POLAR 4 is a 4-channel USB audio interface designed by guitarists for guitarists.
It features 4 FET input channels for instrument, line, and microphone, a headphone amplifier, +48V phantom power for condenser microphones, balanced outputs for professional monitoring, level indicators, and Blackstar's exclusive 'Enhance' switch.
POLAR, by using a FET input stage, solves the frustrations guitarists often encounter when recording a guitar. Activating the 'Enhance' function introduces a unique set of electronic components into the signal path, replicating the input stage of classic tube amplifiers. This circuit mimics the behavior and characteristics of tube amps, enhancing the sound, feel, and response.
With the POLAR 'Enhance' function, the innovative Blackstar input stage will never suffer from digital clipping. No more wasted takes, hassles, and confusion related to setting the 'right' levels. POLAR allows the musician to control the interface like the gain of a real amp's preamp.
FEATURES
- 4-channel audio interface designed for guitar recording.
- The FET input stage enhances tone and signal quality and adapts to a wide range of instrument types, effect pedals, and microphones.
- The 'Enhance' function introduces electronic components into the signal path that reproduce the sound of a guitar amplifier. The 'Enhance' function completely avoids digital clipping on instrument inputs. Use this interface as if it were a real amplifier and free yourself from the worry of setting the 'right' levels.
- The 'Enhance' function on mic or LINE inputs brings natural clarity and brightness to vocal and acoustic guitar recordings. The 'Enhance' function eliminates the need for additional hardware and expensive DI boxes to capture a high-quality guitar signal. All of this is integrated into POLAR.
- Comes with the St. James suite (valued at €129), Ableton LiveLite, ReLab LX480 Essentials Reverb, Melodyne Essential, and more.
- POLAR 4 features two headphone outputs and one monitor output, with independent control of monitor and headphone levels.
- POLAR 4 is also equipped with MIDI input/output.
- The microphone preamp is based on one of the most renowned vintage studio preamps.
- Includes POLAR Control mixing software that allows you to adjust and fine-tune levels, panning, and your monitoring routing.
- Powered by USB 2.0 bus power, with a +48 V switch for microphones requiring phantom power.
SPECIFICATIONS
- Number of microphone preamps: 4
- Phantom power: Yes, 48V
- Instrument inputs: 4
- Line inputs: 4
- Line outputs: 2
- Headphone outputs: 2
- Loopback: Yes
- Connectivity: USB Type-C
- Protocol: USB 2.0
- Form factor: Desktop
- Simultaneous I/O: 6 x 6 (including Loopback inputs)
- A/D resolution: 24-bit/192 kHz
- Bus powered: Yes (960 mA)
- Supported sample rates: 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz.
- Microphone inputs:
- Frequency response: 20-20kHz ±0.1dB
- Dynamic range: 109 dB (A-weighted) THD+N -101dB (-103dB A-weighted), 0dB gain, 950mVrms, bandwidth 20Hz-24kHz
- EIN noise -121dBu (A-weighted)
- Maximum input level 2dBu
- Gain range 53dB
- Impedance 3.3kΩ
- Line inputs:
- Frequency response 20-20kHz ±0.2dB
- Dynamic range 112 dB (A-weighted) THD+N -85dB (-85dB A-weighted), 8dB gain, 380mVrms, 20Hz-24kHz BW
- Maximum input level 10dBu
- Gain range 55dB
- Impedance 500kΩ.
- Instrument inputs:
- Frequency response 20-20kHz ±0.2dB
- Dynamic range 112dB (A-weighted) THD+N -82dB (-81dB A-weighted), 3dB gain, 630mVrms, bandwidth 20Hz-24kHz
- Maximum input level 10dBu
- Gain range 46dB
- Impedance 500kΩ.
- Line outputs (balanced):
- Frequency response 20-20kHz ±0.15dB
- Dynamic range 93dB THD+N -80dB
- Maximum output level 12.8dBu
- Impedance 1kΩ.
- Headphone outputs:
- Frequency response 20-20kHz ±0.15dB @ 33Ω / 300Ω
- Dynamic range 110dB @ 33Ω 107dB @ 300Ω THD+N -83dB @ 33Ω -85dB @ 300Ω
- Maximum output level 7dBu @ 33Ω 15.2dBu @ 300Ω
- Maximum output power 85mW @ 33Ω 66mW @ 300Ω
- Impedance 10Ω.
- Analog-to-digital converter:
- THD+N -100dB THD+N
- Dynamic range 114dB
- Digital-to-analog converter:
- THD+N -100dB THD+N
- Dynamic range 114dB
- Power supply: USB 960 mA External (optional) 4.8 W
- Accessories: USB A to DC cable, USB A to C cable
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