AKG K612 PRO – 120 Ohm Open-Back Reference Studio Headphones
AKG K612 PRO | Open-Back Reference
- Open-back, over-ear reference headphones
- Patented Varimotion diaphragm technology
- Computer-optimised neodymium magnets
- 120 Ohm impedance; 101dB SPL/V sensitivity
- 12Hz–39.5kHz frequency response
- Self-adjusting genuine leather headband
- Replaceable velour ear pads
- 3m cable; 3.5mm plug with 6.3mm adapter
MIXING | CRITICAL LISTENING | OPEN-BACK DESIGN
AKG K612 PRO: Space to Hear the Mix
The AKG K612 PRO is an open-back reference headphone for monitoring, mixing and focused listening in a quiet space. Its Varimotion diaphragm and computer-optimised neodymium magnets form a driver system designed for detailed imaging.
A genuine leather self-adjusting headband, over-ear velour pads and a long single-sided cable support a stationary studio workflow. This is the 120-ohm model, so pair it with a capable headphone output.

Explore the Features

FEATURE 01
Open-Back Spatial Listening
The vented earcups give you an open listening perspective for judging panning, ambience and the relationship between instruments. Choose a quiet room because environmental sound can reach your ears.
FEATURE 02
Varimotion Diaphragm
AKG’s diaphragm design uses controlled variation across the diaphragm to support its intended acoustic behaviour. Listen for small changes in balance and positioning when comparing takes or mix revisions.
FEATURE 03
Neodymium Magnet System
Computer-optimised magnets support the driver’s low-distortion design. Feed the headphones a clean signal and use familiar reference tracks to keep comparisons meaningful.

FEATURE 04
A 120-Ohm Studio Partner
Use an audio interface or headphone amplifier with sufficient clean output. Impedance and sensitivity together affect source matching; a passive jack adapter does not add amplification.

FEATURE 05
Genuine Leather Headband
The self-adjusting leather band follows your head position while the arches support the assembly. Adjust the headphone placement so both ears sit comfortably within the pads.
FEATURE 06
Velour Pads Around the Ears
Replaceable velour pads provide a soft over-ear contact surface. Maintain a consistent pad condition when using the headphone as a regular reference.
FEATURE 07
Lightweight Structural Design
Aluminium arches and solid rivets support the fit without unnecessary bulk. The design is intended for stationary listening and does not fold down like a travel headphone.
FEATURE 08
Single-Sided 3m Cable
The cable reaches from your listening position to an interface or amplifier. Its gold-finish 3.5mm plug and supplied 6.3mm adapter fit common studio headphone outputs.
Use a Quiet Room for Critical Work
Open headphones allow sound to pass both ways. They work well for evaluating stereo placement, but a loud room can mask details and a nearby microphone may pick up playback.
For vocal tracking, use closed-back monitoring and return to the K612 PRO for mix decisions. Work at moderate levels and take breaks rather than compensating for background noise with more volume.
Build a Complementary Monitoring Setup
Compare AKG K712 PRO for another AKG open-back reference option. Choose AKG K92 when closed-back monitoring is the priority.
For desktop listening, assess FiiO K11 R2R or FiiO K7 against your source and connection requirements.
Frequently Asked Questions
Is the K612 PRO open-back?
Yes. Sound passes through its open earcups, so it is best used in a quiet space.
What impedance is it?
Its nominal impedance is 120 Ohm, with sensitivity rated at 101dB SPL/V at 1kHz.
Does it need a dedicated amplifier?
A capable headphone output is recommended. Some portable outputs may offer limited headroom; assess both output capability and your required listening level.
Is it suitable for recording near a microphone?
Its open design can leak playback into a nearby microphone. Closed-back headphones are generally more practical for that task.
Does it include a microphone or Bluetooth?
No. It is a wired stereo headphone without a microphone or wireless connection.
Can I replace the ear pads?
Yes. Its ear pads are replaceable.
What comes in the box?
The K612 PRO and a 3.5mm-to-6.3mm screw-on adapter are included.
Why Buy from AX Store Kuwait?
Compare open-back and closed-back monitoring at AX Store Kuwait, with exact model details and compatible desktop audio options to help you choose for your room and workflow.
Technical Specifications
| Product | |
|---|---|
| Brand | AKG |
| Model | K612 PRO |
| Manufacturer Part Number | 2458X00100 |
| Design | Open-back, over-ear |
| Driver Technology | Varimotion diaphragm; neodymium magnets |
| Colour | Black |
| Audio | |
| Frequency Response | 12Hz–39.5kHz |
| Nominal Impedance | 120 Ohm |
| Sensitivity | 101dB SPL/V @ 1kHz |
| Maximum Input Power | 200mW |
| Construction and Connections | |
| Cable | 3m, single-sided |
| Connection | 3.5mm stereo plug with 6.3mm screw-on adapter |
| Headband | Self-adjusting genuine leather |
| Ear Pads | Replaceable velour |
| Foldable | No |
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