Sennheiser HD 650

  • Specially designed acoustic silk ensures precision damping over the entire frequency range and helps to reduce THD to an incredible 0.05%
  • Improved frequency response is 10 – 39,500 Hz (-10 dB)
  • Hand-selected matched driver elements
  • High power neodymium magnets deliver maximum efficiency
  • Lightweight aluminum voice coils for very fast transient response


Sennheiser HD 650 Overview

The HD 650 from Sennheiser are reference class stereo headphones designed to deliver a true audiophile experience with open, natural sound. Specially developed acoustic silk was used to provide uniform attenuation over the entire area of each ear-cup. The lightweight aluminum voice coils ensure a remarkable transient response, while the full range drivers offer a frequency response of 10 Hz to 39.5 kHz. Great care was taken to ensure the headphones are comfortable with their elliptical design which naturally adapts to the shape of the ear.

The HD 650 utilizes a 3m detachable cable made from a highly conductive OFC copper with low handling noise and low structure-borne sound sensitivity. The headphones can be used with high output mobile devices and excel with high quality stationary hi-fi components, such as SACD, DVD-A, and CD players. The HD 650 ships with the detachable cable and 1/8″ to 1/4″ adapter.

  • Top-of-the-range open, dynamic hi-fi stereo headphones
  • Systems with narrow tolerances (± 1 dB), hand-picked in pairs
  • High-quality titanium / silver finish
  • Specially developed acoustic silk for precise, uniform attenuation over the entire area
  • Specially modulated connecting cable (detachable) made from highly conductive OFC copper, with very low handling noise
  • Extremely lightweight aluminum voice coils ensure excellent transient response
  • Comfortable to wear due to elliptical design adapted to the shape of the ears
  • Can be directly connected to stationary hi-fi components of the highest quality, in particular SACD, DVD-A and CD players

Sennheiser HD 650 Specs

Type Open-Back, Circumaural Dynamic Headphones
Transducer Principle dynamic “open-aire”
Frequency Characteristics diffuse field equalized
Frequency Range 16 Hz to 30 kHz (-3 dB)
10 Hz to 39.5 kHz (-10 dB)
Impedance 300 Ohms
Sound Pressure Level 103 dB at 1 kHz, 1 Vrms
Maximum Input Power 500 mW as per EN 60-268-7
THD ≤0.05% at 1 kHz, 100 dB
Contact Pressure Approximately: 2,5 N
Maximum Input Power 200 mW
Connectors Connector: 1/8″ / 3.5 mm
Adapter: 1/4″ / 6.35 mm
Cable Length 10′ / 3 m, Detachable, Left and Right Side Connection
Weight 9.2 oz / 260 g
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