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BreakMyWindow

Some questions regarding the E39 4:3 Mk2 stereo system

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It appears I have a rather odd system in the M5. Has the Mk2 4:3 onboard monitor, but no dsp, and no hifi - just 6 speakers - I couldnt see an amp in the boot with the 9pin and 26pin connector for the 10 speaker arrangement. There is also a seperate MID in the rear centre console, that has the ability to change stations, switch between radio, tape and cd. The OBC functions can also be displayed.

Thinking that I did have the amp, I was just going to install a small old-school Alpine 2 channel amp to power a sub to fill in the low end. I have done this on my previous 540i that had the 10 speaker hifi system, and was happy with it, as im not cranking it up passed 11 like i used to when i was younger.

So with the stereo I have in the M5, i'm wondering how many watts continuous is being powered to the 6 speakers? Im thinking about just replacing the front 5.25 woofers and tweeters with some mid-range Alpine component units. I'm not going to bother though if the output is something really measly like <5 watts rms per channel.

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It appears I have a rather odd system in the M5. Has the Mk2 4:3 onboard monitor, but no dsp, and no hifi - just 6 speakers - I couldnt see an amp in the boot with the 9pin and 26pin connector for the 10 speaker arrangement. There is also a seperate MID in the rear centre console, that has the ability to change stations, switch between radio, tape and cd. The OBC functions can also be displayed.

Thinking that I did have the amp, I was just going to install a small old-school Alpine 2 channel amp to power a sub to fill in the low end. I have done this on my previous 540i that had the 10 speaker hifi system, and was happy with it, as im not cranking it up passed 11 like i used to when i was younger.

So with the stereo I have in the M5, i'm wondering how many watts continuous is being powered to the 6 speakers? Im thinking about just replacing the front 5.25 woofers and tweeters with some mid-range Alpine component units. I'm not going to bother though if the output is something really measly like <5 watts rms per channel.

Depending on what radio module is fitted, it'll be either:

BTL, delivering "high power", around 25W RMS per channel (4 channels)

non-BTL, delivering "low power" around 6W RMS per channel (4 channels)

So tell us what radio module is fitted (read the label on the module, or query it using NavCoder)

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On this, how much watts is being powered to the speakers on a system with the amp in the boot?

I have the 4:3 monitor, 1997 540i

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On this, how much watts is being powered to the speakers on a system with the amp in the boot?

I have the 4:3 monitor, 1997 540i

With or without DSP?

With or without subwoofer?

Standard amp:

DSP Amp:

10 Channels x 25W per channel = 250W

(Front = 6 channels, rear = 4 channels)

Standard Amp:

25W per bass channel = 4x25 = 100W

15W per mid and per high range channel = 6x15 = 60W

Total = 160W

Add subwoofer at about another 30W per channel, 2 channel, = another 60W or so.

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