Superlux HA3D Headphone Amplifier

PA SKU # SLX HA3D MFR # HA3D
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  • Stereo Headphone Amplifier with Three Independent Headphone Feeds

Stereo Headphone Amplifier with Three Independent Headphone Feeds

The Superlux HA3D is a portable, stereo headphone amplifier designed for demanding and critical audio monitoring. This audiophile-quality headphone amp is ideal for adding headphone feeds for portable, studio and audio enthusiast applications. The HA3D provides 3 independent headphone feeds from balanced or unbalanced line sources. Each headphone output is controlled by the associated level control, equipped with independent peak LED, and 1/4-inch output connector. With its extended bandwidth and high current/voltage drive capability the HA3D can drive headphones of various impedances to high levels with very low distortion; important for monitoring in high SPL environments. It can be powered from two-AA batteries or an external DC supply.
The HA3D provides 3 independent headphone feeds from balanced or unbalanced line sources. Each headphone output is controlled by the associated level control, equipped with independent peak LED, and 1/4-inch output connector. With its extended bandwidth and high current/voltage drive capability the HA3D can drive headphones of various impedances to high levels with very low distortion; important for monitoring in high SPL environments. It can be powered from two-AA batteries or an optional external DC supply.
  • 3 independent headphone outputs with individual volume controls
  • Frequency response from 10 Hz to 50 kHz
  • 120dB dynamic range
  • High power outputs easily drive headphones to high volume levels with very low distortion
  • Individual peak indicators show overload of each headphone feed.
  • Master Stereo / Mono switch
  • LED Battery life indicator, powered by 2 AA alkaline batteries, (10+ hours with Alkaline batteries with nominal drive levels), or an adapter with 5-17V DC output, (not supplied)
  • 2 balanced XLR line level inputs plus 1 unbalanced 1/4-inch or 1/8-inch stereo inputs
  • Loop output to connect additional HA3Ds in series for extra headphone outputs
  • Sturdy Aluminum alloy housing with strap slots on side panels for easy mounting or wearing
  • Frequency Response: 10 Hz-50 kHz, ±1.0 dB, any input to any output, gain control set to 50%
  • Voltage Gain (Gain, Loop, Out Headphone output): Bal. Line, -3dB, 34dB; HP Input, -1dB, 35dB
  • Output Clipping Level: +18dBu minimum with 600 Ω load / +16dBu minimum with 300 Ω load
  • Headphone Output impedance: 200 Ω
  • Dimensions (with foot pads): 1.69"-3.7"-5.51"
  • Weight: 1.24 pounds
  • Input Clipping Leve: l XLR: +24 dBu
  • Dynamic Range: 120 dB (Balanced line inputs)
  • THD + Noise: 0.03% maximum (from 10 Hz-22k Hz @ +10 dBu input and output level, 300 ohm load, 10 Hz-22k Hz filter bandwidth)
  • Input Impedance: XLR-Balanced - 22k ohm, 1/4" & 1/8" Unbalanced - 9.1k ohm Note: only one set of inputs (balanced or unbalanced) should be connected at a time
  • Operating Temperature: 32°-160°F
  • Internal Voltage Rails: 15V, regulated
  • Loop Output Unbalanced: 200 Ω output impedance
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