Sennheiser HD 600508824 · grey finish · 300 ohm · standard 3 m stereo cable1 of 4 comparable key specifications are the same.
- Acoustic design
- Closed-back → Open-back
- Weight
- 345 g → 260 g
- Nominal impedance
- 80 ohm → 300 ohm
THE ACTUAL PRODUCT
HEADPHONES · LOOK CLOSER
Beyerdynamic DT 770 PRO
Classic black/grey · 80 ohm · 474746
Classic closed-back studio headphones in the 80-ohm version, with a fixed three-metre cable.
Reviewed 6 Sept 2026Manufacturer specifications, not a hands-on test.
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Sennheiser HD 600508824 · grey finish · 300 ohm · standard 3 m stereo cable
Sennheiser HD 650300 Ω · titanium-silver finish · standard 6.35 mm cable1 of 4 comparable key specifications are the same.
- Acoustic design
- Closed-back → Open-back
- Weight
- 345 g → 260 g
- Nominal impedance
- 80 ohm → 300 ohm
Sennheiser HD 660S2700240 · black with bronze accents · 300 ohm · 1.8 m balanced and unbalanced cables1 of 4 comparable key specifications are the same.
- Acoustic design
- Closed-back → Open-back
- Weight
- 345 g → 260 g
- Nominal impedance
- 80 ohm → 300 ohm
The useful part.
The included adapter supports compatible 3.5 mm and 6.35 mm headphone outputs.
The checks that matter.
The three-metre cable is fixed, so it cannot be unplugged at the earcup for storage or replacement.
NOTHING HIDDEN IN THE SMALL PRINTEvery specification.
Our publishing standard Every specification.
With its source.
- Wearing style
- Closed-back, dynamic, over-ear
Conditions & context
Manufacturer specification
- Acoustic design
- Closed-back
Conditions & context
Manufacturer specification
- Wired / wireless connections
- Wired; fixed single-sided cable, 3.5 mm stereo plug and 6.35 mm adapter
Conditions & context
Manufacturer specification
- Microphone
- No
Conditions & context
Manufacturer specification · The documented fixed three-pole stereo headphone connection carries audio output, not a microphone channel.
- Active noise cancellation
- No
Conditions & context
Manufacturer specification · Closed passive acoustic design in the manual. Its ambient attenuation claim is not active noise cancellation.
- Battery life and conditions, or not applicable
- Not required: passive wired headphones powered by the source's audio output
Conditions & context
Manufacturer specification · The manual specifies connection to a headphone socket only; no charging or battery operation.
- Weight
- 345 g
Conditions & context
Manufacturer specification · 80-ohm datasheet figure; cable inclusion is not specified. The product page instead gives 375 g including cable. This unresolved difference is not used in a weight-comparison chart.
- Nominal impedance
- 80 ohm
Conditions & context
Manufacturer specification
- Cable length
- 3 m
Conditions & context
Manufacturer specification · Straight cable on the 80-ohm model; not the 250-ohm coiled cable.
- Cable arrangement
- Fixed, single-sided straight cable
Conditions & context
Manufacturer specification
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Sennheiser HD 800 SBlack · HD 800 S · 506911Compare the two Sennheiser HD 650300 Ω · titanium-silver finish · standard 6.35 mm cableCompare the two Sennheiser HD 600508824 · grey finish · 300 ohm · standard 3 m stereo cableCompare the two Sennheiser HD 660S2700240 · black with bronze accents · 300 ohm · 1.8 m balanced and unbalanced cablesCompare the two