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Introduction ……………………………………………………………………… 2
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Features ………………………………………………………………………… 2
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Important Safety Instructions ………………………………………………… 4
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Handling Precautions …………………………………………………………… 6
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Accessories ……………………………………………………………………… 7
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Front Panel Functions ………………………………………………………… 8
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Rear Panel Functions ………………………………………………………… 11
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Cautions regarding Handling ……………………………………………… 13
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Maintenance ………………………………………………………………… 13
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Troubleshooting ……………………………………………………………… 14
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Service Contact Preparations ……………………………………………… 14
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CE and FCC Certifi cates …………………………………………………… 15
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Specifi cations ………………………………………………………………… 16
Contents
Introduction
Thank you for purchasing HD53N.
Please read through and refer to this Owner’s manual to use your HD53N
safely and adequately. It is recommended that you keep the unit’s packaging
available for future transportation needs.
Features
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HD53N is a very high grade headphone amplifi er as well as a complete HiFi-
solution for music lovers with headphone priority. Due to the integrated power
amplifier HD53N can be the center of a very high grade music-listening-
equipment.
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HD53N incorporates a truly balanced circuitry and consequently offers
balanced headphone operation as well as a balanced speaker output.
Of course a standard unbalanced headphone terminal is also available.
Balanced operation makes the signal very clean due to independence of the
ground level. The slew-rate is twice of the unbalanced output. Regardless of
the headphone type used the improvement is easy to hear.
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The whole amplifier circuitry is using the unique LEF technology, which
offers very low distortion without the need of global feedback loops degrading
sound. LEF allows a single-ended-amplifi er design, which just works in pure
class A operation, with much higher effi ciency than a traditional design. All
outputs are directly driven by LEF amplifi er stages.
Summary of Contents for HD53N
Page 1: ...Owner s Manual...
