Klark Teknik U.S.A. Air Compressor DN540 Manual Do Utilizador
Chapter 1: Introduction
DN540
2
Operator Manual
The presence control progressively reduces compression in the 5kHz region.
Attenuation depth and input level meters are provided, plus a switch that changes the
output level meter to monitor the input signals.
output level meter to monitor the input signals.
A external sidechain input on the rear panel is switchable via the front panel.
Applications
The DN540 provides a quality, cost effective and compact compressor unit presented in
a traditional 1U quad channel format. This makes it ideally suited to applications where
space is limited or when there is no need for eight channels.
a traditional 1U quad channel format. This makes it ideally suited to applications where
space is limited or when there is no need for eight channels.
The default compressor mode (manual) is ideal for creative compression, whereby the
manual envelope controls for attack and release can be adjusted as necessary. This
mode provides a semi-linear type of compression, which is suited to percussive
instruments (especially thickening drums) and difficult instruments, or for more
advanced effects where the added manual control gives vastly superior results, as
compared to auto mode.
manual envelope controls for attack and release can be adjusted as necessary. This
mode provides a semi-linear type of compression, which is suited to percussive
instruments (especially thickening drums) and difficult instruments, or for more
advanced effects where the added manual control gives vastly superior results, as
compared to auto mode.
The auto compressor mode (with the pushbutton AUTO on) provides a
root-mean-square (RMS) type of compression. This mode is easy to use because the
envelope time constants (attack and release) are automatically adjusted, taking into
account threshold and ratio settings relative to signal levels and transients. This makes
the DN540 ideal for the novice user or for situations where there is not enough time to
set up the envelope manually.
root-mean-square (RMS) type of compression. This mode is easy to use because the
envelope time constants (attack and release) are automatically adjusted, taking into
account threshold and ratio settings relative to signal levels and transients. This makes
the DN540 ideal for the novice user or for situations where there is not enough time to
set up the envelope manually.
The presence control will be especially useful on vocals to eliminate pumping effects
caused by, for example, cymbal spill — because singers typically stand with their
microphones (mics) pointing directly at the drum riser — and to add air to the sound
without introducing noise.
caused by, for example, cymbal spill — because singers typically stand with their
microphones (mics) pointing directly at the drum riser — and to add air to the sound
without introducing noise.
The DN540 has been primarily designed for the following main application areas:
• Touring live sound In applications where analogue consoles are still required due
to their ease of use. Here the DN540 can be used for channel inserts on drums, bass
guitars and other instruments. The compressor can be used to control both the
dynamic range and to generate musical effects. The presence control reduces
pumping on vocals and also increases brightness to a desired level without
increasing the risk of squealing if mics are held too close to monitor speakers.
guitars and other instruments. The compressor can be used to control both the
dynamic range and to generate musical effects. The presence control reduces
pumping on vocals and also increases brightness to a desired level without
increasing the risk of squealing if mics are held too close to monitor speakers.
• Theatre live sound Theatres can make use of the compressor in the same way as
touring live sound, for vocals and orchestra, but in this case they can probably make
more use of the compressor’s more transparent linear style. The presence masking
is useful, increasing vocal brightness without bringing up the noise floor, which may
be quite poor due to the use of radio mics and mic placement limitations.
more use of the compressor’s more transparent linear style. The presence masking
is useful, increasing vocal brightness without bringing up the noise floor, which may
be quite poor due to the use of radio mics and mic placement limitations.
• Corporate live event As above, transparent control and effects can be used on
channel inserts.