Superlux HD-668 B

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Superlux HD-668 B

Superlux

HD-668 B

4.4 Expert Rating

Product Info

Article Number: 240342
Brand: Superlux
Model: HD-668 B
Price: $31.90

* Prices may vary. Check retailer for current pricing and availability.

These Superlux HD-668 Bs are a remarkable value – seriously impressive detail for the money. They're perfect for budget-conscious producers, audio students, or anyone needing a neutral reference for critical listening. Just be aware they're not a bass-heavy experience, and the open design isn’t for silent environments.

Product Description

  • Superlux HD-668 B
  • Studio Headphones
  • Circumaural
  • Semi-open
  • Dynamic
  • Self-adjusting headband for comfort
  • Peak SPL: 98 dB
  • Impedance 56 Ohm
  • Frequency range: 10 - 30
  • 000 Hz
  • Power capacity: 300 mW
  • Detachable cable
  • 1 m and 3 m cables with 3.5 mm stereo jack
  • Weight with cable: 251 g
  • Weight without cable: 228 g
  • Includes: 6.3 mm stereo jack and bag adaptor
PROS
  • • Excellent detail retrieval for the price point, revealing subtle nuances.
  • • Surprisingly wide soundstage for a closed-back design, creating a more immersive experience.
  • • Comfortable for extended listening sessions thanks to the self-adjusting headband.
  • • Detachable cable system allows for easy replacement and longer cable options.
CONS
  • • Build quality feels plasticky, especially around the headband adjustment.
  • • Semi-open design leaks sound, not ideal for quiet environments.
  • • Bass response can be a little thin and lacks significant impact.

Product Video

Key Features

Type Semi-open Dynamic
Driver Size 50 mm
Impedance 56 Ohm
Frequency Range 10 - 30000 Hz
Sensitivity 98 dB
Cable Detachable, 1m & 3m with 3.5mm jack
Weight 251 g (with cable)

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Frequently Asked Questions

They offer a relatively flat frequency response, making them decent for reference, but professional mixing often benefits from more expensive, higher-resolution headphones.
The HD-668 B offers a wider soundstage, while the DT 770 Pro provides a more powerful bass response and a more robust build quality – they cater to different priorities.
Yes, the 56 Ohm impedance is manageable for most smartphones, but you’ll get better performance with a dedicated headphone amplifier.

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