Lyngdorf Audio Stereo Amplifier MkIV User Manual

Millennium MkIV  
True Digital Amplifier  
Owners Manual  
- 1 -  
 
WARNINGS  
CAUTION  
RISK OF ELECTRICAL  
SHOCK. DO NOT OPEN  
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK,  
DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS  
INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.  
TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.  
Explanation of graphical symbols  
Exclamation symbol  
The exclamation point within an equilateral triangle is intended to alert the user  
to the presence of important operating and maintenance (servicing) instructions  
in the literature accompanying the product.  
Lightning symbol  
The lightning with arrowhead symbol within an equilateral triangle is intended to  
alert the user to the presence of uninsulated “Dangerous Voltage” within the  
products’ enclosure that may be of sufficient magnitude to constitute a risk of  
electrical shock to a person.  
- 3 -  
 
Important safety instructions  
1:Read these instructions carefully before installing or operating this apparatus.  
2:Keep these instructions.  
3:Heed all warnings.  
4:Follow all instructions.  
5:Do not use this apparatus near water.  
6:Clean only with a dry cloth.  
7:Do not block any ventilation openings. Install in accordance with the manufacturer’s  
instructions.  
8:Do not install near any heat sources such as radiators, heat registers, stoves, or other  
apparatus that produce heat.  
9:Do not defeat the safety purpose of the grounding-type plug. A grounding-type plug has  
two pins and a third grounding prong. The third prong is provided for your safety. If the  
provided plug does not fit into your outlet, consult an electrician for replacement of the  
obsolete outlet.  
10:Protect the power cord from being walked on or pinched, particularly at plugs,  
convenience receptacles, and the point where they exit from the apparatus. Do not use  
this unit with a damaged cord or plug.  
11:Only use attachments and accessories specified by the manufacturer.  
12:Use only with cart, stand, bracket, or table specified by the manufacturer, or sold with the  
apparatus. When a cart is used, use caution when moving the cart/apparatus  
combination to avoid injury from tipping over.  
13:Unplug this apparatus during lightning storms or when unused for long periods of time.  
14:Connect only to the proper mains voltage.  
15:To completely disconnect this apparatus from the AC Mains, disconnect the power  
supply cord plug from the AC receptacle.  
16:Do not connect any output from the amplifier to any other amplifier's output or any other  
voltage source.  
17:Do not expose this apparatus to dripping or splashing and ensure that no objects filled  
with liquids, such as vases, are placed on the apparatus.  
18:To avoid electrical shock, make sure that no conductive part of the loudspeaker wiring is  
exposed while the amplifier is operating. Do not connect loudspeakers with uninsulated  
terminals to the amplifier.  
19:Refer all servicing to qualified service personnel. Servicing is required when the  
apparatus has been damaged in any way, such as when the power-supply cord or plug  
are damaged, liquid has been spilled or objects have fallen into the apparatus, the  
apparatus has been exposed to rain or moisture, does not operate normally or has been  
dropped.  
- 4 -  
 
Unpacking and placement of the Millennium  
The Lyngdorf Millennium is heavy and has no built in handles. Unpacking it can be a little  
bit tricky. To prevent back or toe injuries, we strongly recommend you get someone to help  
you when it's time to lift the amplifier out of the box. Or open the box, fold out the carton  
flaps, without removing any packaging material, carefully turn the box upside down and  
simply remove the box from the amplifier.  
When you have carefully removed the unit and accessory kit from the carton, visually  
check for shipping damage. Contact both the shipper and Lyngdorf Audio immediately if  
the unit bears any sign of damage from mishandling. All Lyngdorf Audio equipment is  
carefully inspected before leaving our factory.  
KEEP SHIPPING CARTON AND PACKING MATERIALS for future use or in the  
unlikely event that the unit needs servicing. If this unit is shipped without the  
original packing, damage could occur and void the warranty.  
Place the Lyngdorf Millennium near the digital sources, thus keeping interconnects  
reasonably short. The Millennium may be placed on a shelf or in a cabinet where it's easy  
to operate.  
Note that adequate clearance for the AC cord, speaker cables and interconnects must be  
left behind the Millennium. Due to the Millennium's high efficiency, it won't get very warm  
even after hours of operation. This will give you great flexibility in terms of placement. Just  
make sure that the ventilation slots at the upper section of the back panel are not covered.  
- 5 -  
 
