The USB 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 behaviours 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 (worth $129/£129/€129), Ableton Live Lite, ReLab LX480 Essentials Reverb, Melodyne Essential and more. Start making music now.

POLAR 4 Key Features

4 channel audio interface designed for the recording guitarist.
High-headroom FET input stage that improves tone and quality of signal and accommodates for wide range of instrument types, effect pedals and microphones.
‘Enhance’ feature that introduces electronics into the signal path that replicate the sound of a classic guitar amplifier
‘Enhance’ completely prevents digital clipping for instrument inputs. Drive this interface like it’s a real amp and be free of the fuss of setting the ‘correct’ levels.
‘Enhance’ on the microphone or LINE inputs gives natural clarity and air to vocal and acoustic guitar performances.
The ‘Enhance’ feature negates the need for extra hardware and expensive DI’s to capture high quality guitar signal. It’s all built into POLAR.
MIDI In and Out port for MIDI integration.
Comes with the St. James Suite (worth $129/£129/€129), Ableton Lite, ReLab LX480 Essentials, Melodyne Essential and more*.
Mic preamp based off of the most renowned vintage studio preamps.
Comes with POLAR Control mixing software, giving the control to adjust and fine-tune the levels, panning and routing of your monitoring.
Runs on USB 2.0 bus power, with +48V switch for microphones that require phantom power.

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Winter Sale 2025

Blackstar POLAR 4 - FET Input Audio Interface