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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Wed, Oct-20-2010, 03:42:04 AM   #1
warmwater
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Default Installing front speakers Alpine Type-R SPR-17S

Here is my question

Installing front speakers Alpine Type-R SPR-17S

Their are 3 speaker wires from the bmw HK

One for the 6.5, one for the 2.5, one for the tweet

I am guessing I do not need to use the 2way cross over provided by alpine since it is built in on the hk amp

My thougt is use the tweet wires to the new tweet

Cap the 2.5 wires

The 6.5 use the normal

I cannot believe how these speakers just fit purfect with out any mods other then soldiering the BMW connectors on to wires

I'll take some pics tommrow

Thanks in advanced
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Old Wed, Oct-20-2010, 05:07:16 AM   #2
12vElectronics
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Use

The

Crossovers
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Old Wed, Oct-20-2010, 05:14:32 PM   #3
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Quote:
Originally Posted by Angrywhopper View Post
Use

The

Crossovers
Unfortunately, you are wrong. The OP can certainly install his speakers without the Alpine crossovers. The crossovers in the OEM amp will work fine, I've done it hundreds of times.
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Old Wed, Oct-20-2010, 11:28:59 PM   #4
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Anyone Else on the Crossover

Alpine says if its 3.5K then it is fine otherwise use the 2way cross over provided by alpine.

So my next question is what is the HK Cross over setup?

Alpine wanted me to forget the 2 midrage wires and just use the woofer wire for the woofer and tweet via the 2way cross over, Anythoughts on this guys?
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Old Sun, Oct-24-2010, 12:46:32 AM   #5
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i have the same set of speakers that i had on my is300 but i havent installed them on my M yet. i didnt know if it was compatible. let me know how they sound.
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Old Sun, Oct-24-2010, 01:16:51 AM   #6
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can you install aftermarket speakers in the m without an aftermarket amp (i dont have HK)?
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Old Sun, Oct-24-2010, 06:07:21 PM   #7
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Anyone has answers
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Old Sun, Oct-24-2010, 07:50:10 PM   #8
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There will be a gap in frequency response. You're going from a 3 way front to to a 2 way, eliminating a set of channel that contains specific frequencies. I'm assuming you will forgo the use of the high channel. If you use the high, and forgo the midrange you will have a gap also. I doubt that the hk amp would overlap freq on the high and midrange enough that you can forgo either one. That's why people who upgrade speakers, also upgrade the amp. You can't use the alpine crossover, because you have no amp to drive it with a full bandwidth signal so that it can split the signal to each speaker.
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Old Mon, Oct-25-2010, 06:12:28 PM   #9
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I can assure you, despite what anyone else might recommend, you do not need to use the crossovers. Simply put, the crossover only has 1 input, which requires a full range signal. The crossover then splits the signal into midrange and high range signals for the midrange woofer and tweeter.
The three OEM wires are low pass, band pass, and high pass signals, none of which will provide a full range signal. Therefore, in order to avoid replacing the OEM amp, you will just have to use the outputs from the OEM amp.
The only Alpine speakers that I am aware of that have crossovers that accept bi-amp'd inputs are the SPX series and F1 series. These will accept the OEM low range and high pass inputs.

The midrange woofer from your set will be fine using the OEM amp, I've used speakers from all the top manufacturers paired with BMW audio systems using the OEM amp. However, if you feel extra hesitant using your particular set. You can try it without the crossovers and if you experience any popping, cracking, or burning smells from the tweeter at high volume, you should immediately hook up the high pass OEM wires to the inputs of the crossover and only connect the tweeter to the crossover. This will provide protection to the tweeter.

I've never had to do this with BMW audio systems and I'm confident the OEM crossover points and roll-off rate will provide protection for the Alpine tweeter. On a side note, do not be surprised if your system sounds worse. This is due to the low power output of the OEM amp. Your Alpine speakers might require more input wattage than the OEM amp can provide as they are considered OEM upgrades, not replacements. Hope this helps.
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Eclipse Xa5000 5 ch amplifier [] Clifford 50.7 two way pager [] Custom interior trim (OEM Alcantara) [] Dinan Stage I tune. []
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Old Sun, Jan-02-2011, 09:11:05 PM   #10
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Default Re: Installing front speakers Alpine Type-R SPR-17S

So have you completed the install?
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Discussing Installing front speakers Alpine Type-R SPR-17S in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)