Accessories  
You should find the following in the accessory kit:  
1. One mains cord  
2. This manual  
3. Customer registration form  
4. Remote control  
5. RS232 Cable for firmware upgrade from a PC  
6. Programming cable  
Operating voltage  
The Millennium is available in a version for 115V mains voltage and in a version for 230V  
mains voltage.  
Check the label on the Millennium rear panel and verify you have the version with the  
proper voltage for your geographical area.  
The 115V version requires a mains voltage of 100V-120V at 50-60Hz with a current rating  
of 8A.  
The 230V version requires a mains voltage of 200V-240V at 50-60Hz with a current rating  
of 4A.  
The mains voltage setting for your Millennium can be changed ONLY BY A QUALIFIED  
ENGINEER.  
WARNING: Connect the power input only to the AC source printed on the  
label. The warranty will not cover any damage caused by connecting to the  
wrong type of AC mains.  
The Millennium has three power modes:  
1. OFF – No circuitry is powered.  
2. STANDBY – The mains transformer and amplifier section is powered off, only the  
remote control input and the microprocessor is powered, so the unit can be  
powered up using the remote control “STANDBY” button  
3. ON – All circuits active  
Product Registration  
Please record the serial number of your amplifier here for future reference. The serial  
number is printed on the label on the Millennium rear panel. You will need this serial  
number, should you ever require service for your Millennium power amplifier.  
Millennium MkIV serial number: _____________________  
- 6 -  
 
Introduction  
Lyngdorf Millennium is the world's first true-digital power amplifier where digital audio data  
is converted directly into sound without analog amplification or conventional low-level D/A  
conversion involved at any step.  
The core technology is based on patented EQUlBlT™ processing and output modules.  
The Lyngdorf Millennium is a modular design, a platform for state-of-the-art music  
reproduction. This means that you can add functions or upgrade the performance, as the  
technology becomes available. This manual will expand together with your Millennium. If  
you take the time to register your investment, we guarantee that you will get information  
about future upgrades and expansions.  
Features:  
Hardware:  
Clocking of the PWM modulator is running in master mode at increased sampling  
frequency which insures optimal performance in the audio band compared to other  
implementations  
Ultra low phase noise / low jitter clock system extends the dynamic range and gives  
extremely low jitter  
All digital signals on the PCB are noise optimized regarding transmission line load  
to reduce interference to clock systems.  
Built in Audio DSP’s for Equalizers, crossovers delays etc.  
New Digital transceiver supporting 192kHz single wire interface  
New Asyncronous Sample Rate Converter with internal conversion rate always  
clear of 1:1 conversion problems.  
Optimized low jitter clock system  
PC interface for programming, control and upgrades  
High-end Balanced DAC line out for active system setup  
Performance:  
THD+N level -107dB A-weighted both channels driven at -60dB@1kHz  
THD+N level -104dB with both channels driven at -60dB@1kHz  
THD+N < 0.01% @1kHz 10W in 8 Ohms (<0.02% from 1-150W)  
THD+N < 0.015% @100W from 20-20 kHz  
Dynamic range 107dB digital plus 26 dB PSU variation - totals 133 dB  
DAC line out Dynamic range 116dB A-weighted  
DAC line out SN+THD ratio -105dB @ FS -1dB Output Both channels driven @  
1kHz  
DAC linearity 20-20kHz +/-0.02dB  
ASRC THD+N -140dB (20Hz-Fs/2) Dynamic range 144 dB  
Software:  
PC Interface for control of all built in functions, remote accessible via RS232  
interface. Firmware upgradable from PC, DSP control software.  
8 Presets with full storage of all filter parameters for A/B testing, different seating,  
music modes etc.  
20 band Parametric Equalizer and delays up to 7 meters per channel.  
- 7 -  
 
