Quote:
Originally Posted by 9uman9y
Here is a "recording" using iPhone, if you what to see if you have the same in your car
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This sounds like possibly noise floor issues in the design of the system.
Basically, the amp's input stage generates the noise from the input device based on how they're connected/implemented; further, if there's other resistance in series to the input, this will add more noise. Plus it could also be volume control noise from the pre-amp depending on how it's all built.
Given it sounds like you've replaced the amps and head units (are they all-in-one?), and given it's in more than one B&W system, it sounds like an artifact of the design - could be due to a design originally made for less power, but then had the power upped without a redesign? Or possibly they swapped in different components from a new vendor?
$3k+ should buy better than that - a vehicle is a shitty place (impossible?) for hi-fi music in general, but, yeah, that crackling would bother me given I do some critical listening.