Studio Monitors & Speakers
Proel S18A
Proel S18A, Active Hybrid Bandpass Sub-Woofer, With integrated ClassD digital power amplifier, Equipped with: 18" Woofer, Power: 600 Watts, Frequency range: 34 - 140 Hz, Maximum output level: 131 dB, Switchable high cut: 80 Hz/160 Hz, Switchable...
https://www.bizrate.co.uk/musicalinstrumentmonitors_speakers/proel-s18a-oid9064143306.html