Quick set-up  
A. Connect your speaker cables to the terminals on the back panel. The speaker  
impedance should be 4-16 Ohms. If the speakers can be bi-wired, use both sets of  
terminals. Make sure that the red (+) terminal gets connected with the corresponding  
positive (+) terminal on your speaker. European versions of the Millennium will not accept  
banana plugs. Do not attempt to remove the plastic safety plugs, use spades or simply  
bare wires.  
B. Connect your CD/DVD/MD/DAT player to one of the digital inputs or an analog source  
to the A.l.M. Turn on the power to your source.  
C. Turn on the Millennium with the power button (1).  
D. Press the analog or digital (2/4) input selector once. The Millennium will now boot up  
and you must select the input where you connected the source. If the Equibit logo is  
flashing, press the input selectors 2 or 4 to find the right source. When the Millennium  
detects a signal, the logo will stop flashing.  
E. Adjust the volume with the wheel (3) to a moderate level.  
F. Activate your digital or analog source and adjust the volume.  
If you experience any problems during this procedure, please refer to the following  
pages for a more detailed explanation of the set-up.  
- 8 -  
 
Front panel  
Fig 1: Millennium front panel.  
Controls  
The buttons/controls on the front panel of the Millennium can all be used either with direct  
presses on the front or by operating the similar keys on the included remote control. All  
keys on the front except from the Mains switch (1) can be found on the remote control as  
well.  
(1) Mains switch. Powers the Millennium on/off. Standby mode is selected with the remote  
control only.  
(2) Analog input selector. The analog input selector is only active when the optional  
Lyngdorf Analog lnput Module is connected to the Millennium.  
(3) Volume control wheel & display*  
(4) Digital Input selector  
Changes to Digital input, or if already selected, cycles to the next Digital input.  
The wheel (3)*  
5) Lyngdorf logo & Standby indicator  
6) Analog input indicator  
7) Digital input indicator  
8) Equibit logo & input lock indicator  
9) Digital input indicator  
- 9 -  
 
Adjusting the volume  
The volume can be adjusted by turning the big wheel or pressing volume up/down on the  
remote control. The volume level is displayed in decibels (dB where 99.9dB is the  
maximum setting giving full power for a full-scale input from a digital source. Note that no  
clipping is possible. Some recordings may be recorded at a lower level that doesn't make  
use of the full16 bit dynamic range of the CD. The Millennium will not deliver full power  
with such records. The volume is adjusted in approx. 500 uniform steps of 0.1dB. The  
value displayed is always rounded to 0.1dB resolution. However not all 3-digit volume  
levels can be set, the value will increase with either 0.1dB or 0.2dB according to the  
rounding number.  
Pre-set Volume  
When the Millennium is turned on, the volume is set to a pre-programmed value. This level  
can easily be changed; adjust the volume to the desired level, press the A and D buttons  
Simultaneously for 2 seconds. The display will confirm the setting by flashing the volume  
and the amplifier automatically enters standby mode.  
Maximum output level  
The volume control with its low-friction, high precision ball bearings can easily spin up to  
full output. To prevent damage to your speakers, a maximum volume level can easily be  
programmed, you can find out how to do this in the section “Remote Control”.  
Power  
At a first glance, the operation of this very accurate dB scaled volume control may come  
as a bit of a surprise. Normal operation will be at levels that seem to be very close to the  
maximum power of the amplifier.  
The dB’s scale is not linear  
Volume level Corresponds to (at BA)  
99.9dB………150 W  
96.9dB………..75 W  
92.9dB………..30 W  
89.9dB………..15 W  
82.9dB…………3 W  
79.9dB………..1.5W  
Keep in mind that the dB scale is not linear, a 10dB increase corresponds to 10 times the  
power level and a 3dB increase equals 2 times the power.  
Set the dimmer display light control  
When the Millennium is in operational mode (ON), three levels of display-light settings are  
possible. The DIM function on the remote control (explained later) toggles between:  
A. Maximum light  
B. Dimmed  
C. Dimmed and volume display/input indicators off  
Regardless of this setting, any change in display information activates maximum light for  
two seconds.  
- 10 -  
 
