The connection of an amplifier to the
loudspeakers
NOTE! Always switch the amplifier off before connecting or
disconnecting loudspeaker cables.
The loudspeakers are connected to an amplifier through the
connections and speaker cables, located behind the loudspeakers.
The right loudspeaker is connected to the amplifier's right channel
(R) and the left loudspeaker is connected to the left channel (L).
Fork connectors or banana plugs can be used when connecting the
loudspeakers. The cables can also be connected to the
loudspeakers without connectors, by unpeeling the insulator of the
loudspeaker cable for about 10 mm and placing the peeled end in
the hole on the side of the connector. The connector screw is rotated
open thus that the hole alongside the connector screw becomes
visible. The cable is placed in the hole and then the screw is
tightened to an appropriate hand tightness.
A spanner may also be used for the tightening process. In this case,
note should be taken that excessive tightness is not used. The black
jack is the (-) pole and the red is the (+) pole. The (+) lead from the
loudspeaker is attached to the amplifier's (+) terminal and the (-)
lead to the (-) connector.
IMPORTANT! Make sure that the (+) and (-) connectors, leads or
their cords do not come into contact with each other, as the amplifier
may be damaged. Carefully tighten the connectors so that the
cables do not later become loose, possibly resulting in a short
circuit. Also, read the user manual for the amplifier to ensure that the
connectors to the loudspeakers have been completed correctly.
Presence- switch
The Aurelia Graphica has switches located on the rear panel, which
can be used to fine-tune the tonal balance of the speaker.
The Presence-switch affects the upper frequency range of the
loudspeakers. When the switch is in the upright position, the sound of
the loudspeaker is brighter and ”more present” than when the switch is
in the downwards position. The correct positioning for the switch is
determined according to the users' own personal preference.
The switches at the respective appropriate position have an effect on
the acoustics of the room, the used front end (amplifier, audio source,
etc.) as well as the audio recordings. For example, when using a tube
amp, a higher position may perform better, whilst a lower position,
when used with solid state amplifiers, can often prove to be a practical
decision.
The Presence switch is an excellent tool for fine-tuning the balance of
the sound, at the same time fine-tuning the placement of the
loudspeakers in the listening room.
MidBass-switch
The MidBass switch can muffle the emphasis of the upper bass area
which sometimes occurs in a listening location. In so far as when a
boom or extra “thickness” occurs in the upper bass range when the
switch is in the up position, it will be necessary to set the switch position
lower, whereupon the sound should become balanced.
The range of the MidBass switch is in and around 120 Hz.
