The HE6se V2 are HIFIMAN's revised HE6se open-back planar magnetic headphones, hard to drive and meant for powerful headphone amplifiers or a speaker amplifier through HIFIMAN's HE Adapter.
Planar magnetic; 8 Hz – 65 kHz; efficiency 83.5 dB; HIFIMAN recommends a headphone amplifier supplying 2 W per channel or more, or a speaker amplifier with the HE Adapter
Battery
Listening time (maker's claim)
No battery (wired)
Design
Weight
470 g
Headphone cable
Yes
Fit and ear tips
Over-ear, open-back; padded headband in the style of the DEVA, per AudioDiscourse; bevelled clip-on ear pads
Works with
3.5 mm sockets on each cup; 1.5 m cable with 3.5 mm plug, 3.5 mm to 6.35 mm adapter and 0.5 m XLR to 6.35 mm adapter. The V2 guide's text also describes an XLR-terminated main cable, but its package list gives the cable and adapters above
In the box
Headphones, 1.5 m cable (3.5 mm plug), 3.5 mm to 6.35 mm adapter, 0.5 m XLR to 6.35 mm headphone plug adapter, ear pads (fitted)
Pros and cons
Pros
+Wide 8 Hz – 65 kHz response from a planar magnetic driver
+XLR to 6.35 mm adapter included alongside the 3.5 mm cable and 6.35 mm adapter
+Standard 3.5 mm sockets on the cups make cable changes easy
Cons
−Low 83.5 dB efficiency; HIFIMAN recommends an amplifier giving 2 watts per channel or more
