Short answer: the AKG K812. It ranks #62 of 481 over-ear headphones by sound quality, rated 4.1/5, at $1,999; the HEDD Heddphone 2 GT ranks #107, rated 4.0/5, and costs $2,199, so there is little reason to consider the other one.
The case for the AKG K812: In oratory1990’s measurement it earns a preference score of 85 with only a 2.2 dB deviation from target, so the overall balance sits close to what most listeners prefer. Watch for: A 6.9 dB peak near 5.8 kHz adds an edge to vocals, cymbals and sibilance on bright recordings, while a 3.8 dB dip near 2.3 kHz pulls the upper mids back slightly.
Why pick the HEDD Heddphone 2 GT: A full-range Air Motion Transformer open-back that measures very close to the Harman target (score 82 across four measurements), with full sub-bass to 20 Hz. The tradeoff: Heavy at 1.2 lbs (550 g), and its low 88 dB/mW sensitivity needs a strong desktop amplifier.
Buy the AKG K812. It is rated higher for sound quality than the HEDD Heddphone 2 GT and costs less, which makes it the one to get unless you need something the other one does better.
Looking for alternatives? See the complete Headphones rankings.
In oratory1990’s measurement it earns a preference score of 85 with only a 2.2 dB deviation from target, so the overall balance sits close to what most listeners prefer.
B&H Photo Video $1,999.00 eBay
A full-range Air Motion Transformer open-back that measures very close to the Harman target (score 82 across four measurements), with full sub-bass to 20 Hz.
HEDD $2,199.00 eBayPrices on this page were last checked October 16, 2026 at 5:46 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| AKG K812 | HEDD Heddphone 2 GT | |
|---|---|---|
| Price | $1,999.00 | $2,199.00 |
| Ranked | #62 of 481 in Over-Ear Headphones | #107 of 481 in Over-Ear Headphones |
| Form Factor | Over-ear | Over-ear |
| Harman Preference Score | 85 (measured by oratory1990, via AutoEQ) | 82 (median of 4 squig.link measurements, calibrated to AutoEQ) |
| Deviation From Target | 2.20 dB standard deviation | 2.07 dB standard deviation |
| Tonal Tilt | -0.11 (negative is warmer, positive brighter) | -0.29 (negative is warmer, positive brighter) |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.7 dB at 30 Hz) | Within 6 dB of target down to 20 Hz (-3.1 dB at 30 Hz) |
| Connection | Wired | Wired |
| Back | Open | Open |
| Driver Type | Dynamic | Air Motion Transformer |
| Drivers | 1 x 53mm dynamic | Full-range AMT with VVT |
| Impedance | 36 ohms | 41 ohms |
| Sensitivity | 110 dB SPL/V | 88 dB SPL/mW |
| Weight | 0.9 lbs (390 g) | 1.2 lbs (550 g) |
| Frequency Response | 5Hz - 54kHz (Manufacturer specified) | 10Hz - 40kHz |
| Built-in Microphone | No | - |
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