Sound Devices HX-3Sound Devices HX-3
Sound Devices HX-3 Input and Output Panel

Sound Devices HX-3

The HX-3: Portable, Battery-Powered Headphone Distribution Amplifier

The compact HX-3 Headphone Distribution Amplifier is the perfect accessory to quickly provide three high-performance stereo headphone feeds with individual level controls from line-level sources. The HX-3 can produce very high headphone levels with extremely low noise and distortion.
製造商: Sound Devices



Front Panel

HX-3 Front Panel

  • Headphone level control for each output (x3)
  • Peak indicator for each headphone output
  • Stereo/Mono selection switch
  • Power LED indicates green when powered, red when batteries are low
  • Power switch selects powering source

Input Panel

HX-3 Input Panel

  • Balanced, stereo, line-level input on XLR
  • Unbalanced TRS stereo input on 1/4-inch connector
  • Unbalanced TRS stereo input on 1/8-inch connector
  • Loop output on 1/4-inch to link additional HX-3s

Output Panel

HX-3 Output Panel


  • 1/4-inch TRS stereo headphone outputs (x3)
  • 1/8-inch TRS stereo headphone output
  • Battery tube (2 x AA)
  • DC input, 5 - 18 VDC


Great for radio, television, film, and music production applications, the battery-powered HX-3 accepts balanced XLR line-level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs. Its 1/4-inch loop-out can connect multiple HX-3's for additional headphone outputs. Headphones are connected to panel-mounted 1/4-inch stereo connectors.

The HX-3 has a durable aluminum chassis to withstand the punishment of field and studio environments. The unit is powered by inexpensive batteries (two-AA) or external 5-18 VDC.

The HX-3 can add headphone outputs to the 552, 302, MixPre-D, MM-1, and USBPre-2.


l   Three isolated headphone outputs with individual volume controls.

l   125 dB dynamic range with flat frequency response.

l   Durable 1/4-inch connectors, panel mounted for strength.

l   Stereo or mono monitoring.

l   Peak LED indicates headphone overload.

l   Two balanced XLR line level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs.

l   Loop Output to connect additional HX-3's in series.

l   All-metal connectors solidly mounted to the chassis for durability and RF immunity.

l   Free from "Pin-1" grounding problems.

l   Internal battery-power for up to 18 hours from two AA alkaline batteries.

l   Chassis-isolated 5 to 18 VDC input for easy external DC powering.

l   Power LED indicates low battery power.


l   High strength, extruded aluminum chassis with protective metal end panels.



Frequency Response

l   10 Hz - 50 kHz, -±1.0 dB, any input to any output, gain controls set to 50%

Voltage Gain<


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