MK3 Sony Sub easy upgrade - Focus Fanatics
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Old 04-23-2014, 08:15 AM   #1
EggYolkBill's Avatar
Join Date: Jun 2003
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Location: Braselton, GA
What I Drive: '13 Performance Blue Titanium HB

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MK3 Sony Sub easy upgrade

So, I took my existing Sony sub out of my car and replaced it with a Kicker L5 sub and box that I had from a previous vehicle. I initially just wanted to see if it would even work with the existing amp.

The Sony sub appears to be a 2ohm load and the L5 is also 2ohm capable. I had to rewire the box in order to accommodate this since the Kicker box only provides a single connector and is 2ohm wired internally. The Sony sub has two sets of connectors.

I am honestly amazed at how well the factory amp drives the Kicker L5 and will keep this setup for a little while until I get around to adding a more powerful sub amp. I did have to make a crappy sort of custom connector to connect to the existing wiring but I will correct that soon enough.

The real lesson here is that the OEM amp is very capable of driving an aftermarket sub, I imagine this is mostly thanks to it being 2ohm stable.

Here is a pic of the current install:

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