Lyngdorf Audio SDA-2400 User manual

Owner´s Manual SDA-2400
Version 17-08-2016

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Welcome
Congratulations on your purchase of the SDA-2400 digital stereo power amplifier.
With this purchase, you have joined the ranks of an elite group of people who believe that
perfect sound is more than a luxury. It’s a requirement. The SDA-2400 will deliver an audio
experience that will far exceed your expectations. We thank you for placing your confidence
in Lyngdorf.
For more in-depth information about the technologies used in Lyngdorf products, please
visit www.lyngdorf.com.

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What’s in the box ...................................... 4
Connection guide.................................... 10
Cleaning and maintenance ...................... 11
Technical assistance ............................... 12
Specifications ......................................... 13

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What’s in the box
SDA-2400
Mains cord Trigger cable Owner´s Manual

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Front panel
1
1. Operate indicates the operational status of the SDA-2400:
• Strong light - The SDA-2400 is operating normally.
• Flashing - The SDA-2400 is in standby mode.

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Rear panel
123 4 5 6 7 8 9 10
TRIG.
IN
TRIG.
OUT
ANALOG
UNBALANCED
ANALOG
BALANCED
L
R
Right Left
Power
state
Low power On
Input
select
Optical SPDIF
Analog balanced Analog unbalanced
OPTICALCOAXIAL
0,1ȍ
CLASS 2 WIRING
100-120V / 220-240V
50/60 Hz 145W
100-120V~/ 220-240V~

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1. Trigger in and out
In order to control the power state from another product (ex: pre-amplifiers or media players) with
trigger control, the SDA-2400 is equipped with 3.5 mm mono mini jack sockets.
• If there is a plug in the “Trigger In” socket with no voltage applied, the SDA-2400 is in standby
mode.
• If a DC voltage of 5-24V or a 50Hz AC voltage of 4-17Vrms is applied, the SDA-2400 will go into
Operate mode.
• “Trigger Out” is for daisy-chaining other SDA-2400s and controlling them all by the same signal.
Connect the control signal to “Trigger In” on the first SDA-2400 and connect its “Trigger Out” to
“Trigger In” on each subsequent unit.
•
2. Power state
As the SDA-2400 has an extremely low power consumption in standby mode, there is no on/off switch
on the front of the product. Instead, power is controlled automatically by the amplifier (this is bypassed
with use of trigger controls.)
“Low Power” means that the SDA-2400 will turn on automatically when it detects a signal on the

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selected input. If a signal is not detected for around 30 minutes, the amplifier will go into standby mode.
“On” will keep the SDA-2400 permanently turned on.
3-4. Analog unbalanced and balanced input
For connection to products with analog output, you may only connect to one input at a time. The input
sockets are internally connected in parallel, so ALWAYS use EITHER the XLR inputs OR the phono inputs.
NEVER use both at the same time.
5-6. Coaxial input and optical input
For connection to products with digital output, SPDIF and Toslink inputs are available.
7. Input select
Set the selector to the input in use.
8. Loudspeaker connectors
Connect your speakers to Left and Right connectors. The connectors allow for use of banana plugs and
bare wire up to 5mm2.
9. Voltage selector
The voltage selector must be in the correct position for your local mains supply.

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10. Mains connector and switch
Be sure that the power cord is inserted firmly in the connector. The mains switch will remove the
amplifier from your mains power.

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Connection guide
When connecting the speakers, always connect +
and - from the amplifier to the corresponding + and -
terminals on the speaker.
Warning: Never run the SDA-2400 in so-called
“bridge mode.” Bridging the speaker output terminals
will damage the amplifier.
TRIG.
IN
TRIG.
OUT
ANALOG
UNBALANCED
ANALOG
BALANCED
L
R
Right Left
Power
state
Low power On
Input
select
Optical SPDIF
Analog balanced Analog unbalanced
OPTICALCOAXIAL
Avertissement: Pour réduire le
risque d'incendie et de décharge
électrique l'appareil ne doit pas
être exposé à l'eau ou à l'humidité
Warning. To reduce the risk of fire
or electric shock, do not expose
this apparatus to rain or moisture
Audio Equipment
3YZ9 0,1ȍ
CLASS 2 WIRING
100-120V / 220-240V
50/60 Hz 145W
100-120V~/ 220-240V~

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Cleaning and maintenance
The SDA-2400 does not require any regular maintenance except to keep its exterior clean. Simply wipe
it with a clean, soft cloth. A small amount of non-abrasive cleaner on the cloth can be used to remove
any dirt or fingerprints. Do not use abrasive cleaners or cleaners containing liquid solvents.

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Technical assistance
For the latest version of this manual, please check the Lyngdorf website: www.lyngdorf.com.
If you have any questions regarding your Lyngdorf product, please contact your nearest Lyngdorf
representative or:
SL Audio A/S
Ulvevej 28
7800 Skive
Denmark
E-mail: [email protected]
Web: www.lyngdorf.com

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Specifications
AUDIO
Parameter Value Note
Coaxial (192kHz / 24 bit)
Optical (96kHz / 24 bit)
Balanced input impedance 10 KOhm AC-coupled
Unbalanced input impedance 200 KOhm AC-coupled
Max. input voltage ±15Vp AC, 0-20 VDC
Input sensitivity 2 Vrms 400 W/4 Ohms
Output power, 8 Ohms 2 x 200 W 1 kHz, 0.05% THD+N
Output power, 4 Ohms 2 x 400 W 1 kHz, 0.05% THD+N
Frequency response 0.3 Hz – 31 kHz -3 dB points, 4 Ohms load.
Frequency response -0dB/+0.3dB 20 Hz - 20 kHz, 8 Ohms load
Frequency response -0dB/+0.1dB 20 Hz – 20 kHz, 4 Ohms load

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AUDIO
Parameter Value Note
THD+N, 1 W /8 Ohms 0.004% A-wgt.
THD+N, 1 W/4 Ohms 0.006% A-wgt.
THD+N, 100 W/8 Ohms 0.02% A-wgt.
THD+N, 180 W/8 Ohms 0.05% A-wgt.
THD+N, 200 W/4 Ohms 0.02% A-wgt.
S/N ratio 117 dB A-wgt. ref 200 W/8 Ohms.
Channel separation 96 dB 1 kHz, 200 W/8 Ohms.
Peak output current ±40 A
Output common mode voltage 35 VDC 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.

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MAINS
Parameter Value Note
Power consumption <0.4 W STANDBY mode
Power consumption 26 W OPERATE mode, no output.
Power consumption 145 W 2 x 50 W/4R
Power consumption 493 W 2 x 200 W/4R
TRIGGER
Parameter Value Note
TRIGGER IN connector 3.5 mm (1/8”) mono jack Case=Gnd, Tip=Input
TRIGGER OUT connector 3.5 mm (1/8”) mono jack Case=Gnd, Tip=Output
TRIGGER IN impedance 10 Kohm
TRIGGER IN sensitivity > 2.4V DC ON
> 1.7V DC OFF
Positive DC voltage on Tip.
Max. input voltage ±25 Vp

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SIGNAL DELAY
Parameter Value Note
Digital Input 0,6 mSec
Analog Input 0,0 mSec
MECHANICAL
Parameter Value Note
Width 45 cm
Depth 36.7 cm Including loudspeaker
connectors.
Height 7.2 cm Including feet.
Weight 6.5 kg

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