Lejonklou Tundra Mono User manual

Technical specifications for Lejonklou Tundra Mono 2.2
Dimensions (WxHxD) 350x69x350 mm
Weight 4.4 kg
Mains input voltage (two versions) 90-132 or 187-264 VAC
Mains fuses (on both live and neutral) T3.15A
Signal input impedance 10 kΩ
Signal input maximum level 1.65 VAC and 40 mVDC
Signal gain 20.8 dB (11 times)
Output impedance/Rec. load 0.05 Ω/4–16 Ω
Output power (all ratings continuous 40 W into 8 Ω20-20k Hz
RMS at less than 0.1% THD and 57 W into 4 Ω20-20k Hz
mains voltage >103 or >207 VAC)
Output peak voltage 26 V
Frequency range (-3 dB) DC to 130 kHz
Power consumption 200 W max, 19 W idling
Warning
This appliance must be earthed. Lethal voltages inside, do not open!
No user serviceable parts inside. Refer servicing to qualified
personnel. To reduce the risk of fire or electric shock, do not expose
this appliance to rain or moisture. Never use an appliance with a
damaged power cord, as there is risk of lethal shock.
The power cord is internally colour marked as follows:
Europe/UK: Live=Brown, Neutral=Blue, Ground=Green/yellow
North America: Live=Black, Neutral=White, Ground=Green
CE Declaration of conformity:
This appliance follows the directives 73/23/EEC (LVD) and
89/336/EEC (EMC) by conforming to the following standards:
EN60065:2014 (Safety)
EN55013:2013 (Emissions)
EN55020:2007 (Immunity)
Contact information
Lejonklou HiFi AB, Skolgatan 3, 753 12 Uppsala, Sweden
Website: www.lejonklou.com, Email: [email protected]
!

PLEASE READ THIS MANUAL CAREFULLY!
Positioning
Position Tundra Mono on a flat, rigid surface with plenty of space
around it, so that air can circulate. The best sounding support we
know is the Harmoni rack. If placing Tundra Mono on a Harmoni
shelf, make sure the four rubber feet are centrally positioned on the
shelf. The feet may appear simple in construction, but are in fact
carefully chosen for optimal performance. Tighten them using your
fingers only.
Never stack units on top of each other, as the feet will leave
permanent marks on the paint of the bottom unit!
Connecting (always done when switched off !)
Connect your pre amplifier to the top (white) phono socket, labelled
LINE IN. As Tundra Mono is DC-coupled, you can only use
preamplifiers that have zero DC voltage on its output.
The input signal can be daisy chained to more power amplifiers by
using the LINE OUT phono socket (red). Please note that the
colours white and red do not correspond to left and right. These
connectors were chosen for best sound quality and the manufacturer
refused to make them in black.
Connect your loudspeaker to the speaker output, using a cable
terminated with Lejonklou 4 mm safety connectors.
Warning: Although individual banana connectors are possible to fit,
they are illegal to use in the EU for safety reasons. Use only
Lejonklou 4 mm safety connectors! For optimal sound quality, we
recommend single wire loudspeaker cable. Lejonklou offers optimal
loudspeaker cables in custom lengths, using the best parts we’re able
to find. Please contact us if you need a pair.
When all signal connections have been made, you can connect the
power cord and switch Tundra Mono on. It will reach an optimal
temperature after about 60 minutes of operation. We recommend it
to be switched off when not in use for a longer period of time. The
mains switch is located at the back, above the power cord entry.
The blue lights on the front can be turned off using the switch
labelled LIGHTS OFF. This switch affects the front lights only.
Protection – important!
Two circuits protect Tundra Mono against internal overheating:
1: If the internal heat sink reaches 70°C, the output stage will mute, to
prevent further heating. Normal operation will return once the heat
sink has cooled down sufficiently.
2: If the power supplies are heated above 50°C, they will gradually
derate their output in order not to become overheated.
Tundra Mono is also protected against continuous over current.
Tundra can, however, easily be damaged by improper use:
One way is to short the speaker output terminals while the amplifier is
in operation. Protecting Tundra Mono against a sudden short circuit
was not possible without loss of sound quality. Therefore such
protection was intentionally omitted. In addition, no such protection
circuitry is 100% effective.
Therefore: Never short the speaker outputs!
A second way to damage Tundra is to increase the input signal far
above the maximum of 1.65 VAC. Higher input levels can result in
the output stage oscillating and destroying itself.
Please note that high input levels can damage your Tundra
regardless of whether loudspeakers are connected or not!
If using a Lejonklou Sagatun or similar preamp, the maximum level
when listening to a digital source is 78 on the volume scale. That is
where Tundra starts clipping. Do not go higher that this!
Not paying attention to the above two precautions can damage
both your Tundra and the connected loudspeaker!
Lejonklou will not be held responsible for any speaker damage due to
a Tundra being short circuited or driven beyond its capabilities.
We hope you will enjoy your Tundra Mono!
If you have any questions, suggestions or encounter a problem with
it, please contact your retailer or Lejonklou directly.