ENGLISH - 19
INSTALLATION
Carefully take the amplifier out of its box and remove the
packaging material as indicated. Consider that the
amplifier has a significant weight.
Once you have removed the packaging materials, place
the amplifier on a solid surface, able to resist the weight
of the amplifier and far from flammable materials.
Remove the tube protection cages by unscrewing the
knobs at the top of each cage. It is important to make
sure you remove all the protective material that covers
the tubes and that they are installed correctly. Verify
there are no residues of the packaging or protection
material before turning on the amplifier.
The I-240 must be installed on a solid and leveled
surface that prevents vibrations and allows an optimal
ventilation to dissipate the heat generated by the
operation of the equipment.
Never install the amplifier outdoors. Do not expose it to
rainfall or direct sunrays.
Make sure that the input voltage is 120 VAC +/- 10%.
The equipment can remain turned on continuously;
however, turn it off when not in use in order to prevent
premature wearing. If the amplifier is to remain turned
off for long periods of time, it is recommended to unplug
it from the electrical outlet.
CAUTION: There is HIGH VOLTAGE inside the amplifier.
Never open the amplifier since you could be exposed to
a potentially lethal voltage and it could annul the
warranty of the equipment.
CONNECTIONS AND OPERATION
Before you connect the amplifier to the AC power
source, the sources and the speakers must be
connected to the terminals on the amplifier.
The three RCA line level inputs on the I-240 are
unbalanced and identical, thus you may connect any
source indistinctly.
In case you need to connect a turntable, you will need to
use a phono preamplifier.
Ask your Margules distributor about our specialized
products for this purpose.
The equipment has gold plated copper RCA terminals to
prevent corrosion and improve conductivity, so you
should avoid forcing them.
The speakers’ connectors or binding posts are made of
pure machined copper, so you should not use any tool
to force them. Being a soft highly conductive metal,
copper provides adequate contact when lightly
tightened. These are 5-way type connectors so they may
be used with bare wire, banana plugs, spade connectors,
pin connectors or ring terminals.
We recommend the use of high-quality fully shielded
speaker and interconnect cables to avoid any noise that
may interfere with music reproduction.
Always connect the interconnect cables of the sources
respecting the following order: White for left channel
and Red for right channel, since inverting them prevents
the generation of a realistic soundstage.
In the same way, always connect the speakers
respecting the order of the channels, avoid short-
circuits and, most of all, verify there are no open circuits.
Make sure the cables make correct contact with the
terminals on the amplifier.
Before turning the amplifier on, check that the volume is
at its lowest possible level. This will prevent any
accidental damage to the speakers. Whenever possible,
turn on the sources first and then the amplifier.
The I-240 has two switches: one main switch and
another one for regular operation. The main switch is
located at the back of the amplifier and switching it on is
necessary to operate the equipment.
Once the main switch is on, you must turn on the
operation switch by turning or pressing the source
selection dial. To turn it off, you only need to press the
source selection dial again.
All the functions of the I-240 amplifier may be operated
using the supplied remote-control.
When you turn on the amplifier, both the Margules logo
and the bottom part of the dials will light up.
The amplifier has an internal clock that delays
approximately 3 minutes its powering up into operation
mode. This pre-heating time allows the formation of an
electron cloud in the (large) power tubes, which extends
their useful life.
You will know the equipment is in operation mode when
the power tube LED indicators light up. These LED lights
also work as emission indicators for the tubes, so when
a tube has low emissions or does not work properly, the
LED light turns out indicating that the tube must be
replaced.
