Blackstar Polar 4 USB Audio Interface

POLAR is the go-to audio interface for guitarists that seek the ultimate recording guitar tone.

POLAR 4 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, +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!

The Audio Interface for Guitarists

POLAR is THE audio interface that is specially designed to enhance your guitar DI signal in a way that brings back the coveted feel and response of playing through a real valve guitar amplifier.

Incredible Tone

POLAR is equipped with FET instrument inputs, providing ultra-low noise and high headroom for the best sonic foundation for your guitar tone.

Feels Like A Real Amp

“Enhance” restores the touch, feel, and response of playing through a real amp. When the Enhance switch is engaged on the instrument input, a unique circuit is introduced that mimics the input stage of a real valve amplifier, including all of it’s non-linear behaviors and characteristics.

No Digital Clipping, Set Levels With Ease

With “Enhance” activated, you can capture guitar levels without worrying about digital clipping. This feature allows you to drive POLAR’s preamps like a real valve amp, making level adjustments easy and ensuring smooth handling of dynamic guitar signals, thus avoiding harsh tones and ruined takes.

World-Class Microphone Preamp

Inspired by renowned vintage studio preamps, POLAR’s microphone preamps deliver warm, rich tones and authentic character, enhancing the overall depth and quality of your sound.

Engaging “Enhance” gently lifts the top end of your signal, bringing out the natural clarity and air from vocal performances, acoustic instruments, and more.

Everything You Need to Record Guitar and Vocals

POLAR comes with a studio software collection including the St. James Plugin Suite, Ableton Live Lite, ReLab LX480 Essentials Reverb, Melodyne Essential and more. Start making music now.