The Neumann NDH 30 was launched in 2022 and has become a reference-grade studio headphone in its price class. Neumann is widely known for its studio monitors and microphones. The brand is owned by Sennheiser, and it is very likely that Sennheiser is responsible for the headphone’s production.
The HEDD D1 was launched in late 2025 and is the first dynamic headphone from HEDD, a brand like Neumann that focuses on studio monitors and professional users. The company has previously released two headphones, the HEDDphone and the HEDDphone TWO, both featuring AMT ribbon driver designs.
The headphones are in a similar price range, though prices vary by region. In Europe, the NDH 30 is currently €545 and the D1 is €699 (including VAT). In the US, the NDH 30 is $649, while the D1 is slightly more expensive at $799 (excluding tax).
HEDD D1 SPECIFICATIONS
- Driver: Dynamic TPCD driver
- Impedance: 32 Ohms
- Sensitivity: 100 dB
- Cable: 2 m detachable
- Cable headphone connectors: dual 3.5 mm
- Cable termination: 3.5 mm jack with screw on adaptor
- Semi-circular detachable pads “lip style”
- Modular design with replaceable parts
- 5 year warranty
- Weight: 356 g (measured)
Price at launch: $799 (excl.tax), €699 (incl. VAT), and £599 (incl. VAT).
NEUMANN NDH 30 SPECIFICATIONS
- Driver: 38 mm Neodymium dynamic driver
- Impedance: 120 Ohm
- Sensitivity: 103 dB/Vrms
- Frequency range: 12 – 34,000 Hz
- Rated power handling: 200 mW
- Distortion at 1 kHz – 100 db: <0.03 %
- Replaceable fabric foam ear pads
- Single-sided, detachable cable with 4 pole 3.5 mm jack on headphone dude
- 3 m cable with standard 3.5 mm termination
- Included adapter 3.5 mm to 6.3 mm jack
- Circular detachable pads “lip style”
- Carrying bag
- Weight (without cable): 352 g
Current price and availability:
- Amazon: NDH30
BUILD AND COMFORT
Both headphones are designed for professional use, and have some similarities and some differences.
They each weigh around 350 grams and are comfortable to wear. The pads are replaceable using a lip-and-groove attachment system.
The NDH 30 is foldable, while the D1 is not. Both provide a satisfactory range of swivel movement.
Each has a detachable cable, but the connection systems differ. The NDH 30 uses a single-sided cable with a 3.5 mm four-pole locking connector, while the D1 connects to both ear cups with 3.5 mm TRS connectors, making it much easier to use third-party cables.
COMPARISONS
Associated equipment:
- Amplifier: Topping A90
- DAC: RME ADI-2 DAC FS
Jambi by Tool
The NDH 30 delivers rich, textured guitars, and vocals that stand out clearly. There is some sibilance, but it is not bothersome.
The D1 sounds a bit drier, more textured, and crisper. Vocals are even better separated and clearer, with slightly less sibilance and improved instrument separation.
Smile by Pearl Jam
The D1 offers clear sound with good instrument separation. Vocals have some sibilance, but that’s inherent to the track.
The NDH 30 is less clear in comparison, with weaker instrument separation and more pronounced sibilance.
Almost Like The Blues
The NDH 30 is well-balanced, with warm bass and full, natural vocals. The D1 sounds cleaner, with a blacker background and more detail, while maintaining a similar tonal balance.
Black Crow by Cassandra Wilson
The D1 offers excellent separation, detail, and dynamics. The NDH 30 sounds a bit more diffuse, with sharper sibilance.
Some Day My Prince Will Come by Coryell Miroslav Quartet
The NDH 30 sounds very good—well-balanced and nuanced. The D1 is similar but has a slightly cleaner presentation.
Bored by Deftones
The D1 has excellent instrument separation and a well-balanced sound with pleasant warmth and a touch of crispness. The NDH 30 is similar, but the vocals stand out a bit more in the mix, in a positive way.
As Before by Olga Konkova
The NDH 30 delivers good punch on the cajón drum, with clear, crisp piano and delicate, slightly bright vocals. The D1 has slightly less slam but is otherwise very similar. Its vocals are more articulate, with a bit more detail and a less bright treble.
It Could Be Sweet by Portishead
The NDH 30 has thicker bass, slightly darker and less pronounced mids, and sharper sibilance. Both are very enjoyable, but the D1 sounds more neutral.
Maridalen by Maridalen
The two saxophones and double bass are rendered beautifully on both headphones. The NDH 30 has a fuller bass and a generally warmer sound.
Escape Route by Boris Blank
The NDH 30 has a fairly full-sounding bass with slight rumble. The trumpet is crisp and clear, with good separation.
The D1 has tighter bass with less quantity, a smoother trumpet, and a slightly more laid-back high end.
Spontaneous Compositorius by Thomas Agergard
The D1 feels very neutral, while the NDH 30 has a slightly more laid-back saxophone and brighter percussion. Its bass is thicker and fuller.
Mahler’s Symphony No 2 III by Paavo Järvi
The kettle drums sound tighter on the D1 and fuller on the NDH 30. Otherwise, they are quite similar, offering good separation and pleasing instrument timbre.
Young Vivaldi by Modo Antiquo
Both sound very good, but the D1 feels more neutral, while the NDH 30 has a somewhat brighter presence, with more treble but a darker midrange.
Sunrise by Norah Jones
The D1 delivers richer, more present vocals, while the NDH 30 sounds slightly muffled in comparison, with a tad recessed mids and slightly boosted highs. Its bass is also fuller.
WRAPPING IT UP
Sound Signature
The sound signatures are relatively similar, and both are fairly neutral. In direct comparison, however, the D1 is more neutral, sounding flat and coherent, while the NDH 30 has slightly boosted bass and treble, with a mildly recessed mid-range.
Treble
The D1 has articulate, detailed treble that is never overly bright or piercing. The NDH 30’s treble is brighter but still maintains good detail.
Midrange
The D1 has a more upfront and present mid-range, giving it a more neutral feel. In direct comparison, the NDH 30’s mid-range feels slightly darker and a bit recessed, though the brighter treble gives an overall sense of brightness to vocals and many instruments.
Bass
The D1 has tighter, better-balanced bass, while the NDH 30 offers slightly fuller, thicker, and a bit softer sounding bass.
Soundstage and Imaging
Both have a large soundstage with good imaging, but the D1 feels more precise in direct comparison.
Detail, Dynamics, and Timbre
The overall detail level is fairly comparable, but the D1 is a step up, particularly in the bass and mids. General dynamics are similar. In terms of timbre, the D1 sounds more neutral, while the NDH 30 shows some coloration due to its very slightly V-shaped sound signature.
CONCLUSION
The Neumann NDH 30 and HEDD D1 are both excellent headphones, offering a relatively neutral sound signature, high detail, and a pleasant, natural tonality. However, when compared directly, the D1 stands out as a step up in neutrality, detail, and imaging, justifying its higher price.
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