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Real-Time Metering

The front panel LED SPL meters are calibrated to show actual SPLs when 
used with the LCD-4. The 75-segment LEDs display true SPLs from 90dB to 
120dB. The last red LED segment warns of SPLs greater than 120dB. You 
should NEVER see this red LED if you value your hearing! 

1.  3-Pin XLR Connectors - XLR inputs are provided for balanced devices but 

 

The King is wired for single-ended operation.

2.  RCA Connectors - Main inputs, runs parallel to the XLR connectors.

3.  Voltage Selector – Changes mains voltage from 110-120V AC to 
 

220-240V AC depending on local line voltage.

4.  Power Input – Standard three-prong IEC connector with line filter and fuse 
 

drawer. For 110V use 1.6A slow blow fuse, for 220V use 1A slow blow fuse.

Connecting the King Headphone Amplifier

Connect the left and right source component output cables to the left 
and right RCA or XLR analog inputs on the back of The King. XLR inputs 
are provided for balanced devices but The King is internally wired for 

single-ended operation and only the positive XLR input is active. The 
negative XLR input is terminated to ground through a 22k ohm resistor.
 
Connect the AC power cord, and then your headphone to the standard 
quarter-inch stereo output connector on the front panel. Be sure to keep 

the volume low on first listen.

INPUTS

INPUTS

BALANCED

UNBALANCED

110 - 120 VAC, 50-60 Hz

220 - 240 VAC, 50-60 Hz

- L -

- R -

VOLTAGE
SELECTOR

POWER

CONSUMPTION
30W MAX

MADE IN CALIFORNIA, USA

T H E   K I N G

HIGH RESOLUTION HEADPHONE AMPLIFIER

A-CLASS TUBE / MOSFET SINGLE-ENDED DESIGN

S E R I A L   N U M B E R

CAUTION

 RISK OF 

ELE

CTRIC SHOCK

NO US

E

R S

E

RVIC

E

ABL

PARTS INSID

3

4

1

2

REAR PANEL

Summary of Contents for THE KING

Page 1: ... 2016 Audeze LLC All rights reserved www audeze com ACC1018 ...

Page 2: ...T H E K I N G G U I D E ...

Page 3: ......

Page 4: ...one amplifiers that we highly recommend with all of our products especially the recently released LCD 4 Together they will bring you the best sound that Audeze has to offer To get the most out of your purchase please take the time to carefully read through this user guide and warranty THE KING HE ADPHONE AMPLIFIER ...

Page 5: ...d improves their linearity A DC servo circuit is in the loop between the input and output stage to keep DC offset as close to zero as possible typically less than 5mV Output devices are matched IRFZ20 MOSFETs chosen for their linearity and reliability A symmetrical regulated power supply delivers 16V DC to the output devices and there are no capacitors in the signal path This results in a virtuall...

Page 6: ... checked during the initial power on delay If the impedance is lower than 10 ohms the microprocessor won t activate the relay We recommend that you leave your headphone connected during power on as The King checks for potential cable shorts There are two red and green LEDs that indicate the status of the output relays on both channels During the initial power on phase the red LEDs are on and that ...

Page 7: ...ation Keep in mind that listening to music for long periods of time at excessive levels can cause irreparable damage to your ears AC Power Ensure the voltage indicated on the rear panel of The King matches your AC mains supply Attempting to use The King at any voltage other than that selected on the rear panel may cause damage not covered by the Warranty Safety Features Microprocessor controlled s...

Page 8: ...kets and replace using the cotton gloves supplied Replace the top cover reconnect the power cable and power on The heaters for both tubes are connected in series if one of them is defective the other will not function WARNING Do not use any tube types other than those indicated above Doing so will void the warranty TIP If you leave your cables connected to The King for long periods of time Audeze ...

Page 9: ...paring two headphones 2 Overload Protection A red LED indicates that an overload condition has occurred the output relay will disconnect the headphone as long as the problem persists 3 Low Impedance Short A yellow LED indicates that the connected headphone impedance is lower than 10 ohms the output relay will not activate with this load 4 LED SPL Meter Two rows of green LEDs show momentary SPL lev...

Page 10: ...LR analog inputs on the back of The King XLR inputs are provided for balanced devices but The King is internally wired for single ended operation and only the positive XLR input is active The negative XLR input is terminated to ground through a 22k ohm resistor Connect the AC power cord and then your headphone to the standard quarter inch stereo output connector on the front panel Be sure to keep ...

Page 11: ...V AC 50 60Hz 220 240V AC 50 60Hz externally switchable Fuse 1 6A slow blow for 110 120V AC 1A slow blow for 220 240V AC Power Consumption 30W maximum Weight 20lbs 9Kg Package Includes Audeze The King Headphone Amplifier User Guide and warranty Certificate of authenticity 6 ft AC power cord 1 Allen key for top cover 1 Pair of cotton gloves Unpacking Take care handling The King when unpacking and plac...

Page 12: ... after maximum 75 seconds red light should turn to green 3 If red light continues after that contact Audeze support Red LED on front 1 Reduce volume until red LED is off panel is on 2 If reducing volume doesn t help contact Audeze support Yellow LED on front This occurs only during initial power on phase if it persists switching on 1 Disconnect headphone and check the cable there might be a short ...

Page 13: ...ature power surges connections to improper voltage supply unauthorized alteration or modification of original condition damage caused by use with non Audeze products products purchased from unauthorized dealers or defects incurred during transportation for which claims must be presented to the carrier What we will do We will at our sole discretion and to the extent permitted by law repair or replac...

Page 14: ...t Product All warranty replacements are guaranteed for 90 days or until the conclusion of the Warranty Period of the original Audeze Product whichever period is greater Audeze does not provide advance replacements for Audeze Products Determining authority Audeze will be the final determining authority for all potential warranty claims for service and or replacement How to claim warranty service A I...

Page 15: ...N OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU TO THE EXTENT PERMITTED BY LAW THIS WARRANTY AND THE REMEDIES SET FORTH ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES REMEDIES AND CONDITIONS WHETHER ORAL WRITTEN STATUTORY EXPRESS OR IMPLIED AUDEZE DISCLAIMS ALL STATUTORY AND IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION WARRANTI...

Page 16: ...出SJ T 11363 2006 标准规定的限量要求 Certifications The aim of EU s Waste Electrical and Electronic Equipment WEEE directives 2002 96 EC and the RoHs directive is to reduce waste from electric and electronic products and to recycle as much of the materials as possible Any remaining waste should be virtually risk free to handle and the risk of hazardous emissions should be minimal Recycling This product must ...

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