Field Recording & Studio
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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 external DC. Features: • 3 independent headphone outputs with individual volume controls. • Frequency response from 10 Hz to 50 kHz. • ?120dB dynamic range. • High power driving capability, drives headphones to high levels with very low distortion. • Individual peak indicators show overload of each headphone feed. • Master Stereo / Mono switch. • Powered by 2 AA alkaline batteries or adapter with 5-17V DC output • Versatile input and output connectors • Sturdy Aluminum alloy structure Specifications: 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 m inimum with 600 ? load +16dBu m inimum with 300 ? load Headphone Output impedance: 200 ? Input Clipping Level: 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) Inputs: XLR-electronically balanced, 22k ohm input impedance 1/4-inch unbalanced-9.1k ohm impedance 1/8-inch unbalanced-9.1k ohm impedance