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Black over-ear headphones with leatherette pads, foldable frame, 1.2 m cable with inline mic

Superlux

Superlux HD685 headphones 40 mm driver 1.2 m cable

SKU CH-9K83-2P4W3

Foldable closed-back headphones with a 40 mm driver, 1.2 m cable, in-line mic and 102 dB sensitivity

  • Tight bass and clear mid-highs from 40 mm neodymium drivers
  • Foldable design saves space in bags and on desks
  • Two 1.2 m cables include in-line mic control and a standard lead
  • 102 dB sensitivity delivers loud output from portable sources
  • Leatherette earpads with 4.5 N headband pressure for comfortable listening

Portable audio companion

The Superlux HD685 is a pair of closed-back circumaural headphones built for listeners who want balanced sound while commuting or working in a café. A 40 mm neodymium driver delivers a frequency response of 10 to 20,000 Hz with 102 dB sensitivity at 1 kHz. The foldable frame reduces bulk in a bag, and the 68 ohm impedance suits portable sources without requiring a dedicated amplifier.

Upgrade from basic earbuds

Buyers moving up from packed-in earbuds or low-cost on-ear models gain a tighter bass foundation and a clearer mid-high presentation thanks to the dynamic driver design. The two included 1.2 m cables — one with a 3.5 mm low-profile plug and inline microphone, the other a standard stereo lead — replace the single short cord found on entry-level sets. The jump is worth it when you need both hands-free calls and a spare cable for pure music sessions.

Steady listening sessions

Rated for 200 mW maximum input power, the HD685 handles extended playlists at moderate volumes without driver strain. Leatherette earpads and a headband pressure of approximately 4.5 N maintain a consistent seal during long sittings, preserving the closed-back isolation. The circumaural cups distribute weight around the ears rather than pressing on them, so fatigue builds slowly even when the headphones stay on for hours.

Highlights

  • Tight bass and clear mid-highs from 40 mm neodymium drivers
  • Foldable design saves space in bags and on desks
  • Two 1.2 m cables include in-line mic control and a standard lead
  • 102 dB sensitivity delivers loud output from portable sources
  • Leatherette earpads with 4.5 N headband pressure for comfortable listening

Specifications

No published specifications for this item yet.

Questions about this item

What size ear cups and headband pressure do the HD685 headphones have?

The HD685 uses 40 mm neodymium drivers in a circumaural closed-back design with leatherette earpads and an approximate headband pressure of 4.5 N for a secure over-ear fit.

How do I connect the two included cables and use the in-line control?

Plug either 1.2 m cable into the 3.5 mm low-profile jack; the first cable adds an in-line remote with microphone for calls, while the second is a plain stereo cable — swap them as needed.

When should I replace the earpads or cables on the HD685?

Replace the leatherette earpads when they crack or lose seal, and swap a 1.2 m cable if the 3.5 mm connector becomes intermittent or the in-line microphone stops picking up voice clearly.

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