Shanling's planarmagnetic – It's the HW600 [€1'100] whose 110x86cm 0.8µm thin polymer film with serpentine silver-plated aluminium traces is powered by a total of 14 dual-sided magnets for 1.8T of magnetic field strength in the wide air gap. A 2 x 3.5mm detachable 4.4mm terminated cable is standard. Impedance is 30Ω, claimed sensitivity 104dB. Weight is a substantial 480g. Finish is black as shown.