Final Audio Design Sonorous IV Headphonessearch

Final Audio Design Sonorous IV Headphones

Final Audio Design Sonorous IV Headphones

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Made in Japan

With a hybrid design that merges a balanced armature with a 50-millimeter dynamic driver, the Sonorous IV closed-back headphones deliver Final Audio’s signature vast soundstage and clarity. Meanwhile, the BAM mechanism balances air pressure at the front and rear of the diaphragm for a three-dimensional sound with depth and low tones.

Note: This drop is limited to 50 units.

Final Audio Design Sonorous IV Headphones

Clear, Lifelike Sound

Developed especially for the Sonorous Series, the dynamic driver’s parts were made with increased precision in order to narrow the gap in the magnetic circuit, the pole piece, and the yoke. When coupled with a powerful neodymium magnet for high magnetic flux density, the result is amazingly clear sound.

Final Audio Design Sonorous IV Headphones
Final Audio Design Sonorous IV Headphones

Strong, Comfortable Build

The driver unit has a stainless steel housing, and features a 1.5-millimeter aluminum back plate that helps balance air pressure while suppressing unwanted vibrations. Rounding out the sturdy ABS construction, the ear pads—made with synthetic leather—create a tight seal to prevent leakage without sacrificing comfort and breathability. The detachable 5-foot cable terminates in a gold-plated monaural 3.5-millimeter plug.

Final Audio Design Sonorous IV Headphones


  • Final Audio Design
  • Over-ear, closed-back design
  • ABS construction, matte black finish
  • 50 mm dynamic driver and balanced armature driver
  • SPL: 105 dB
  • Impedance: 8 ohm
  • 5 ft (1.5 m) locking cable
  • 3.5 mm gold-plated monaural plug
  • Weight, without cable: 0.9 lb (410 g)
  • Made in Japan


All orders will be shipped by the vendor.

Estimated ship date is Dec 21, 2015 PT.

After the drop ends, payment will be collected and the group’s order will be submitted to the vendor up front, making all sales final. Check the discussion page for updates on your order.