Hi, I have an 8 inch alpine SWE-815 has 100 horse power and bass is enough but is not that respiratory sistem vibrating bass and wantes to ask if upgrading to one
Alpine SWE-815 SWE815 – 8” (20cm) Amplified Subwoofer Box - Base Systems
Alpine Electronics SWE-815 300W 8" Active Subwoofer, with Custom Enclosure, Remote Control, 4Ω Single Voice Coil : Electronics - Amazon.com