[hdmark]

Originally Posted by ctuna

Why reinvent the wheel
The stock speakers are crap in stock base system
the under seats are only 6.5 inch
in the stock system. Not a good idea to just amp any
part of the base system.

id be amping temporarily until i was able to buy the new speakers

also, thinking that if i ever do add a sub (which, lets be honest... i probably will very soon ), il probably remove the rear deck speakers after all to allow more air into the cabin from the trunk

[GATORB8]

Originally Posted by Larrye90

Does anyone here know for sure if part # 51337171201 and 51337171202 are the right sail for a 2010 e90 328i

Use your vin at realoem.com

Category Vehicle Trim -> Front Door

This should be close, but I don't know you're production date:
http://www.realoem.com/bmw/enUS/show...diagId=51_5713

I cut my base foam backers, but it'd be cleaner to order the Hifi version with a recess for the tweets.

[GATORB8]

Originally Posted by Larrye90

Thanks maybe it is a 4 . I wanted to do a 0 g but I think too big

Remember, you only have to make it to the other side of the trunk. Not like a standard install where you're running from front to back.

Wire gauge calculator:
http://www.bcae1.com/wire.htm

[GATORB8]

Originally Posted by Larrye90

Thank u everyone for the help .

I just didn't get this last part sorry. ( You could try it pretty easily by jumping the signals at the underseat connector to skip the underseat speaker.)

If I amp the Underseats only but keep the volume kinda low so it won't drown out the door speakers then I'm good for now right.

Right now the underseats and fronts are wired together at the underseat box. You would need to decouple that. You would tap off of the car side of the connector for the signal AND send the original signal back out to the doors.

[GATORB8]

Originally Posted by hdmark

perfect. and were sure its 25W for the CIC right? i thought i saw it was 25w x 2 ohm for CCC. so probably less power for a 4 ohm load. but with the 25w x 2 ohm output that would give me V= sqrt(25*2) = 7.07 v which is acceptable.
im hesistant to feed a 10v signal into an amp that only accepts 8v

I doubt that the load is really 2 ohms full the frequency range. There's a basic crossover system splitting them up.

If anything, I would give JL a call and ask, otherwise use an LOC atleast.

[GATORB8]

Originally Posted by hdmark

id be amping temporarily until i was able to buy the new speakers

also, thinking that if i ever do add a sub (which, lets be honest... i probably will very soon ), il probably remove the rear deck speakers after all to allow more air into the cabin from the trunk

I would recommend at minimum adding the Hifi tweeters to the stock doors and trebling down. The 4s just can't play crap in that frequency range.

[hdmark]

Originally Posted by GATORB8

I doubt that the load is really 2 ohms full the frequency range. There's a basic crossover system splitting them up.

If anything, I would give JL a call and ask, otherwise use an LOC atleast.

ya thats a good call. ill call them up and ask. rather stay away from LOC becuase at that point ill just recode anyway.
i guess ill end up recoding regardless and it wont make a difference lol

Originally Posted by GATORB8

I would recommend at minimum adding the Hifi tweeters to the stock doors and trebling down. The 4s just can't play crap in that frequency range.

and i would but at that point ill just be replacing all of the speakers. i mean id be going without hte speakers for like a month until my credit card resets. not waiting too long. just dont know if i have the money right now to spend the extra few hundred on speakers

[Larrye90]

Originally Posted by hdmark

ya thats a good call. ill call them up and ask. rather stay away from LOC becuase at that point ill just recode anyway.
i guess ill end up recoding regardless and it wont make a difference lol

and i would but at that point ill just be replacing all of the speakers. i mean id be going without hte speakers for like a month until my credit card resets. not waiting too long. just dont know if i have the money right now to spend the extra few hundred on speakers

Yea I think I'm just going to amp the Underseat subs first with a JL-audio 6 channel and when I find the right speakers at the right price I'll add them to the amp

[Larrye90]

This setup should work right ? Even though it's 8.5 "
MB Quart QM200.3BMW 8.5" 4 Ohm 3-Way Speakers

[GATORB8]

Originally Posted by Larrye90

This setup should work right ? Even though it's 8.5 "
MB Quart QM200.3BMW 8.5" 4 Ohm 3-Way Speakers

Yes, they are specifically made for the E90.

Some pretty wussy power handling for aftermarket stuff, though. Probably meant to sound best with just the Hifi amp.

[Larrye90]

Originally Posted by GATORB8

Yes, they are specifically made for the E90.

Some pretty wussy power handling for aftermarket stuff, though. Probably meant to sound best with just the Hifi amp.

I want to put the jl-audio 600/6

[GATORB8]

Originally Posted by Larrye90

I want to put the jl-audio 600/6

Wierd, the specs on amazon and on MBQs site are different, may want to be careful you are getting the right product.

[Larrye90]

Originally Posted by GATORB8

Wierd, the specs on amazon and on MBQs site are different, may want to be careful you are getting the right product.

For the MBQuarts ??what part ??it looked the same to me

[Larrye90]

Originally Posted by Larrye90

For the MBQuarts ??what part ??it looked the same to me

So the MB Quart QM200.3BMW 8.5" 4 Ohm 3-Way Speakers

Any idea if it's a good speaker. I head the new MBQuarts this days aren't well made ??


