this: With the MS-8 driving all interior speakers, I never felt the need to crank it all the way. And it sounded good, even at ear-piercing volume. A single 12" in a sealed Best Buy enclosure and 300W was underwhelming. A single 10" woofer in a corner-loaded enclosure with 300W is just right for me. The latter gives you a good back massage, with almost zero rattles inside and outside the car. A box with 2 12" woofers and 1000W firing towards the back of the trunk is the loudest, but the rattles, inside and outside the car, are horrendous. It seems that the corner-loaded application is able to "focus" its energy on the inside of the cabin, and not inside the trunk, whereas all other solutions will release most of the energy inside the trunk, and then some of it will trickle through inside the cabin.

But for me there is no "formula" or "rule" regarding how many watts should be dedicated to the cabin speakers, and how many to the trunk sub. It all boils down to the required volume level at the listening position, and the required energy from the sub.

[VP Electricity]

Originally Posted by Xaero

OK, I think I will swap in the XD600/6 to power the fronts and underseat speakers. If the OEM speakers give me problems I will swap them out.

BTW...
Wicked CAS Volume : .75cu. ft.
10w6v2 recommended : .625cu. ft.

only a 17% delta, not 40% :P

Thought theirs also had a 12". Our e92 has a 12. My mistake. 12w6 wants 1.25. BTW, I measured that enclosure space, and I would be really amazed to find that you could get .75cf with the door in.

[Xaero]

Maybe we are talking about different boxes? This is what I am talking about:

[VP Electricity]

They only have one and it's for a 10" - I misread their site. Again, my apologies.

We thought about using that approach for the E92, but we ended up going like this:









This displaces the battery door, but still doesn't encroach on the cargo floor. The mounting bracket wasn't bolted to the car since this was a test fit.

This works excellently volume-wise with an ID12, W3, W6 if you must, or Morel Ultimo 12.

[Myzhael]

You should change the front speakers also, just the front , those are the ones that you will be listening to...........
Get some rainbow or hertz, have tried both and they are a great ste up!!!!

Originally Posted by Xaero

I am about to make the jump to a full audio upgrade and would like some feedback on my setup.

2009 e92 with Logic7

Sub:
10” Kappa Perfect sub (New - sitting in my closet from a few years ago)
JBL MS-A5001 Mono Amplifiers
Wicked CAS corner enclosure

Midbass:
Kicker 04SSMB8 8in underseat subs (is there a better option for midbass since I have a sub?)

Processor:
JBL MS-8 to power the OEM speakers and midbass

Really, I want to know if the Kickers are the best option for midbass, and if the MS-8 will be strong enough to power them.

[dbltakegs3]

any updates?

[Xaero]

Originally Posted by dbltakegs3

any updates?

I got everything installed but have not had much time to really tune the thing, and it seems to missing some midbass. Seems everyone with the MS-8 is having midbass issues.

I might be selling the car, so this system will most likely be sold:

JL 600/6
JL 600/1
10w6 w/ WickedCAS box
JBL MS-8
Kicker SSMB8

[Scardaddy]

Nice upgrade, I bet the sub knocks...