21″ 4000 Watts High Output Woofer – PROFILE21 – Blastking
Party Speaker 4000 WATTS, Portable Bluetooth Speaker on Wheels with FREE MIC!!! | eBay
Amazon.com: GEMINI Sound GSYS-4000 Bluetooth LED Party Light Stereo System and Home Theater Audio System with 4000W Watts Shelf Speakers, Dual 12" Woofers, Media Player, FM Radio, USB/SD Playback,Black : Electronics
2x PRV Audio 12MR2000 Midrange Car Audio 12" Speakers 8 Ohm 12MR PRO 4000 Watts 799928734318 | eBay
Amazon.com: RECK Club 3000 4000 Watt DJ/Powered PA Speaker System Combo Set with Bluetooth/USB/SD Card/Remote Control (Two 12-Inch Subwoofers and 8X Array Speakers Set) : Musical Instruments
Rent PA System - 3-4000 watt System in London (rent for £400.00 / day, £214.29 / week)