this is an enclosure for the amplifier mentioned below. this amp is to be used with 2 of my woofers and one subwoofer.
https://www.amazon.co.jp/-/en/ZK-HT22-Amplifier-Channel-TDA7498E-Subwoofer/dp/B0CDBZTMXJ
ZK-HT22 Power Amplifier Module 2.1 Channel TDA7498E Tone Subwoofer 160WX2+220W