Set up and Operation
Set up of the phono amplifier
The weight of the phono amplifier «EDISON» including the granite base
is 24 kilogram. Therefore it is important to have a support of approx. 40
x 45 cm that can easily carry this weight. Please make sure that the
phono amplifier is not placed directly next to power supplies or other
amplifiers. The power supply of the phono amplifier should be placed as
far away from the «EDISON» as possible.
The base of the «EDISON» has full contact to the surface of the granite
base, this prevents vibration seeping into in the phono amplifier.
It is possible to use optional feet from other manufacturers between the
granite base and the support of the phono amplifier. It is important to
take care that optional feet are specified to carry the full weight of the
«EDISON» – approx. 24 kg –. Another option could be the use of thin
sheets (for example leather or rubber) in patches or for the full surface
between the granite base and the support.
There should be 20cm of free space above the phono amplifier to allow
the flawless function of the remote control. The IR sensor is located
right besides the gain control knob under the top glass plate.
In case there is not enough free space above the phono amplifier, it is
possible to place a small upright sheet (about the size of a business
card) behind the sensor of the remote control to allow for the reflection
of the IR impulse to the sensor.
The power supply should also be placed on a resonance free support,
for example a small granite base.
Connecting the cables
The phono inputs are located at the left and right side of the rear panel,
the XLR outputs are located at the middle of the rear panel. When
looked at from the front, the connectors at back are assigned to the
respective channel. There are three phono inputs, input 1 is directly
next to the XLR outputs and input 3 is at the outer side of the rear
panel.
The ground connection and the 6-pole connector for the cable of the
power supply are located at the middle of the rear panel. The plug of
the ground connection can be removed to allow a convenient
connection of several ground cords.
The phono inputs have RCA sockets; two inputs (input 1 and input 2)
have additional XLR inputs. The RCA sockets and the pins 2 and 3 of
the XLR sockets are connected together, while the inner pin of the RCA
is connected to pin 2 of the XLR socket.
It is possible to use the RCA connector for further loads like capacitors
or additional resistors while the XLR sockets are used for the turntable.
Please use the following sequence when connecting the phono
amplifier:
1. Connect the signal inputs (RCA or XLR) of the phono amplifier with
the turntables or tonearms,
2. Connect the ground cords next, make sure that the 4mm plug of the
ground connection is plugged into the connector at the rear panel of the
phono amplifier,
3. Connect the 6-pole plug of the power supply cable to the 6-pole
connector in the middle of the rear panel and tighten the cap nut,
4. Connect the XLR outputs to the respective inputs of the preamplifier
(in case of asymmetrical outputs the XLR-RCA adapters can be used ),
