Superlux HD688 Headphones

65.00 USD

Closed circumaural headphones with tailored ultra-high precision triple layered diaphragm.


Superlux HD688 Headphones

Superlux HD668B Headphones are equipped with tailored ultra-high precision triple-layer diaphragm in order to reproduce the natural sound with more balanced sound field and less sound coloration. You are able to catch the clear resolution of each part and open sound field especially for the elasticity and the lasting charm of the bass instrument which is perfect for pop and rock. Finish: Black.


•Closed back, circumaural, hi-fidelity.
•Tailored ultra-high precision double layers film design.
•Low distortion, keep high sound quality.
•Detachable single side design.
•40 Ω impedance to provide best use with portable device which can also be used with the high-definition headphone amplifiersystem.



  • HD688: Dynamic, Closed-back
  • Driver ø51 mm, neodymium
  • Sensitivity: HD688: 94 dB SPL (1mW) at 1KHz
  • Frequency Response 10-30,000 Hz
  • Maximum Power 200 mW
  • Rated Impedance 40 Ω (copper-coated aluminum wire)
  • Headphone Caliper Pressure 5 N
  • Cable Detachable 1-meter (3.3 ft.) & 3-meter (9.8 ft.) straight, single-sided; plugin cable on headphones (mini stereo connector)
  • Connectors Gold plated stereo mini plug
  • Net Weight (without cable) 250 g (8.8 oz)


  • FD1YW 1M straight cable
  • FD3YW 3M straight cable
  • Plug adapter 3.5 mm/6.3 mm
  • Cable Clip
  • Carrying Pouch

For more information: Superlux HD668B Headphones 

Shipping within Canada and the United States is free for orders $200.00 and over. There is a flat charge of $25.00 for all orders under $200.00. Shipping costs for international orders will be provided upon receipt of your order but prior to payment being completed. Any import duties and taxes applicable are the responsibility of the purchaser. 

Additional information


HD381B, HD381F


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