KLING & FREITAG K&F GRAVIS 8 W - Manual (Page 17)

User's manual K&F GRAVIS 8
KLING & FREITAG GMBH © 2015 Version 2.2 Page 17 of 25
7.2 With rotated Horn
rotated horn
standing speakers
Winkel 2
W
in
k
e
l
3
Winkel 1
A smaller angle
3 results in a
smaller vertical
coverage angle
but increases the
sound power
level.
Combination Angle 1 Angle 2 Angle 3
Gravis 8W with
Gravis 8W 20° 30° 30°
Application Increasing the
horizontal
coverage angle,
e.g. for wide
audience areas Increasing the
horizontal
coverage angle
and sound
pressure level for
larger distances Increasing
the vertical
angle, e.g. for
covering balconies
8. Wiring instructions
• Before connecting your GRAVIS 8 loudspeaker switch off all equipment and turn down
all level controls.
• Only use high-quality speaker cables with a sufficient wire gauge. The wire gauge
depends on the length of the speaker cable.
Minimum Wire Gauge (mm²)
= Required Cable Length (m) / (2 x Speaker Impedance (Ohm))
• For connections to the power amplifier inputs, please use 2-pin shielded microphone
cable (balanced) with high-quality connectors.
• Avoid ground loops.
• Please pay attention to the pin assignments shown in this manual.
• Make sure that the +/- polarity of the speakers at the amplifier is correct. When
simultaneously using power amplifiers from different manufacturers, be sure to use the
correct specific pin configuration. It may be necessary to modify the pin configuration
on the power amplifiers or on the connectors leading to them.
• Upon completing the wiring, ensure that the connected speaker channels are working
in phase. To do so, use i.e. a phase checker. A phase error can also be recognized when
the connected channels are used simultaneously. During simultaneous use the bass
frequencies become notably quieter or the mid-frequencies such as voices cannot be
located.