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Sennheiser HD 400 PRO Studio Reference Headphones

Model: 700047

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Specifications

Wired Connectivity

Audio Connector to Earpiece 1 x 1/8" / 3.5 mm Male
Cable Color Black
Cable Length 9.8' / 3 m (Coiled Cable)
5.9' / 1.8 m (Straight Cable)
Audio Connector to Source 1 x 1/8" / 3.5 mm TRS Male Straight
Connector Plating Gold
Adapter (Included) 1/4" TRS
Cable Design Single-Sided

Physical

Color Black
Weight 8.5 oz / 240 g (without Cable)
Water Resistance None

Performance

Resonant Frequency None
Maximum Sound Pressure Level (SPL) 110 dB at 1 kHz / 1 Vrms
Total Harmonic Distortion (THD) 0.05%
Frequency Response 6 Hz to 38 kHz

Packaging Info

Box Dimensions (LxWxH) 10.6 x 8 x 4.4"
Package Weight 1.53 lb

Headphone

Active Noise Cancellation No
Earpiece Connection / Wearing Style Headband
Earpiece Design Over-Ear (Circumaural), Open-Back
Impedance 120 Ohms
Driver Type Dynamic
Foldable No

Environmental

Operating Temperature 5 to 131°F / -15 to 55°C
Storage Temperature -67 to 158°F / -55 to 70°C
Operating Humidity 90%
Expert Reviews
Gadgets now.35181872
1 March 2022
6.0/10

Sennheiser is one of the first names that comes to mind when talking about premium quality headphones. The German brand has made a strong presence in the professional headphones segment over the years.

  • +

    Comfortable to use., Gets multiple cables., Well-defines bass.

Headphone check.35070458
25 June 2021
8.0/10

The Sennheiser HD 400 Pro expands the professional range of the HD series with an open model. These new over-ears impressed us with an easy-going, warm sound, high wearing comfort and uncomplicated handling. However, if you are expecting a proper analytical tool, you may be disappointed.

Sound on sound.34678444
15 February 2022

German audio titans Sennheiser operate across multiple markets, and although they manufacture many headphone models that are widely used in studios, not all of these are officially ‘pro audio’ products.

Tech pp.34753549
15 December 2021
8.0/10

The Sennheiser HD 400 Pro are targeted at audio professionals and audiophiles. At Rs 15,000 ($249), they are amongst the best professional headphones that sort of money can buy.

  • +

    Remarkable clarity, Two cables, adapter in the box, Very comfortable to use, Understated, classy design

  • -

    No case in the box, Not foldable, Not everyone will like the "flat" signature

User Reviews
3 weeks ago
4.0/10

It was a good price to everywhere else, but it wasn't worth the £193 in comparison to much cheaper headphones, thats not your fault, the manufacture sells it to you dear and you add your cut.

9 October 2022
6.0/10

The headphones are great. But for $249 you would think they would come with a case to store the headphones. Even cheap Sony 7640’s come with a case to protect them. Really poor choice on Sennheiser’s part not to include that protection.

Product Highlights
  • Circumaural, Open-Back Design
  • Neutral Sound Reproduction
  • Padded Headset for Prolonged Listening
  • 6 Hz to 38 kHz Frequency Response
  • Distortion-Free Sound Reproduction
  • SPL up to 110 dB
  • 9.8' Coiled Cable with 3.5mm Plug
  • 5.9' Straight Cable with 3.5mm Plug
  • Includes 3.5mm to 1/4" Adapter
7.3/10
Average Expert Score
9.0/10
Average User Score
In The Box
  • Sennheiser HD 400 PRO Studio Reference Headphones
  • Coiled Cable
  • Straight Cable
  • 1/4" Adapter
  • Limited 2-Year Warranty
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