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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Can the bimmertech amp be used to power standalone sub as well



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      08-16-2017, 04:46 PM   #1
IWantAnE92
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Can the bimmertech amp be used to power standalone sub as well

Hey,

I have the Bimmertech amp which is driving the speakers in my M3. If I get a trunk sub as well, are there enough channels on the PP to drive the sub or would I need another amp to drive that?

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      08-24-2017, 08:56 PM   #2
IWantAnE92
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Can anyone shed some light on this please?
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      08-24-2017, 11:59 PM   #3
ctuna
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Well if you buy the Helix 82dsp and or download the manual
it says the factory version will allow you to assign 4 channels
to a sub which gives you 200 watts I believe. But the Bimmertech
harness may not be layed out to do that. So you would have to talk to
them for clarification. I believe they only use 6 channels out of the
8 also. 100 or 200 watts doesn't seem to be enough for a proper sub.

The Bimmertech amp is the Helix 82dsp that they
have customized by Helix to run on low level inputs.
The minimum I would think about is 300.
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      09-01-2017, 08:27 PM   #4
6spdcoupe
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Depends on the sub, your output desires and what you want to give up- the amp is currently running 7 channels so lose center channel and then you have two remaining. Something like a reconfigured PP8E would work fine from this (just as an example).
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