Btuty EQ-215 Dual Channel 15-Band Equalizer 1U Rack Mount 2-channel Stereo Graphic Equalizer Features: Professional dual channels stereo graphic equalizer. 15-band design with ±12db adjustable range for each channel. With LOW-CUT switch for effectively eliminating the low frequency noise. With BYPASS switch for convenient machine debugging. XLR balanced and 1/4" TRS unbalanced inputs & outputs. Standard 1U rack mount design, easy installation. Specifications: Plug: US, EU, UK (optional) Working Voltage: 110-240V Input Impedance: 22KΩ Output Impedance: 200Ω Frequency Response: 20Hz~20KHz Total Harmonic Distortion: 0.05% (1KHz) Signal to Nosie Ratio: >90dB Material: Metal Item Size: 482 * 122 * 45mm / 18.98 * 4.80 * 1.77in Item Weight: 1530g / 3.37lb Package Weight: 1899g / 4.19lb Package Size: 53 * 22 * 8cm / 20.87 * 8.66 * 4.15in Package List: 1 * Equalizer 1 * Power Cable 1 * User Manual (English)