At Star Sounds, we have branded and professional subwoofers. All our subwoofers are active, so you do not need external power amplifiers. Also, our subwoofers, like RCF 8006As, have an inbuilt cardioid setup. So simply press the cardioid button, and you do not need to worry about any other delay setting or complicated calculations.
At Star Sounds, we have over 10 years of experience setting up subwoofers in live events and other events. Our team is well-versed in setting subwoofers properly to get the maximum output, including cardioid configurations.