Alesis Nitro Amp; active e-drum monitor; 3" woofer; 70 W peak; 98 dB max. SPL; frequency response: 120 Hz - 18 kHz; 1/4" (6.35 mm) balanced/unbalanced TRS input; Front panel level control and power indicator; Class-D amplifier; drum rack mount with variable angle; clear sound without distortion; suitable for Nitro Max, Nitro Pro and Nitro Mesh kits; incl. external power supply; dimensions (W x D x H): 114 x 109 x 114 mm, weight: 1,5 kg