Superlux HA3D - Manual (Page 3)

General Description
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.
The HA3D will provide years of superb audio performance under the most demanding field condi-
tions.
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.
Dual Power
•
Internal battery power (2 x AA) for convenient, low cost power.
• Long battery life - more than 10 hours (Alkaline batteries, @ nominal drive level).
• External 5-17VDC powering.
Flexible Inputs / outputs
•
2 balanced XLR line level inputs or unbalanced 1/4-inch and 1/8-inch stereo inputs
• Loop output to connect additional HA3D’s in series for extra headphone outputs.
Durable Mechanical construction
•
High strength aluminum chassis withstands challenging field conditions.
• Strap loops on side panels for easy mounting or wearing.
• Panel-mounted connectors for strength and reliability.
• Easy access battery compartment for quick battery changes.
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