Studio Monitors & Speakers
the box pro TP218/1600 A
the box pro TP218/1600 A, Active Subwoofer, Steady subwoofer with high-quality workmanship for commercial use, Equipped with two 18" bass reflex speakers, Class D power amp, Power: 4500 W peak, Birch multiplex housing with black non-slip lacquer...
https://www.bizrate.co.uk/musicalinstrumentmonitors_speakers/the-box-pro-tp218-1600-a-oid5874041998.html