Polarity  
You can switch the polarity 180 degrees with the remote control (explained later). The  
display confirms the polarity with either "pos" or "neg".  
Mute  
When "Mute" is activated from the remote control the display shows "---" and the amp will  
be muted. Press the "Mute" button again to deactivate the mute status. If the volume is  
changed when Millennium is muted, the display will show the volume for 3 seconds.  
Advanced Set-up  
Check the mains voltage!  
Attempting to operate the Millennium at an incorrect voltage can damage the unit! Power  
is supplied via the lEC-connector on the back panel. Neither the voltage nor the line  
frequency setting may be changed by the user. Make sure that the label on the rear panel  
of the Millennium indicates the correct AC operating voltage for your country.  
When the power switch (1) is pressed - the standby circuitry, which controls the mains  
relay will be activated. The amplifier will start in standby mode indicated by the red  
Lyngdorf logo. After a few seconds, the amplifier can be switched into operational mode by  
pressing any of the two input selector (2 or 4) buttons or using the power button on the  
remote control. In operational mode, the display located in the wheel will be visible to bring  
the amp back to standby mode, press the power button on the remote or press the input  
selector buttons simultaneously for 2 seconds. This will also default the volume setting  
(See section on volume control).  
- 11 -  
 
Rear panel  
Fig 2: Millennium rear panel.  
Do not cover or obstruct the ventilation slots on the rear panel.  
1) Speaker terminals  
2) AD Converter Input  
3) D4 Input AES EBU  
4) IEC Mains power connector  
5) Digital Outputs D AES EBU  
6) Digital Output D  
7) RS 232 Input and Output  
8) Speaker terminals  
9) Digital Input D1  
10) Digital Input D2  
11) Digital Input D3A SPDIF  
12) Digital Input D3B Optical  
13) Analog Output R  
14) Analog Output L  
There are 4 digital inputs on the back panel corresponding to the 4 input indicators at the  
right hand section of the display:  
DI - RCA input  
D2 - RCA input  
D3A - Digital Input D3A SPDIF  
D4B - Digital Input D3B Optical  
The D (4) button on the front panel and on the remote control is used to toggle between  
the inputs.  
- 12 -  
 
Clock Gate  
A proprietary 5-pole XLR input is provided for a clock synchronised CD-transport, where  
the reference clock is controlled by the Millennium. This feature is called Clock Gate.  
When a compatible device is connected to the 5-pole connector (2) position D4 selects the  
Clock Gate input as a source.  
(This means that a Clock Gate source will override the AES/EBU input.)  
Digital Output  
The selected analog or digital input source is relayed to the digital output. Use the output  
for recording CD’s etc.  
Analog Inputs  
One of the two 5-pole XLRs is dedicated for the optional Analog Input Module A.l.M.,  
which will be clock synchronised and powered by the Millennium. When the A.l.M. is  
connected, one of four analog inputs can be selected by toggling through input Al to 44.  
When the A.l.M. is not present, the AI indicator will flash and the Millennium returns to the  
previous digital input.  
Address setting for network operation  
When used in a network in connection with either a RCS/TCS or another Millennium it is  
essential to set both the communication speed and address correctly. The address usage  
in a network is restricted by the following rules:  
Address  
0
1
2-..  
Functionality  
Reserved  
Master  
Comment  
Normally not used  
Master, TCS, RCS  
Slave  
Slave  
If more than one amplifier is present in the network different addresses must be appointed  
to each amplifier by the Millennium software.  
The INPUT/AUX connectors on the back panel are used for connectivity over standard  
RJ12 cables in a suitable length. For Slave amplifiers the input is used to pass information  
from the Master or a RCS/TCS to the amplifier. For Master amplifiers the broadcast  
information will be passed to the slave on the AUX connector which also passes any input  
information in a daisy chain to the next Lyngdorf product.  
- 13 -  
 
