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      11-27-2020, 08:22 AM   #6
ellipsis212
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Drives: 2017 M3
Join Date: Jun 2009
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2018 BMW M3  [0.00]
Quote:
Originally Posted by kchan View Post
Quote:
Originally Posted by fiveohwblow View Post
I’m with you, and asked in another thread and never got response. I also want to make sure I am not thread jacking but believe this is appropriate and contributes:

The bavsound sub is 4 ohms. I was told anything below 7.2 ohms over taxes the factory hk amp. Is this true? If so, are you planning on powering the replacement “subs” with another amp?
I thought the bavsound sub matched the factory and should be ~ 7 ohms? I think the sub was meant for a direct drop in without upgrading amp for it. Of course with a separate amp it will sound better. But if I plan on upgrading the amp, I am not sure if it's better going with a lower ohm sub, since shouldn't an aftermarket amp provide more power (provided it's stable to let say 2 ohm)? Typically 4 ohm output let say 200W, 2 ohm (if stable) will be ~350-400W? Does it mean if it's 7 ohm the power will only be ~ 100W?
I believe they're 8 ohm woofers for the F80 HK system. They make them in other flavors depending on the car.
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