Over-Ear
Harmonicdyne Eris
66Good
$250
Full review dataHarmonicdyne Eris vs Sennheiser HD 650: which should you buy?
On aggregated review scores the Sennheiser HD 650 comes out ahead with an HearWiki score of 85. The full breakdown - sub-scores, specs and what reviewers actually said - is below.
Our pick: Sennheiser HD 650 - Outstanding overall at around $380.
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.
Harmonicdyne Eris
Sound6.5
Value6.0
Sennheiser HD 650
Sound9.0
Value7.5
Specifications
| Spec | Harmonicdyne Eris | Sennheiser HD 650 |
|---|---|---|
| Type | Over-Ear | Over-Ear |
| Price (USD) | $250 | $380 |
| HearWiki score | 66 / 100 · Good | 85 / 100 · Outstanding |
| Released | 2024 | - |
| Audio | ||
| Driver | dynamic | dynamic |
| Driver size | 50 mm | 42 mm |
| Drivers per side | 1 | 2 |
| Frequency response | 10Hz-70kHz | 10Hz-41kHz |
| Impedance | 32 Ω | 300 Ω |
| Sensitivity | 118 dB/mW | 99.8 dB/mW |
| Sensitivity (dB/Vrms) | 118 | 103 |
| Wireless | ||
| Multipoint pairing | - | No |
| Features | ||
| Active noise cancelling | - | No |
| Controls | - | buttons |
| Design | ||
| Weight | 320 g | 260 g |
| Foldable | - | No |
| Detachable cable | Yes | Yes |
| USB-C | - | No |
| Balanced connection | Yes | Yes |
What reviewers said
Harmonicdyne Eris
The Harmonicdyne Eris is a bass-forward, dynamic over-ear headphone that prioritizes fun and impact over neutral accuracy. It pairs a lightweight, comfortable build with easy drivability and a wide soundstage, making it a solid pick for bass lovers seeking strong technical performance at a moderate price. However, its tuning leans heavily toward low-end emphasis and can sound muddy, with treble that may come across as sharp or spicy to some listeners.
- Pro:Very easy to drive due to high sensitivity and low impedance
- Pro:Lightweight and comfortable for extended listening sessions
- Pro:Wide soundstage with strong bass impact and good technicalities
- Con:Bass-heavy tuning can sound muddy or bloated at times
- Con:Treble response may be sharp or fatiguing for sensitive ears
- Con:Overall tonal balance is far from neutral or accurate
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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