Remote Control  
The remote control is used to access the Millennium and  
replicate some of the buttons directly accessible on the front  
panel. The four buttons used for selecting which device to  
control are described below. To control the Millennium the  
AMP key should be pressed.  
Amp – Selects the remote for operation with Millennium  
or any Lyngdorf amplifier.  
RCS –No function.  
CD - Selects the remote for operation with a Lyngdorf  
CD Player.  
Tuner – No function.  
Standby – The standby button toggles the Millennium  
between active “On” and standby mode.  
Digital – Changes to Digital input, or if already  
selected, cycles to the next Digital input.  
Analog – Changes to Analog input, or if already  
selected, cycles to the next Analog input.  
Button 1-8 – Preset 1-7 can be selected with buttons 1-  
7, default presets are all linear bypass, and preset  
selection of the active preset will only affect the sound  
after changing the preset contents with the DSP  
software. Button 8 selects bypass.  
UP/DOWN and Channel +/- – Cycles in either Analog  
or Digital input.  
Volume Up/down – Changes volume in the chosen  
direction  
Mute – Toggles Mute function on/off  
Some special functions can be controlled by pressing Info first followed by a numeric key:  
Info+1 – Shows the software version in the display.  
Info+2 – Show the device address in the display.  
Info+3 – Increments device address by one and shows the new address.  
Info+4 – Decrements device address by one and shows the new address.  
Info+5 – Toggles Master/Slave. The display shows -r- for master and -c- for slave.  
Info+6 – Change display light dimmer.  
Info+7 – Toggles baud rate 9600/57600. The display shows either “960“or “576”.  
Info+8 – Changes polarity pos/neg. The display shows -P- for pos. and -n- for neg.  
Info+9 – Stores actual volume as maximum volume level. The display shows either  
“on” or “OFF”  
The Millennium can act as Master in a set-up with more than one Millennium amplifier. In  
this case the remote control is active on the Master Millennium, and disabled on the Slave  
Millennium which is operated via the broadcast codes. All information on usage is passed  
on to the slave i.e. on/off, volume, mute, preset.  
- 14 -  
 
Front panel operations  
The operations of the remote control receiver can be bypassed on the front panel for the  
Millennium. Bypassing the remote control is done with a long press on the Analog left  
selection key “A”. When the remote is turned off the Lyngdorf Logo blinks twice after a 2  
sec. press. If the remote functionality is turned on – the Lyngdorf Logo blinks once.  
Software  
Software and documentation, for both PC and Millennium, can be downloaded from our  
homepage at http://www.lyngdorf.com.  
The software for PC is:  
Serial Load – used for upgrading the software in Millennium  
AmpCom – used for controlling and setting up Millennium from a PC.  
LYNGDORF DSP – used for making digital filters, crossover and voicing in  
Millennium.  
These 3 programs come in a zip file called “PC Pack x.x.zip” where x.x is the version  
number. In this file are a “setup.exe” and a text file with a release description.  
Software or firmware for Millennium comes in a separate file called “Millennium release  
xx.zip” where xx is the version number. In this file are a “releasexx.s19” and a text file with  
a release description.  
- 15 -  
 
