The Apogee Duet or iPad and Mac & Windows is a professional quality handheld audio interface with 24-bit/192kHz sampling, two high-quality preamps with 75dB gain, two Hi-Z inputs, four line outputs, USB MIDI I/O and Apogee’s highest quality DAC technology. When digital recording was in its infancy, conversion didn’t sound quite right to the ears of experienced engineers—even the six. Contact Apogee Tech Support – Chat and Email Response. Need to speak to an Apogee rep? Tech support is free for current & some legacy products only.Speak to an agent via live chat in the lower right corner of your screen (during chat hours), or submit a ticket through the above form.