Blackstar POLAR-4 Guitar Audio Interface
Joining Blackstar’s POLAR 2 audio interface is the new POLAR 4 Channel Audio Interface designed specifically for anyone who records guitar.
Blackstar's market research shows that most people who use an audio interface to record music at home record guitar and identified three main challenges people experience when recording guitar directly through an interface: poor feel/response, difficulty setting input levels without clipping and hard-to-use. The POLAR 2 & 4 audio interfaces overcome all these challenges making it the ultimate solution for anyone who records guitar.
1. Feel and response of a real guitar amp
The only audio interfaces in the market with a FET input stage and “Enhance” feature that mimics the behaviour, characteristics, and electronics normally found on the input stage of a valve guitar amplifier. Plugging a guitar directly into a normal audio interface produces an anaemic signal with peaky transients, which makes playing through amp plugins sound like… a plugin, not an amp.
With the flick of a switch, POLAR’s “Enhance” feature makes all software amp plugins sound better by restoring the touch, feel and response of real amps. Works perfectly with pedalboards, no need for D.I. boxes or extra hardware.
2. Setting levels made foolproof
The innovative input stage will never digitally clip, allowing the user to drive the interface like an amp. The input stage has an impressive amount of headroom running on +/- 12V giving 24V headroom, an outstanding comparison to competitor units at 5V. Setting guitar input levels and improving your tone has never been easier.
Blackstar put an equal amount of effort into designing the POLAR MIC preamps, which boast a response that matches one of the most famed preamps in studio history: the Neve 1081.
3. Quick and simple to use
While “Enhance” improves feel, it was also engineered with an input stage that can never digitally clip for foolproof input level setting. Users can set levels quickly without worrying about clipping, allowing them to focus on the most important part: the music.
POLAR’s innovative features, alongside an incredibly low noise floor (115db), 48V phantom power and headphone outputs that can drive both high and low-impedance models, make POLAR the go-to audio interface for all musicians who record guitar and audio.
POLAR 4 also adds MIDI capability and dual headphone outputs, elevating its feature set for professional recording and production situations.
Specifications Polar 4
- 4-channel version
- FET high headroom +/-24V inputs, low noise -121dB
- INST “Enhance” switch reacts like the input stage of a valve amplifier
- INST “Enhance” input never clips, foolproof input level setting
- MIC “Enhance” adds air and clarity with preamp same response as Neve 1081
- 2 x Headphones Outputs & Monitor Outputs
- 48V Phantom Power
- MIDI In & Out (4-channel only)
Polar Control
App With every Polar interface comes Blackstar’s versatile Polar Control mixing software, available for both Windows and Mac.
| Brand | Blackstar |
| SKU / MPN | BM845644008766 |
| GTIN / Barcode | 845644008766 |
| Condition | Brand new, in original manufacturer packaging |
| Availability | In stock — ready to dispatch |
| Dispatch | 1–2 business days after payment confirmation |
| Delivery | Free tracked shipping Australia-wide, typically 2–7 business days; remote areas may take longer. We ship within Australia only. |
| Returns | 14-day returns — see our Return & Refund Policy. Consumer guarantees under the Australian Consumer Law apply. |
| Warranty | Manufacturer warranty terms vary by brand. If warranty coverage matters for this purchase, contact us before ordering and we will confirm what applies to this item. |