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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

  • Driver size38 mm
  • Frequency range12 Hz-38.5 kHz
  • Headphone style<0.1% (1 kHz, 100 dB SPL)
  • Impedance50 ohms
  • Audio sensitivity106 dB SPL (1 kHz/1Vrms)
  • Connection3.5 mm/ 6.3 mm
  • 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.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $142.99
Pricier than about 90% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand nameSennheiser
Model nameHD 599
Product typeOver the Ear
Product colorIvory
Audio & video
Driver size38 mm
Frequency range12 Hz-38.5 kHz
Headphone style<0.1% (1 kHz, 100 dB SPL)
Impedance50 ohms
Audio sensitivity106 dB SPL (1 kHz/1Vrms)
Wearing styleCircumaural
Ports & slots
Connection3.5 mm/ 6.3 mm
Size & build
Cord length3.94 ft (1.2 m)
Shipping weight0.77 kg
Package size241 × 216 × 102 mm
In the box
In the boxHD 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

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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