The two headphone outputs have independent volume controls, while source select switches let you create mixes to suit your and your artists needs. Channels of I/O Analog: 8 Inputs / 4 Outputs at 192 kHzMax Sample Rate/Resolution192 kHz / 24-BitDisplay and Indicators 6 x Multi-Segment LED Meters (Clip, Input Level) 2 x LEDs (Clip, Signal) 2 x LEDs (Monitoring Mode) 2 x LED (Phantom Power). Host Connection 1 x USB Type-C (USB 2.0)Analog I/O 4 x Combo XLR-1/4" Balanced Mic/Line Input 2 x 1/4" TS Unbalanced Hi-Z Input 2 x 1/4" TRS Balanced Line Input 4 x 1/4" TRS Balanced Line Output 2 x 1/4 TRS Unbalanced Headphone OutputPhantom Power+48 V, Selectable On/OffDigital I/O None MIDI I/O 1 x 5-Pin MIDI In (On Included Breakout Cable) 1 x 5-Pin MIDI Out (On Included Breakout Cable)Memory Card Slot None.Frequency Response Mic Inputs: 20 Hz to 20 kHz +0.2 dB Line/Hi-Z Inputs: 20 Hz to 20 kHz 0.1 dB Gain Range Mic Inputs: 62 dB Line Inputs: 61 dB Hi-Z Inputs: 59 dBMax Input Level Mic Inputs: +14 dBu Line Inputs: +30 dBu Hi-Z Inputs: +16 dBu Line Inputs: +17 dBu Max Output Level Balanced Outputs: +7 dBu +15 dBu Headphone Output Power160 mW into 32 Ohms (Max). The item "M-Audio AIR 19214 USB 8x4 Audio Interface/ 1 Year Manufacture Warranty" is in sale since Monday, September 23, 2019. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Audio/MIDI Interfaces". The seller is "abr-musicvideosale" and is located in Racine, Wisconsin. This item can be shipped worldwide.