Published On: Thu, Aug 25th, 2016

Optoma Multi-Driver Earphone Models Feature Balanced Armature Drivers

Optoma has announced four multi-driver earphone models, namely: HEM2, HEM4, HEM6, and HEM8. All earphone monitors feature balanced armature drivers, vibration-free Lexan earpieces, acoustically calculated and hand-made premium earphone cables manufactured from optical fiber cable (OFC) copper and silver, as well as featuring a proprietary linear-phase crossover design.

HEM4 is a nice shade of blue which shifts in color to a dark purplish blue as you move it around. Also HEM4 has the leanest bass and is more upper-mid focused to your ears.

Other Specification HEM 4 Are:

  • Impedance: 38 Ohms
  • Maximum input sound level: 124dB
  • Maximum input power: 2mW
  • Frequency response: 18 – 40,000 Hz
  • Sensitivity: 124dB +/-3dB
  • Ear coupling: In-ear
  • Cable length: 4 ft (1.38 meters)
  • Jack plug: 3.5mm (4 pole-stereo)
  • Number of driver(s): 4 total
  • Weight w/ cable: 0.7oz

optoma-nuforce-hem4 and hem6

HEM6 is a classy matte black. The lightweight polycarbonate shells feel tough and are connectors are color-coded. White line and lettering for the left side and dark yellow for the right side. It is subtle yet helpful. Another subtle yet helpful enhancement is the knurled texture on the connectors, making them very easy to grip while inserting and removing the cables.

Other Specification HEM 6 Are:

  • Impedance: 37 Ohms
  • Maximum input sound level: 124dB
  • Maximum input power: 2mW
  • Frequency response: 18 – 40,000 Hz
  • Sensitivity: 113dB +/-3dB
  • Ear coupling: In-ear
  • Cable length: 4 ft (1.38 meters)
  • Jack plug: 3.5mm (4 pole-stereo)
  • Number of driver(s): 6 total
  • Weight w/ cable: 0.7oz.