Sennheiser HD 550700455 · Black · wired- Nominal impedance
- 150 ohmThis one: 120 ohm
- Weight
- 237 gThis one: 240 g
HEADPHONES
Sennheiser HD 560S
Black · wired · Sennheiser part 509144
- Acoustic design
- Open-back
- Wearing style
- Over-ear, open-back dynamic headphones
- Nominal impedance
- 120 ohm
The HD 560S (article 509144) is Sennheiser's open-back over-ear headphone with angled 120-ohm dynamic transducers, velour ear pads, a detachable cable and a 110 dB at 1 V rating, weighing 240 g without the cable; Sennheiser's own pages disagree on which end of the supplied plug and adapter pair is the plug and on the cable length.
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THE ACTUAL PRODUCT
Compare with Sennheiser HD 550
Specifications checked 26 Sept 2026Manufacturer specifications, not a hands-on test.
The nearest checked headphones by key specifications, with what differs from the Sennheiser HD 560S. The first matches the Compare button above.
Sennheiser HD 550700455 · Black · wired
Sennheiser HD 400 PRO700047 · HD 400 PRO · wired- Wearing style
- Over-ear (circumaural), open-back wired studio headphonesThis one: Over-ear, open-back dynamic headphones
- Wired / wireless connections
- Wired; detachable single-sided cable: 3 m coiled cable with 3.5 mm jack plug and a 1.8 m straight cable supplied, plus a 3.5-to-6.3 mm adapterThis one: Wired analogue; detachable cable with a 3.5 mm and 6.3 mm plug/adapter pair (which end is the plug conflicts across Sennheiser's sources)
Sennheiser HD 505700453 · Copper Edition (black with copper/bronze accents) · wired- Wearing style
- Over-ear (circumaural), open-back dynamic headphonesThis one: Over-ear, open-back dynamic headphones
- Weight
- 237 gThis one: 240 g
Key strengths
The angled (E.A.R.) transducers and open-back cups are designed to place sound in front of the listener, similar to a loudspeaker setup.
Sennheiser publishes the 120-ohm impedance, a 110 dB at 1 kHz / 1 V rating and <0.05% distortion at 90 dB SPL, which helps judge whether a phone, computer or amplifier output is sufficient.
The cable is detachable, and every official description pairs a 3.5 mm connection with a 6.3 mm one, so both portable devices and hi-fi headphone sockets are covered.
Before you buy
Sennheiser says the open-back design provides natural propagation of sound waves, but its page gives no noise-isolation or sound-leakage figure.
Sennheiser's sources disagree on whether the supplied cable ends in a 3.5 mm plug with a 6.3 mm adapter or the reverse, and the US store description gives a 3 m cable against 1.8 m elsewhere, so check the listing.
The supplied connection uses 3.5 mm and 6.3 mm audio connectors; Sennheiser’s sources disagree on the cable length and which connector is the plug or adapter.
Every specification. With its source.
Full specifications
Exact configuration: 509144 · Black · wired
16 specifications in 5 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.
Design & fit
4 items
- Acoustic design
- Open-backSource
- Wearing style
- Over-ear, open-back dynamic headphonesSource
- Weight
- 240 g
Without the cable, from Sennheiser's UK store product data ('Weight w/o cable 240 g'). The UK and US product-page tables give 280 g without stating whether the cable is included; no cable mass is inferred from the difference.
Connections & battery
4 items
- Wired / wireless connections
- Wired analogue; detachable cable with a 3.5 mm and 6.3 mm plug/adapter pair (which end is the plug conflicts across Sennheiser's sources)
See the supplied plug configuration and cable length entries for the conflicting official descriptions. The US store sells an optional 4.4 mm balanced cable listed for the HD 560 S; it is not included.
- Supplied plug configuration
- Conflicting sources
Sennheiser's UK product page (box list and feature copy) describes a 3.5 mm plug with a 3.5-to-6.3 mm screw-on adapter, while the UK store product data lists 'Jack plug 6.35 mm with 3.5 mm adapter' and both UK and US store descriptions say the cable 'features a 6.3mm plug with a flexible 3.5mm adapter'. Check the listing for the supplied plug.
- Battery life
- Not listed by the manufacturer
The reviewed exact sources do not explicitly establish battery life or that no battery is required for operation. A wired/dynamic audio path, omitted charger or Battery included N is not an explicit operating-power requirement.
Source - Cable length
- Conflicting sources
The UK and US product pages, their box lists and the UK store description give a 1.8 m (1.80 m) detachable cable, while the US store product description says 'A detachable 3 meter cable'. Check the listing for the supplied cable length.
Audio specifications
5 items
- Nominal impedance
- 120 ohm
- Rated sensitivity
- 110 dB SPL (1 kHz, 1 Vrms)
Voltage reference (dB/V), not dB/mW.
Source - Driver construction
- Dynamic transducers with polymer-blend membrane, angled (E.A.R.) alignmentSource
- Rated frequency range
- 6 Hz – 38 kHz (−10 dB)
The −10 dB limit is from Sennheiser's UK store product data; the product-page tables give 6 Hz - 38,000 Hz without a tolerance.
- Rated total harmonic distortion
- <0.05% (1 kHz / 90 dB SPL)
Rated at 1 kHz and 90 dB SPL; other models use different test levels, so compare with care.
Calls & noise control
2 items
- Active noise cancellation
- Not listed by the manufacturer
The reviewed exact sources do not explicitly establish active noise cancellation absence. Preserve separately sourced acoustic design and passive attenuation; they cannot turn omitted ANC into a false capability.
Source - Microphone
- Not listed by the manufacturer
The reviewed exact sources do not explicitly establish microphone absence. Omission from a package or technical inventory, a stereo audio connector, and a without-remote statement do not establish microphone=false.
Source
In the box
1 item
- In the box
- Headphones, 1.8 m cable with 3.5 mm plug, 3.5-to-6.3 mm adapter
The US page additionally lists a drawstring storage bag and describes the adapter as screw-on; the UK page does not list a bag. Sennheiser's store product data describes the plug the other way round (6.35 mm plug with 3.5 mm adapter).
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