I love the fact these can be used without an amp though I now use one the majority of time and how comfortable they are.
Official homepage: https://www.sennheiser-hearing.com/en-AU/p/hd-599/
RTings.com review: https://www.rtings.com/headphones/reviews/sennheiser/hd-599
Description:
- Premium around ear, audiophile grade open back headphones
 - Proprietary Sennheiser 38 millimetres, 50 ohm transducers deliver exceptional clarity, detail and dynamics
 - Angled transducers inside the ear cups channel sound directly into your ears improving special realism
 - Supreme comfort with padded headband and luxurious Extra Large ear pads allow for long listening sessions
 - Suitable for home or mobile use with two cables included 3 meters detachable cable with 6. 3 millimetres jack and 1. 2 meters detachable cable with 3. 5 millimetres jack.
 - Wide frequency response: 12 to 38,500 Hertz
 
![[Prime] Sennheiser Open Back Headphones HD 599 Special Edition, Black $120 Delivered @ Amazon AU](https://files.ozbargain.com.au/n/08/915308.jpg?h=9b781478)


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