Where can I purchase the low pass coils and high pass capacitors?
The low pass coils and high pass capacitors can be purchased from any high-end car audio shop. They’ll either have them in stock, or they should be able to order them. Just ask for two 5.1mHy (mHy stands for “mili-henry”) 125Hz low pass coils and two 265mfd (mfd stands for “micro-farad”) 150Hz high pass capacitors. The pair of coils should run about $30, and the capacitors (aka “bass blockers”) should be around $10 to $15 for the pair.
