The AKG K812 ranks #35 out of 165 total Over-Ear Headphones for sound quality. See all Headphones rankings for every top pick.
Brand: AKG
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#35 AKG K812: $1,999.00 B&H Photo Video eBay
Pros: 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. Sub-bass holds within 6 dB of target down to 20 Hz and the 60 to 200 Hz bass band runs about 1 dB above target, giving full, extended lows for an open design. The 36 ohm impedance means it does not need a high-voltage amp, and it rates level with the HIFIMAN HE6 and above the HIFIMAN HE1000se.
Cons: 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. The open back leaks sound and blocks no outside noise, and the Sennheiser HD 800 S rates a little higher for less money.
| Released | Oct 2013 (13 years ago) |
|---|---|
| Back | Open |
| Built-in Microphone | No |
| Connection | Wired |
| Deviation From Target | 2.20 dB standard deviation |
| Driver Type | Dynamic |
| Drivers | 1 x 53mm dynamic |
| Form Factor | Over-ear |
| Frequency Response | 5Hz - 54kHz (Manufacturer specified) |
| Harman Preference Score | 85 (measured by oratory1990, via AutoEQ) |
| Impedance | 36 ohms |
| Sensitivity | 110 dB SPL/V |
| Sub-bass Extension | Within 6 dB of target down to 20 Hz (-4.7 dB at 30 Hz) |
| Tonal Tilt | -0.11 (negative is warmer, positive brighter) |
| Weight | 0.9 lbs (390 g) |
EQ preset to match the Harman target
Set a preamp of -4.9 dB, then add these filters in any parametric equalizer (Wavelet, Equalizer APO, Peace, or a player with parametric EQ). Calculated by AutoEQ from its measured frequency response.
| Filter | Frequency | Gain | Q |
|---|---|---|---|
| Low shelf | 105 Hz | +6.5 dB | 0.70 |
| Peak | 89 Hz | -3.3 dB | 0.25 |
| Peak | 2,233 Hz | +4.4 dB | 0.94 |
| Peak | 5,780 Hz | -6.7 dB | 5.69 |
| Peak | 3,821 Hz | -4.5 dB | 5.90 |
| High shelf | 10,000 Hz | -2.5 dB | 0.70 |
| Peak | 118 Hz | +0.3 dB | 1.60 |
| Peak | 217 Hz | -0.4 dB | 2.69 |
| Peak | 6,875 Hz | +1.4 dB | 6.00 |
| Peak | 55 Hz | -0.2 dB | 1.40 |
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