Connectors  
Mains Connector  
Mains voltage to the Millennium is applied via an IEC320 type connector. The supplied  
cable with safety ground should be used to connect the Millennium to a mains outlet.  
WARNING: Connect the power input only to the AC source printed on the  
label. The warranty will not cover any damage caused by connecting to the  
wrong type of AC mains.  
WARNING: Always disconnect the Millennium from the mains before  
changing any connections to its inputs or outputs.  
Loudspeaker connectors  
The Millennium’s loudspeaker connectors accept bare wire ends up to 5 mm in diameter.  
Connect the wires from each loudspeaker to each channel's + and – terminals. Do not  
make any other connections to the output terminals. The loudspeaker cable is inserted into  
the slot in the loudspeaker terminal, and the terminal is tightened firmly.  
WARNING: Always disconnect the Millennium from the mains before  
changing any connections to its inputs or outputs.  
WARNING: Make sure that no conductive part of the speaker wiring is  
accessible. Do not connect loudspeakers with uninsulated terminals.  
When the Millennium is operating, there is up to 35V DC on its output terminals with  
reference to ground.  
Do not connect the output from the amplifier to any other amplifier's output  
or any other voltage source. Do not attempt to operate the amplifier in  
bridged mono mode.  
Cleaning and maintenance  
Always unplug the unit from the electrical outlet before cleaning.  
This unit does not require any regular maintenance except to keep its exterior clean.  
Simply wipe its exterior with a clean soft cloth. A small amount of non-abrasive cleaner  
may be used on the cloth to remove any excessive dirt or fingerprints. Do not use abrasive  
cleaners or cleaners containing liquid solvents.  
- 16 -  
 
Technical specifications  
Audio  
Parameter  
Balanced input connectors  
Value  
3 pin XLR, gold-plated.  
Note  
Case=Gnd, Pin1=Gnd,  
Pin2=Hot(+), Pin3=Cold(-)  
AC-coupled.  
Balanced input impedance  
10kOhm  
Unbalanced input connectors RCA (phono) jack, gold-plated. Case=Gnd, Tip=Hot(+)  
Unbalanced input impedance 10kOhm  
AC-coupled  
DAC Out impedance  
75 Ohm  
Gain According to volume  
control setting. 89 dB = 0 dB  
with sensitivity normal and rel.  
volume 0 dB  
Input sensitivity  
Power Supply Variation  
Output connectors  
4.4V (2.2V with high sens.) 200W/8ohms/89 dB Volume  
26dB 65V to 3.3V dep. On Volume  
4 insulated binding posts, gold-Will accept bare wire ends of  
plated.  
2*200W  
2*375W  
4 Ohms-8 Ohms  
up to 5 mm diameter.  
1KHz, 0.1% THD+N  
1KHz, 0.1% THD+N  
It is safe to operate the  
amplifier with no load.  
-3dB points, 8ohms load.  
20Hz-20KHz, 8ohms load  
20Hz-20KHz, 4ohms load  
20Hz-1KHz  
20KHz  
A-wgt.  
A-wgt.  
A-wgt.  
Output power, 8ohms  
Output power, 4ohms  
Nominal load impedance  
Frequency response  
Frequency response  
Frequency response  
Output impedance  
Output impedance  
THD+N, 1W/8ohms  
THD+N, 1W/4ohms  
THD+N, 100W/8ohms  
THD+N, 180W/8ohms  
THD+N, 375W/4ohms  
S/N ratio  
0.3Hz-33KHz  
-0dB/+0.2dB  
-0.2dB/+0dB  
0.035 Ohms  
0.4 Ohms  
0.015%  
0.02%  
0.008%  
0.01%  
0.07%  
A-wgt.  
A-wgt.  
107dB  
133 dB  
A-wgt. Ref. 200W/8ohms.  
A-wgt. Ref. 200W/8ohms.  
1KHz, 200W/8ohms.  
Dynamic range  
Channel separation  
Peak output current  
Output common mode voltage Max 33V DC  
90dB  
40A  
Ref. Ground. The amplifier can  
not be used in bridged mono  
mode.  
Output DC voltage  
5 mV  
All audio measurements, except frequency response, are measured with a 20KHz low-  
pass filter in accordance with AES-17.  
- 17 -  
 
