Key Features

Open, Dynamic, Circumaural Design
Audiophile Sound Reproduction
Frequency Response: 10 Hz to 39.5 kHz
Acoustic Silk Attenuation
Highly Conductive OFC Copper Cable
Lightweight Aluminum Voice Coils
Elliptical Shaped Ear Cups for Comfort
Works with Portable Audio Devices
Compatible with SACD, DVD-A & CD Players
Includes 1/4" to 3.5mm Adapter

The HD 650 from Sennheiser are reference-class stereo headphones designed to deliver a true audiophile experience with an 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 9.8' 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 a 1/4" to 3.5mm 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

Superb driver design delivers high-definition sound

The HD 650's drivers are hand-picked to ensure precise left/right matching, and have lightweight aluminum voice coils for superb accuracy and fast transient response. You'll experience wide, open sound with extended bass that complements everything from sweeping orchestral arrangements to high-impact movie soundtracks. The metal mesh on the back of the earcups leave them open to prevent unwanted vibrations from tainting the sound. The Kevlar-reinforced, oxygen-free copper cord ensures a clean signal transfer, and ends in a full-sized headphone jack — perfect for high-end audio components.

High-quality craftsmanship

The elliptically shaped earpads fit over the ear, and block out ambient noise so you can focus better on your music. The luxuriously padded headband and earcups makes these 'phones ideal for long hours of comfortable music listening. And they sport a titanium and silver finish that's stylish as well as durable.

SPECIFICATIONS

Wearing Style	Dual Ear with Headband Foldable: No Earpiece Swivel: No
Earpiece Design	Over-Ear (Circumaural)
Open/Closed-Back	Open-Back
Sound Field	Stereo
Driver Type	Dynamic
Driver Size	1.7" / 42 mm
Impedance	300 Ohms
Active Noise Cancellation	No
Frequency Response	10 Hz to 39 kHz
Maximum Sound Pressure Level (SPL)	103 dB at 1 kHz / 1 Vrms
Maximum Power Handling	500 mW
Built-In Controls	No
Built-In Mic	No
Audio Connector	1x 1/4" TRS
Included Adapter	1/8" / 3.5 mm TRS
Cable Design	Detachable / Straight
Cable Length	9.8' / 3 m
Color	Gray
Environmental Resistance	No
Box Dimensions (LxWxH)	12.7 x 10.15 x 4.35"
Weight	9.2 oz / 260 g (without Cable)
Package Weight	1.35 lb

Sennheiser HD 650 Stereo Reference Headphones