Over-Ear
AKG K612 Pro
Not yet scored
$249
Full review dataAKG K612 Pro vs Sennheiser HD 650: which should you buy?
Specs, scores and condensed review verdicts for the AKG K612 Pro vs Sennheiser HD 650, side by side. Where a product has no HearWiki score yet, not enough reviews have been aggregated to rate it.
Over-Ear
Sennheiser HD 650
85Outstanding
$380
Full review dataScore breakdown
Each axis is a 0–10 blend of what reviewers scored, not a lab measurement.
AKG K612 Pro
No sub-scores yet - not enough rated reviews.
Sennheiser HD 650
Sound9.0
Value7.5
Specifications
| Spec | AKG K612 Pro | Sennheiser HD 650 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $249 | $380 |
| HearWiki score | Not scored | 85 / 100 · Outstanding |
| Released | 2018 | - |
| Audio | ||
| Driver | AKG 2-mic system | dynamic |
| Driver size | 40 mm | 42 mm |
| Drivers per side | 2 | 2 |
| Frequency response | 12Hz-39.5kHz | 10Hz-41kHz |
| Impedance | 120 Ω | 300 Ω |
| Sensitivity | 92 dB/mW | 99.8 dB/mW |
| Sensitivity (dB/Vrms) | - | 103 |
| Wireless | ||
| Bluetooth | none | - |
| Multipoint pairing | No | No |
| Battery | ||
| Wireless charging | No | - |
| Features | ||
| Active noise cancelling | - | No |
| ANC type | none | - |
| Transparency mode | No | - |
| Companion app | No | - |
| Custom EQ | No | - |
| Wear detection | No | - |
| Controls | none | buttons |
| Voice assistant | none | - |
| Design | ||
| Weight | 235 g | 260 g |
| Foldable | - | No |
| Detachable cable | No | Yes |
| USB-C | No | No |
| Balanced connection | - | Yes |
| Calls | ||
| Call noise reduction | none | - |
What reviewers said
AKG K612 Pro
The Austrian K612 Pro is a wired, open-back over-ear headphone aimed at studio monitoring and detailed listening. It uses a dual-driver setup and a featherlight frame to stay comfortable during extended use, though it lacks any wireless or smart features.
- Pro:Lightweight and comfortable for long sessions
- Pro:Open-back design offers a spacious soundstage
- Pro:Dual-driver system provides accurate detail
- Con:Requires a dedicated amplifier due to high impedance
- Con:No detachable cable or controls
- Con:Lacks any wireless or ANC features
Sennheiser HD 650
The Sennheiser HD 650 is a wired, open-back dynamic headphone built for serious home listening. It delivers a natural, detailed sound with a comfortable fit, though its sub-bass rolloff and bulky design limit it to stationary use rather than portable or active scenarios. Its replaceable cable and balanced connection option add to its appeal for audiophiles.
- Pro:Excellent clarity and natural tonal balance
- Pro:Very comfortable for long listening sessions
- Pro:Detachable cable and balanced output support
- Con:Noticeable sub-bass rolloff
- Con:Not portable or suitable for active use
- Con:High impedance requires a dedicated amplifier
Summaries are AI-condensed and paraphrased from published reviews and specs - not original hands-on testing. More on our method.
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