Protection  
Parameter  
Grounding  
Value  
Note  
Mains earth, chassis and audio  
ground are connected  
internally.  
Output short circuit current  
Output DC voltage  
Over temperature  
40A  
5V @ <0.1Hz  
All heat sinks and mains-  
transformer.  
Auto resetting thermal fuse in  
mains transformer.  
Mains  
Parameter  
Value  
Note  
Mains input connector  
Mains voltage range  
Mains voltage range  
Internal mains fuse  
Internal mains fuse  
Power consumption  
Power consumption  
Power consumption  
Power consumption  
IEC 320 cold type  
100-120V AC, 50–60Hz  
200-240V AC, 50-60Hz  
8 Amp / 0.25A  
4 Amp / 0.1A  
1.5 W  
35 W  
116 W  
820 W  
Mains lead supplied.  
115V version  
230V version  
115V version  
230V version  
STANDBY mode.  
OPERATE mode, no output.  
2*37.5W/4ohms.  
2*300W/4ohms.  
Trigger  
Parameter  
TRIGGER OUT connector  
TRIGGER OUT Voltage  
Value  
3.5mm (1/8") mono jack  
12V DC  
Note  
Case=Gnd, Tip=Input  
Short circuit protected  
Mechanical  
Parameter  
Width  
Depth  
Value  
450mm (17.72")  
435mm (13.39")  
Note  
Excluding loudspeaker  
connectors (over wheel)  
Including loudspeaker  
connectors (over wheel.  
Excluding feet.  
Depth  
455mm (14.21")  
Height  
Height  
Net weight  
Shipping weight  
88.8mm (3.5")  
100.6mm (3.96")  
18.0Kg (37lb.)  
20.0Kg (41lb.)  
Including feet.  
- 18 -  
 
Trouble Shooting  
Protection Mode  
A sophisticated monitoring circuit controls the operation of the amplifier. When an error is  
detected, the amplifier shuts down into protection mode immediately and indicates the  
status by flashing the Lyngdorf logo.  
Protection mode can be triggered by:  
1. Overload/short-circuit of the speaker outputs (limits current to approx. 35 Amps)  
2. DC defected at the speaker outputs; this can be due to extreme program material.  
3. Internal power failure burned fuses etc.  
4. Mains supply voltage is too low or too high.  
5. Overheating of the amplifier.  
Most problems are temporary  
Most of the above mentioned error conditions are normally temporary. When the  
Millennium goes into protection mode, switch off the power and inspect the amplifier.  
Check the speaker cables, feel if the cover is very hot. Turn on the amplifier again to see if  
normal operation mode may be resumed.  
If the error condition persists, the Millennium will return to protection mode immediately. If  
this is the case, the Millennium needs authorised service.  
NOTE:  
No bridge coupling is possible.  
The frequency response of the Millennium extends down to DC. Playback of material  
with extreme infrasonic program material may cause the amp to go into protection  
mode in order to protect the speakers.  
Future upgrades & features  
The Lyngdorf Millennium is a modular design, a platform for state-of-the-art music  
reproduction. This means that you can add functions like an analog input Module, a Clock  
Gate controlled DVD-player or simply upgrade to future Audio Formats.  
That’s the beauty of the Lyngdorf Millennium concept; whatever the future standards will  
be, you will easily be able to implement them in your system for a reasonable cost.  
This manual will expand together with your Millennium. If you take the time to register your  
investment, we guarantee that you will get information about future upgrades and  
expansions when they become available.  
- 19 -  
 
Support  
Please check www.lyngdorf.com under “Support” for latest version of control software,  
and newest version of this document.  
Technical assistance  
If you have any problems with or questions regarding your Lyngdorf Audio product, please  
contact your nearest Lyngdorf Audio representative or:  
Lyngdorf Audio  
Væselvej 114  
7800 Skive  
Denmark  
 

Land Pride Spreader 322 215M User Manual
LG Electronics Cell Phone BL20 User Manual
LG Electronics Computer Monitor L1740P User Manual
Lincoln Electric Welder 4R220 User Manual
Linksys Switch SR2024C User Manual
Logitech Video Game Keyboard G19s User Manual
Makita Saw 4340CT User Manual
Matsushita Laptop CF W4GWCZZ User Manual
Maverick Ventures Thermostat Remote Thermometer User Manual
Meridian America Stereo Amplifier Meridian 505 User Manual