The Superlux HD-681 are a fantastic mix of utility and audio performance.

The housing for the headphones is adequate and pretty comfortable. It doesn't have the attention to detail of, say, some AKG K701s but they feel ok and they're robust and solid.

• Dynamic.
• Circumaural (full size)
• Semi-open.
• 50 mm Driver.
• Peak SPL: 98 dB.
• Impedance: 32 Ohm.
• Frequency Range: 10 - 30000 Hz.
• Maximum Power: 300 mW.
• NEW - Velvet ear pads

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