PLEA E READ THI MANUAL CAREFULLY!
Positioning your Tundra Mono
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 Harmonihyllan. If placing Tundra Mono on a
Harmonihyllan shelf, make sure the four rubber feet of Tundra
Mono are centrally positioned on the shelf. The feet may appear
simple in construction, but are in fact carefully chosen for
optimal performance. Tighten the feet using your fingers only.
Connecting your Tundra (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. A sudden “thud” in
the loudspeaker is normal. Tundra Mono will reach an optimal
temperature after about 60 minutes of operation. We recommend
it to be switched off if not in use for a longer period. 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.
