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Sound Devices HX-3 Headphone Amplifier

With $75 Purchase »
Your Price: $455.00
List Price: $455.00

Availability: Usually Ships In 7 - 14 days

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Sales SKU: SOUHX3
Product Code: HX-3

The compact Sound Devices HX-3 Headphone 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.

Great for radio, television, film, and music production applications, the battery-powered HX-3 headphone amplifier 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.

Sound Devices HX-3 Headphone Amplifier - Features:

  • Three isolated headphone outputs with individual volume controls
  • 125 dB dynamic range with flat frequency response
  • Durable 1/4-inch connectors, panel mounted for strength
  • Stereo or mono monitoring
  • Peak LED indicates headphone overload
  • Two balanced XLR line level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs
  • Loop Output to connect additional HX-3's in series
  • All-metal connectors solidly mounted to the chassis for durability and RF immunity
  • Free from "Pin-1" grounding problems
  • Internal battery-power for up to 18 hours from two AA alkaline batteries
  • Chassis-isolated 5 to 18 VDC input for easy external DC powering
  • Power LED indicates low battery power
  • High strength, extruded aluminum chassis with protective metal end panels

 

  • Frequency Response: 10 Hz - 50 kHz, -±1.0 dB, any input to any output, gain controls set to 50%
  • Voltage Gain: 34 dB from balanced line to headphone output, 35 dB from headphone input to headphone output
  • Output Clipping Level: +18 dBu minimum with 600 ohm load, +16 dBu minimum with 300 ohm load
  • Headphone Output Impedance: 200 ohms
  • Input Clipping Level:
    • XLR: +24 dBu minimum
    • 1/4-inch and 1/8-inch inputs: +22 dBu minimum
  • Dynamic Range: 120 dB minimum
  • THD + Noise: 0.03% maximum (from 10 Hz to 22 kHz @ +10 dBu input and output level, 300 ohm load, 10 Hz - 22 kHz filter bandwidth)
  • Inputs:
    • XLR electronically balanced: 22k ohm input impedance
    • 1/4-inch unbalanced: 9.1k ohm impedance
    • 1/8-inch unbalanced: 9.1k ohm impedance
  • Internal Voltage Rails: ± 15 V, regulated
  • Power Source:
    • Internal: 2 AA alkaline batteries, 18 hours life typical with nominal levels
    • External: 5 - 17 VDC via threaded coaxial connector (5.5 mm outer diameter, 2.1 mm inner diameter), pin positive, sleeve negative
  • Power LED: Green indicates power and good battery. Red indicates power with low batteries. LED turns red when ~ 4 hours of battery life remain.
  • Included Accessories: 1/4-inch to 1/8-inch trs interconnect cable, rubber feet (4), locking DC jack
  • Operating Temperature Range: 32° to 160°F | -0°C to 70°C
  • Dimensions (H x W x D): 1.7 x 3.7 x 5.5 in | 43 x 94 x 140 mm
  • Weight: 1.24 lbs | .56 kg (unit only)

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