The Blackstar POLAR 4 Four Channel USB Audio Guitar Interface is a 4 channel USB audio interface built by guitarists for guitarists. It features 4 high headroom FET input channels for instrument, line and microphone, two high output headphone outputs, plus 48V phantom power for condenser microphones, balanced outputs for professional monitoring, visual level meters, a MIDI In and Out port and the proprietary Enhance switch. POLAR comes bundled with the studio software collection including the full St. James Plugin Suite and everything you need to start recording now. Features It is inspired by renowned vintage studio preamps and POLAR’s microphone preamps deliver warm, rich tones and authentic character, enhancing the overall depth and quality of your sound. Exclusive to POLAR 4 is MIDI In and Out port, enhancing the versatility of input and output options for musicians and producers who integrate MIDI devices into their creative workflows. POLAR 4 boasts an additional line level output 3 and 4, along with second headphone output featuring its own volume knob for seamless and intuitive control. It helps you to experience studio-grade clarity and detail featuring pristine 24-bit and 192 kHz resolution for capturing every nuance of your sound.