Sennheiser HD 800 S Over Ear Open Back Headphones – Refurbished (discount at checkout)

RRP of £1,499 new and £1,125 refurbished, but Sennheiser is offering 20% off a checkout only on the manufacturer refurbished model (the new is still full price and excluded from the 20% discount deal).
Reviews:
Sennheiser HD 800 S Review – The Critical Take – Headphones.com
Sennheiser HD 800 S Headphones Review – RTINGS.com
Combining the care devoted to a handcrafted instrument and the precision of modern manufacturing, the HD 800 S lets you explore your entire music collection from the inside out.
Features
Sennheiser signature sound for a natural spatial listening experience with minimal resonance
56mm Ring Radiator dynamic transducer for a natural balanced sound
Vibration dampening chassis limits vibrations to provide stability for audio reproduction
Acoustic absorber system to reduce frequency masking
Luxurious comfort from the microfiber ear and headband padding
Specially tuned symmetrical cable with gold plated 4.4mm (balanced) and 6.35mm (unbalanced) jack plugs
Reference class open-back design for a spacious soundstage
40mm voice coil for crisp clean audio
Inert headband damping element reduces vibrations through the headband
Ultra-ergonomic design with an adjustable metal headband and dual-axis articulating earcups
Premium materials with matte black metal components provide a sleek modern aesthetic
Expert craftsmanship developed in Germany and precision-built at our state-of-the-art Ireland plant