[Pre Order - allow extra time] Rolls MX44 Pro 4-Channel Stereo RCA & 3.5mm Mixer 4 x Stereo RCA Inputs, 4 x Stereo 3.5mm Inputs, RCA and 3.5mm Stereo Outputs, Up to 30 dB of Gain per Channel, Frequency Response: 20 Hz to 30 kHz, Battery or DC Powered,...