Opinions

[GATORB8]

Originally Posted by Larrye90

For the MBQuarts ??what part ??it looked the same to me

Look down in the description on Amazon, may just have been copied from the wrong item:

This system is perfect for specific BMW Models that can be hard to find speakers for. This system includes tweeters, midrange, 12dB crossovers and subwoofers. The Subwoofers included are 216mm 4 Ohm 60 Watt RMS and 120 Watt max power subwoofers. They have a 32mm Voice Coils, Neodymium magnets, and steel frame Treated Paper cones with a foam surrounds. The Midrange Speakers are 100mm 4 Ohm 20 Watt RMS, 40 Watt Max and have 25mm Voice Coils, Neodymium magnets and steel frame treated Paper cones with foam surround. The tweeters and active crossovers are 55mm 4 Ohm 10 Watt RMS, 20 Watt MAXX 25mm tweeters with 25mm voice coils, silk dome tweeters and neodymium magnets. The high end active crossovers have 12dB slopes for the high pass speakers These speakers are designed to fit the following BMW Models: - Compatible Models: - F10/F11 5 Series 2010-present - E60/E61 5 Series 2003-2010 - E81/E82 1 Series 2004-present - E87 1 Series 2004-2007 - E88 1 Series 2007-Present - E90/E91 3 Series 2006-2011 - E84 X1 2009-Present We are an authorized MB Quart Dealer!

[Larrye90]

Originally Posted by GATORB8

Look down in the description on Amazon, may just have been copied from the wrong item:

This system is perfect for specific BMW Models that can be hard to find speakers for. This system includes tweeters, midrange, 12dB crossovers and subwoofers. The Subwoofers included are 216mm 4 Ohm 60 Watt RMS and 120 Watt max power subwoofers. They have a 32mm Voice Coils, Neodymium magnets, and steel frame Treated Paper cones with a foam surrounds. The Midrange Speakers are 100mm 4 Ohm 20 Watt RMS, 40 Watt Max and have 25mm Voice Coils, Neodymium magnets and steel frame treated Paper cones with foam surround. The tweeters and active crossovers are 55mm 4 Ohm 10 Watt RMS, 20 Watt MAXX 25mm tweeters with 25mm voice coils, silk dome tweeters and neodymium magnets. The high end active crossovers have 12dB slopes for the high pass speakers These speakers are designed to fit the following BMW Models: - Compatible Models: - F10/F11 5 Series 2010-present - E60/E61 5 Series 2003-2010 - E81/E82 1 Series 2004-present - E87 1 Series 2004-2007 - E88 1 Series 2007-Present - E90/E91 3 Series 2006-2011 - E84 X1 2009-Present We are an authorized MB Quart Dealer!

Sorry what the part that's wrong??

[GATORB8]

Originally Posted by Larrye90

Sorry what the part that's wrong??

RMS power handling, instead of 80w, it's 60 subs 20 mids and 10 tweets. The materials listed for each speaker are wrong, too.

[Larrye90]

Originally Posted by GATORB8

RMS power handling, instead of 80w, it's 60 subs 20 mids and 10 tweets. The materials listed for each speaker are wrong, too.

I see I see . I wonder why is that

[hdmark]

so on MB's site, it looks like its 80w for the components and 80w for the sub

The QM200.3 BMW is a partially active 3-way sound system that must be operated by a 4-channel amplifier or two 2-channel
amplifiers! These amplifiers must have an adjustable low-pass filter on 2 channels and an adjustable high pass filter on the other
2 channels. Please refer to the instructions in section „6. Amplifier Interconnection“.

Specifications:
Power Rating RMS 4 x 80 Watts
Power Rating Max. 4 x 120 Watts
Impedance 4 Ohms

taken right from the MB quart manual

but now im confused becuase everywhere else has them listed like amazon does. so different models?

or maybe everyone gets confused when quart calls for 80W becuase they assume it only needs 80W for all 3 speakers?
I mean in the manual it says 4 channels. So to me that would mean you need 80W for the 8's and 80w for the components. unles the components just wont draw much power but you need 80 for the woofers?

also ... on the box it says 480W power

that would lead me to believe that each speaker is the 80w RMS and 120W max (4x120 - 480)

FINAL CONCLUSION - I'm going to say that the quart's can take 80W RMS to each of the speaker sets (80 to the woofer, 80 to the components). otherwise it makes no sense at all that the box and the manual would have the 480w number, or require a 75x4 amp. Somehow someone must have mislabeled it and everyone else started copying it incorrectly
Also, this ebay seller from the UK looks like the description is correct
http://www.ebay.co.uk/itm/MB-QUART-Q...-/170942892363

[hdmark]

So i think ill be going with the mb quart system in the front. ill probably leave the rear deck speakers like they are and leave them powered weakly off the HU or just rip them out completely when i install the sub eventually

[Larrye90]

So I'm guessing the MBQuarts too. I wonder are the sws- 8 better then the MBQuarts sub ???

Focal or MBQuarts??

[hdmark]

Originally Posted by Larrye90

So I'm guessing the MBQuarts too. I wonder are the sws- 8 better then the MBQuarts sub ???

Focal or MBQuarts??

focals are definitely gonna sound better considering the cost of focal fronts are as much as the entire mbquart kit but im thinking the 200 saved is gonna be worth it for right now becuase im gonna use it for the jl 400/4v2