DS18 DS-AMPFU Two 15-Inch Passive Loudspeakers with 4-Channel 200-Watt RMS and 3,200-Watt Peak Amplifier/Mixer/BT/SD/USB This Four (4) Channel 200 Watt Amplifier/Mixer Comes with Two (2) Passive Loudspeakers and Bluetooth, SD, and USB Capabilities The Passive 15" 2-Way Professional Loudspeakers Feature a Compression Driver with 1.34" Titanium Diaphragms Including the 5M (Speakon) Input Cables Frequency Response of 30 Hz - 22 KHz Crossover Frequency: 2.2 KHz Integrated 35mm Speaker Stand Mount