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ART Pro Audio USB Dual Pre – Two Channel preamp with USB - Supreme Audio
ESI planet 22x 2-Channel Dante Audio Interface ESI-PNT22X B&H
Focusrite Scarlett Solo - 2-channel USB 2.0 audio interface - Avacab
Amazon.com: Pyle Professional Wireless DJ Audio Mixer - 2-Channel Bluetooth DJ Controller Sound Mixer w/USB Audio Interface, RCA In, Combo Jack XLR+6.35mm Microphone/Line/Guitar In, Headphone Jack - PAD12MXUBT : Musical Instruments