Superlux HA3D 3-Channel Portable Headphone Amplifier

Superlux HA3D 3-Channel Portable Headphone Amplifier

Superlux HA3D 3-Channel Portable Headphone Amplifier

Superlux HA3D 3-Channel Portable Headphone Amplifier

Superlux HA3D 3-Channel Portable Headphone Amplifier

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Product Highlights

  • For Radio, TV, Film, Music Production
  • Drives Three Headphones Simultaneously
  • High Levels for Use in Loud Environments
  • Three Individual Volume Controls
  • 2 x Balanced XLR Line Inputs
  • 1/4" and 1/8" Stereo Line Inputs
  • Master Stereo/Mono Switch
  • Powered by Two AA Alkaline Batteries
  • Compact, Portable
  • Sturdy Aluminum-Alloy Housing
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  • 1Description

The portable HA3D from Superlux is a robust headphone amplifier which provides three high-performance stereo headphone feeds with individual controls, from line-level sources. It produces high headphone levels with low noise and distortion, ideal for audio professionals and musicians who need to monitor in loud environments, for applications such as radio, TV, film or music production.

The HA3D accepts two balanced XLR line-level inputs or unbalanced 1/4" and 1/8" inputs. If additional headphone outputs are needed, you can connect multiple units using the 1/4" Loop output.

The unit features a sturdy aluminum-alloy housing to withstand the rigors of field or recording studio. It can be powered by two AA alkaline batteries or with an external DC adapter (available separately).

Produces high headphone levels with low noise and distortion – can drive headphones of various impedance for monitoring in high-SPL environments
Frequency response from 10 Hz to 50 kHz, ≥ 120 dB dynamic range
Three independent headphone outputs with individual volume controls
Two balanced XLR line level inputs, unbalanced 1/4" stereo Loop/line input, and unbalanced 1/8" stereo-mini line input
Loop output lets you connect additional HA3Ds in series for extra headphone outputs
Master stereo/mono switch
Individual peak indicators show overload of each headphone feed
LED battery-life indicator
Powered by two AA alkaline batteries (operates more than 10 hours on a full charge), or with external DC adapter (available separately)
Sturdy aluminum-alloy housing with strap slots on side panels, for easy mounting or wearing
In the Box
Superlux HA3D 3-Channel Portable Headphone Amplifier
  • 1/4" TRS to 1/8" Stereo-Mini Interconnect Cable (3.28')
  • 4 x Adhesive Rubber Feet
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description
    Number of Channels 3
    Input Connections 2 x XLR-F, line level, balanced
    1 x 1/4" TRS stereo, input/line level, unbalanced
    1 x 1/8" stereo Mini, line level, unbalanced
    Output Connections 3 x 1/4" TRS stereo headphone output
    1 x 1/8" stereo-mini headphone output
    1 x 1/4" TRS stereo Loop output
    Construction Aluminum-alloy housing with protective metal end panels
    Frequency Response 10 Hz to 50 kHz, ± 1.0 dB, any input to any output, gain control set to 50%
    Voltage Gain (Gain, Loop, Headphone Output)
    Bal. Line: -3 dB, 34 dB HP Input: -1 dB, 35 dB
    Output Clipping Level +18 dBu minimum with 600 Ohms load
    +16 dBu minimum with 300 Ohms load
    Headphone Output Impedance 200 Ohms
    Input Clipping Level XLR: +24 dBu
    Dynamic Range ≥ 120 dB, balanced line inputs
    THD + Noise 0.03% maximum (from 10 Hz to 22 kHz at +10 dBu input and output level, 300 Ohms load, 10 Hz to 22 kHz filter bandwidth)
    Input Impedance XLR Balanced: 22 kOhms
    1/4" & 1/8" Unbalanced: 9.1 kOhms
    Note: Only one set of inputs (balanced or unbalanced) should be connected at a time
    Loop Output Unbalanced, 200 Ohms output impedance
    Internal Voltage Rails ± 15 V, regulated
    Power 2 x AA alkaline batteries (more than 10 hours with nominal drive levels)
    Adapter with 5 to 17 VDC output (available separately)
    Operating Temperature 32 to 160°F / 0 to 71°C
    Dimensions 1.69 x 3.70 x 5.51" / 42.93 x 93.98 x 139.95 mm
    (With foot pads)
    Weight 1.24 lb / 0.56 kg
    Packaging Info
    Package Weight 2.0 lb
    Box Dimensions (LxWxH) 9.7 x 7.2 x 3.3"

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