I've been using our family's extra car and needs some advice.

Its speakers and headunit have been replaced just to sound better than stock. It has an underseat sub which is only a month old. May nagbigay lang kaya kinabit na rin

Current set up
Headunit: pioneer 275bt
Speakers: teac. Not sure kung anung model pero entry level lang
Underseat sub: focal i-bus 20

Ask ko lang kung ano next na pwede gawin? Amplifier? Any inputs? Salamat!


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