When working at home or in the studio, you need your mix to sound as it does when your listeners hear it. The HD 400 PRO reference headphones are your everyday tool to get the job done. Its open-back design provides a natural and accurate listening experience for fine tuning your signature sound. The core of the HD 400 PRO is the 120 ohm transducer developed by Sennheiser engineers, featuring a specialized polymer blend in its diaphragm. The drive magnet offers high power while its damping system manages ventilation — this combination yields deeper bass while mitigating the distortion that otherwise impacts clarity — a difference our professional users will appreciate. This makes the HD 400 PRO a precise monitoring tool which reveals your mix in every detail. Velour earpads and a distinct lightweight design provide the comfort you need during long sessions.
The robust housing endures every- day wear and tear regardless of your application, whether editing, mixing or mastering. A single-sided and coiled cable gives you the freedom to operate. For convenience, a straight cable is also included in the delivery. In addition, open ear cups and angled transducers allow for a wide and transparent soundstage, recreating the optimal listening position found in high-end recording studios. Artifacts of a confined space are a thing of the past. The HD 400 PRO is a true reliable companion for those who put quality and precision above all else.
Impedance: 120 Ω
Frequency response: 6 Hz to 38 kHz (-10 dB)
Sound pressure level (SPL): 110 dB (1 kHz / 1 V RMS)
THD, total harmonic distortion: < 0.05 % (1 kHz / 90 dB SPL)
Ear coupling: circumaural
Jack plug: 3.5 mm jack plug with 6.3 mm adapter
Weight: 240 g
Storage temperature: –55 °C to +70 °C (–67 °F to 158 °F)
Operating temperature: –15 °C to +55 °C (5 °F to 131 °F)
Operating relative humidity: ≤ 90 %
Accoustic principle: dynamic, open
Ear pad material: Velour
Whether you're seeking specific details about a product, or require advice on how it integrates with your existing setup, we're readily available to assist. Our team of specialists is on hand to help you make an informed decision.
If you're unable to find the information you need on our website, or wish to discuss custom solutions, please feel free to contact us. We provide consultation services designed to assist you in creating an ideal audio environment.
In addition to personalised advice, we also offer quotations for our products and services. If you're planning a project or considering a purchase and have found a better price elsewhere, let us know. We strive to offer competitive rates and will do our best to accommodate your budget. Email us your requirements and we will provide a detailed quote to help you plan your investment with clarity and confidence.
Email us now for tailored advice, bespoke quotations, and solutions that respect your budgetary considerations. sales@giraffeaudio.com
