The U46MK2 is a high quality portable USB Audio Interface for DJ's, Producers, and Musicians on the run. It is compatible with many major DJ and music production applications. The U46MKII is more than just a standard 4-IN/6-OUT interface: it features a mix output, headphone output, mic input, and instrument input. It can also get power from most computers via the USB port, eliminating the need for an external power supply. Cross LE and Vinyl Ripper software included. The U46MKII is Core Audio and ASIO Compatible; whether you are a MAC or a PC, the U46MKII is right for you!Features:-Designed for DJs and musicians, offers various input/output configurations-Use the RCA line/phono inputs to connect your turntables-Mic input with +48V phantom power and gain control-Hi-Z input designed for guitar or bass recording-6 line level analog outputs allow you to connect various external devices, even a 5.1 DVD surround system.-Includes MixVibes CROSS LE and Vinyl Ripper softwareTechnical specsInterface- USB Spec Ver1.1, USB Audio Class Spec Ver1.0Analog Input Specifications- 4 Channel Analog input / Line, Phono, Mic, Hi-Z input support- Line Input Level: -10dBV Unbalanced Nominal level, +6dBV Maximum level- Input Impedance - Line: 10K ohmPhono: 47K ohm and 200pFMIC: 6.8K ohmHi-Z: 200K ohm or better- +48V Phantom power support for Microphone inputAnalog Output Specifications- 6 Channel Analog output and Mix output- Line Output Level: -10dBV Unbalanced Nominal level, +6dBV Maximum level- Output Impedance: 100 ohmsADC Specifications- Dynamic Range: 85dB A-Weighted (Typical)- Frequency Response: 20 20 kHz (+/- 0.25dB MAX, @ fs=48 kHz)- Resolution: 18 BitsDAC Specifications- Dynamic Range: 87dB A-Weighted (Typical)- Frequency Response: 20 20 kHz ((+/- 0.25dB MAX, @ fs=48 kHz)- Resolution: 20 BitsHeadphone Amp Specifications- Output Power: 125mW Max @ 32 ohm- Recommended Load Impedance: 32 300 ohmPower Specifications- Power consumption: 2.5W (Typical)- USB Bus powered (500mA Maximum) and DC +9V/500mA Adapter supportSoftware Specifications• Core Duo 1.6 GHz processor or better.• 1 GB RAM.• Service Pack 1 or higher• Available USB Port• Hard disk space for musicMac• 1 GB RAM• OSX 10.4.11 or higher.• Hard disk space for music