collapse expand iconDescription

Built by audio experts Sennheiser, the HD 400 PRO Studio Reference Headphones represent the pinnacle of comfort, accuracy and customization for the modern producer or engineer. Featuring high-performance open-back ear cups, specialized polymer diaphragms and a lightweight yet durable design, the HD 400 PRO delivers a natural, transparent listening experience for meticulous sound editing and mixing.

Open-Back Ear Cups Provide an Authentic Soundstage

The open-back ear cups of the HD 400 PRO recreate the optimal listening environment of a high-end studio control room. Their open design provides an expansive, distortion-free soundstage so you can pinpoint the position of each element in your mix with laser-focused precision.

Specialized Components Deliver Unparalleled Clarity and Depth

At the heart of the HD 400 PRO are custom-developed 120-ohm transducers utilizing a proprietary polymer blend, which yields stunning clarity, warmth and bass depth. The powerful drive magnets and innovative damping system also minimize distortion for reference-grade accuracy at any volume.

Premium Comfort for Extended Listening

To ensure comfort during marathon mixing sessions, Sennheiser equipped the HD 400 PRO with plush velour earpads, an adjustable padded headband and lightweight yet durable components. The single-sided, detachable coiled cable also provides plenty of slack so you can move freely while editing or tracking.

Flexible Connectivity and Accessories

The HD 400 PRO includes a straight cable in addition to the coiled cable for compact applications. With a 6.3mm screw-on adapter, you can connect to any device with 1/4" or 1/8" outputs. An optional accessory kit provides replacement ear pads, headband pad and connection cables to keep your HD 400 PRO performing like new for years to come.

Sennheiser HD 400 PRO Studio Reference Headphones
Sennheiser HD 400 PRO Studio Reference Headphones
Sennheiser HD 400 PRO Studio Reference Headphones

collapse expand iconFeatures

  • A professional‘s tool with neutral sound reproduction
  • Lightweight design for all-day usage
  • Single-sided, coiled cable allows freedom to operate
  • For convenience, a straight cable is also included
  • Angled transducers designed for low distortion at high SPL provide a spacious and accurate soundstage

collapse expand iconSpecs

  • Ear coupling: Circumaural
  • Operating principle: Dynamic, open
  • Primary application: Studio reference
  • Secondary application: Home use
  • Frequency response: 6Hz–38kHz
  • SPL: 110 dB
  • Noise cancelling: No
  • Weight: 0.53 lb. (without cable)
  • Cable type: Coiled and straight
  • Cable Length: 118.11" (coiled cable), 70.87" (straight cable)
  • Connector: 1/8" with 1/4" adapter
  • Built-in mic: No
  • Bluetooth connectivity: No

collapse expand iconWarranty

2 year warranty, including the Evolution wireless. Sennheiser Evolution wired mics have a 10 year warranty.