General Car Audio Discussion & QuestionsAll general car audio discussion goes here. Need help installing speakers, headunits, amps or electrical? Having problems with equipment? Have questions about a product, post here.
I'm assuming the psi will sound a little better , I don't have any experience with them though , I do with hdc's though. The hdc's do get quite loud but if your looking to kill some lows they don't like low tuned boxes very well.
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