Hifiman Arya Organic wins on value and driveability with its 16 Ohm impedance and 2023-05 release versus the HD 800 S 2016 model at higher $1699 MSRP. The Arya provides planar magnetic advantages in frequency extension to 65kHz while the HD 800 S excels in known soundstage width from its 56mm Ring Radiator. No ASR measurements are cited for either as none are provided in grounded facts.