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Ivory open-back over-ear headphones with matte finish, brown stitched headband and metallic ear cup rings

Sennheiser

Sennheiser HD 599 open-back headphone, ivory, 50 ohm, 38 mm drivers

SKU CH-7KS6-0Q5BP MPN HD 599

Open-back circumaural headphones with 38 mm drivers, 50 ohm impedance and a 12 Hz to 38.5 kHz frequency response, supplied with 3.5 mm and 6.3 mm cables plus an adaptor

  • TypeOver the Ear
  • ColorIvory
  • Driver Unit38mm
  • Frequency Response12Hz-38.5KHz
  • THD<0.1% (1kHz, 100dB SPL)
  • Input Impedance50 ohms
  • Open-back design creates natural spatial soundstage
  • 38 mm transducers with aluminium voice coils deliver low distortion
  • 50 Ω impedance works with portable and desktop sources
  • Velour ear pads and padded headband enable long listening comfort
  • Two detachable cables plus 6.3 mm adapter cover multiple connections

Audiophile open-back headphones

The Sennheiser HD 599 is an open-back, circumaural headphone built for critical listening at a desk. Its 38 mm transducers and 50 ohm impedance deliver a wide 12 Hz to 38.5 kHz frequency response with distortion below 0.1 percent. The ivory finish, brown stitching and matte metallic rings give it a distinct premium appearance.

Ideal for dedicated listening sessions

The padded headband and velour ear pads distribute weight evenly, removing pressure during long periods of music, movie or gaming use. Two detachable cables, a 3.94 ft 6.3 mm jack and a 1.2 m 3.5 mm jack plus an adaptor, cover both home audio gear and portable devices. Open-back construction leaks sound and admits outside noise, so commuters or open-plan office workers should consider closed alternatives.

50 ohm impedance drives easily from most sources

At 106 dB SPL per volt the HD 599 reaches high volume cleanly from laptop headphone outputs, phone dongles or desktop amplifiers without a dedicated high-power amp. Buyers whose equipment offers only very low-voltage outputs may find maximum loudness limited.

Highlights

  • Open-back design creates natural spatial soundstage
  • 38 mm transducers with aluminium voice coils deliver low distortion
  • 50 Ω impedance works with portable and desktop sources
  • Velour ear pads and padded headband enable long listening comfort
  • Two detachable cables plus 6.3 mm adapter cover multiple connections

Specifications

BrandSennheiser
ModelHD 599
TypeOver the Ear
ColorIvory
Driver Unit38mm
Frequency Response12Hz-38.5KHz
THD<0.1% (1kHz, 100dB SPL)
Input Impedance50 ohms
Sensitivity106dB SPL (1kHz/1Vrms)
Connector3.5mm/ 6.3mm
Ear CouplingCircumaural
Cord Length3.94 ft.
FeaturesOpen circumaural (around ear) design
Ivory Color & Matte Finish
Brown Stitches on Headband Sleeve; Matte Metallic Deco Ring on Ear cup
Powered by Sennheiser proprietary drivers, featuring a 38mm 50 ohm transducer
Soft, replaceable ear pads for enhanced comfort
Robust 3m detachable cable and 6.3mm jack
Additional 1.2m detachable cable with 3.5mm Jack
6.3mm to 3.5mm jack adaptor included
Package ContentsHD 599 headphones
3 m cable / 6.3 mm straight plug
1.2 m cable/ 3.5 mm straight plug
6.3 mm to 3.5 mm adaptor
Shipping weight0.77 kg
Package size241 × 216 × 102 mm

Questions about this item

What source device do I need to plug the 3.5 mm or 6.3 mm cable into for the HD 599 to work?

Any device with a standard 3.5 mm or 6.3 mm headphone output — phone, laptop, audio interface, or dedicated amplifier — will drive the 50 ohm, 106 dB sensitivity headphones without extra power.

Will the open-back design and 38 mm drivers leak sound if I keep using my existing closed-back headphones for tracking?

Yes, the open circumaural cups radiate sound outward, so people nearby hear what you hear; they are intended for critical listening, not isolation during recording.

How can I confirm the HD 599 is performing correctly after I connect it?

Play a familiar track and listen for clean, detailed reproduction across the 12 Hz to 38.5 kHz range with no audible distortion at normal volumes; the soft velour pads should seal comfortably around your ears.

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