Hifiman HE-R9 Dynamic Closed-Back Headphones Version:wired It maintains a true cardioid

It maintains a true cardioid pattern throughout its frequency range

Dekoni Audio’s pads for the Sennheiser HD700 series of headphones help fill in the gap in Sennheiser’s HD700 headphones

Shure SHA900 Portable Listening Amplifier Specifications

along with a few other brands including Klipsch

Velour ear pads (sold separately)

Hifiman HE-R9 Dynamic Closed-Back Headphones Version:wired It maintains a true cardioidBest sounding Dynamic Drivers High sensitivity thanks to HIFIMAN's use of a rare earth magnet Topology diaphragm for detailed high frequency response to 35kHz Advanced voice coil HIFIMAN Topology Diaphragm The "Topology Diaphragm refers to a diaphragm featuring a special Nano particle coating applied to its surface. The result is a more natural and detailed sound than what is typically achieved in True Wireless earphones. The idea behind the new