C.E.C. HD53N Owner'S Manual Download

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Precsion Class A Headphone Amplifier

CEC Co.

,Ltd.

HD53N

53 N

LEF Headphone Amplifi

ข

ᛒ

⺑

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Accessories

8. Listening Etiquette

•

Excessive sound pressure from headphones and earphones can cause hearing

impairments. Take care not to increase the volume too much.

•

When adjusting the sound volume level, make sure you do not disturb other people and

your neighborhood.

The packaging of HD53N should contain the following:

1. HD53N unit

2. AC Power Cord

3. Owner’s manual

NOTE: Keep the packaging available for future transportation needs.

The AC power cord is for use with HD53N exclusively, and should not be

used for other devices.

Summary of Contents for HD53N

Page 1: ...Owner s Manual...

Page 2: ...o the integrated power amplifier HD53N can be the center of a very high grade music listening equipment HD53N incorporates a truly balanced circuitry and consequently offers balanced headphone operati...

Page 3: ...headphone It also automatically changes the gain for leveling XLR and RCA inputs This makes HD53N a very versatile headphone ampli er HD53N s headphone output LOW is guiding the headphone s movement...

Page 4: ...TRE 1 Read these instructions 2 Keep these instructions 3 Heed all warnings 4 Follow all instructions 5 Do not use the unit near water 6 Clean only with a dry cloth 7 Do not block any ventilation open...

Page 5: ...er supply cord or plug has been damaged in any way when liquids have been spilled onto the unit when foreign objects have fallen into the unit when the unit has been exposed to rain or moisture when t...

Page 6: ...alfunctions Locations exposed to direct sunlight such as windowsills and other exceptionally warm locations such as near heating appliances surrounding temperature higher than 35 or exceptionally cold...

Page 7: ...pairments Take care not to increase the volume too much When adjusting the sound volume level make sure you do not disturb other people and your neighborhood The packaging of HD53N should contain the...

Page 8: ...selector button to change to different input and output Note When you need to turn the power OFF and back ON again wait for least 20 seconds after turning the unit OFF to prevent malfunction Before t...

Page 9: ...high and low impedance headphones This practice was leading to some headphones being tuned to sound better with 120 Ohm Comparing and listening both outputs may be the best way to nd the output which...

Page 10: ...e maximum output power varies with the connected devices and input sources When the sound is distorted the power may exceed the maximum already In this case change the gain setting to LOW GAIN or decr...

Page 11: ...ctors Use interconnect RCA cables to connect the RCA input to external sources with RCA line output such as CD player tuner or tape deck Phono and digital sources cannot be connected to the RCA input...

Page 12: ...The red terminal is for the black one is for Speakers with 4 ohm to 8 ohm impedance can be connected by using banana plugs spades or wires Note Before connecting or disconnecting speakers turn the HD...

Page 13: ...s which could result in an overheating It is recommended to use HD53N in a low dust environment In case of overheating over approx 65 HD53N will cut off the operating power automatically In this case...

Page 14: ...icator continues blinking and the unit is not ready for use Turn HD53N off and unplug the AC power cord from the outlet Wait for a minute plug the AC power cord back in and turn HD53N on again Check a...

Page 15: ...r Gain HI LOW Selectable Input terminals 1 x balanced XLR 1 x unbalanced RCA Headphone output 1 x balanced XLR 0 Ohm Impedance 1 x 6 3mm Jack 10 Ohm for best control 1 x 6 3mm Jack 120 Ohm for sound t...

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