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Sennheiser HD 650 vs Sennheiser HD 660S Comparison

Comparison and Difference Between

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Brand and Model Specifications

Information about the brand, model release date.

ModelHD 650HD 660S
Release Date???2017
What Hi-Fi? Rating - -
Amazon Rating

General Specifications

Type, design and features.

Headphone TypeOver-ear (circumaural)Over-ear (circumaural)
Earcup DesignOpen-backOpen-back
Noise OptionsNoneNone
Transducer TechnologyDynamicDynamic
Cable Length~3 m
~9.84 ft
~387.5 in
~3 m
~9.84 ft
~387.5 in
Detachable CableYesYes
Battery Life--
Battery Quick Charge--
Water ProtectionNoNo
Inputs3.5mm, 6.3 mm

Technical Specs

Tech specifications of the headphones.

Frequency Response [Hz]10 - 39,5009 – 41,500
Impedance [Ohms]300150
Maximum Input Power [mW]--
Maximum SPL103104
Distortion<0.05%< 0,04%
Driver Diameter4444.1 mm

Dimensions and Weight

Physical characteristics of the speakers (without stands).

Length~7.7 in
~195.58 mm
~19.56 cm
~7.7 in
~195.58 mm
~19.56 cm
Width~7.1 in
~180.34 mm
~18.03 cm
~7.1 in
~180.34 mm
~18.03 cm
Height~3.94 in
~100.08 mm
~10.01 cm
~3.6 in
~91.44 mm
~9.14 cm
Weight~0.575 lb
~260.82 g
~0.26 kg
~0.6 lb
~272.16 g
~0.27 kg

Packaging Info

Package dimensions and weight.

Shipping Length~12.4 in
~314.96 mm
~31.5 cm
~12.6 in
~320.04 mm
~32 cm
Shipping Width~10 in
~254 mm
~25.4 cm
~10.1 in
~180.34 mm
~18.03 cm
Shipping Height~4.4 in
~111.76 mm
~11.18 cm
~4.2 in
~106.68 mm
~10.67 cm
Shipping Weight~1.35 lb
~612.35 g
~0.61 kg
~3.4 lb
~1542.21 g
~1.54 kg

Colors and Accessories

List of available colors and optional accessories.

  • Titanium
  • Black
Replacable EarpadsYesYes
What's in the Box
  • Sennheiser HD 650
  • 3 m cable 3.5 mm
  • 1 adaptor to 1/4″ (6.3 mm)
  • User manual
  • Sennheiser HD 660 S
  • Cable with 6.35 mm Plug
  • Cable with 4.4 mm Pentaconn Plug (balanced)
  • Adapter 6.35 to 3.5 mm
  • Manual
  • Storage Box

Price and Warranty

Satisfaction is (not) guaranteed.

Warranty2 Years2 Years
Amazon Price


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