HCCA subwoofers are available in three tiers, each designed for different SPL (Sound Pressure Level) goals. The SPLX series leads the lineup with unparalleled bass and record-setting capabilities. The SPL series achieves a balance between power and performance, making a significant impact in SPL events. Serving as the gateway into SPL performance, the HCCA series, across all tiers, establishes HCCA subwoofers as a dominant force in SPL competitions and beyond.