[Minstrel59]

Which closed back headphones (less than £300) give:

Transparency
Resolution
Soft treble
Minimum fatigue
'Warm and cuddly' sound as opposed to 'harsh and spiky'!

Thank you

 

[SteveHiFi]

The Sennheiser Urbanite XL are very smooth and comfy - at £200 you could definitely say warm and cuddly.
 
Also the Pioneer SE-MX9 are on the warm side but there might be a tad more brightness there.