ART Dual Levelar Bruksanvisning

ART hi-fi system Dual Levelar

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DUAL LEVELAR
Two Channel Tube Compressor/Leveling Amplifier
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Thank you for purchasing the Dual Levelar and congratula-
tions! You now own one of the most sophisticated pieces of
audio signal processing gear available. Similar in design
philosophy to classic tube limiters, the Dual Levelar utilizes
a VCA-less design for premium, musical performance. This
design features electro-optical (Vactrol) and vacuum tube
electronics which deliver classic sound without the “old”
noise.
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Two channel tube and Vactrol-based Leveling Amplifier
Stereo linking of channels
Hand selected 12AX7 Tubes
Vactrol - Optical electronic isolators
Non-VCA design = transparent, classic sound
Balanced XLR and 1/4” TRS inputs
Balanced XLR and 1/4” TRS outputs
Limiting and Compression ratios
Auto or Fast release characteristics
Variable Threshold rotary controls
Variable Output level rotary controls
Gain reduction LED ladder
10Hz to 20kHz Frequency Response
>100dB Dynamic Range
Extremely low noise
All steel construction
Designed and manufactured in the USA
Fill in the following for your future reference:
Date of purchase: ___________________
Purchased From: ____________________
Serial Number: 256-________
This a great time to fill out the User Registration card
included with your Dual Levelar to become a completely
informed A R T Artist. Returning the card to us ensures you
of becoming the first to know about new A R T products as
well as any further developments from A R T.
256-5004-101
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unbalanced signals by simply plug
cable. The inputs are designed for
nals ranging from
-30dBm to +15dBm. While it is po
ment directly into the Dual Levela
the instrument into a preamp bef
the Dual Levelar. This will provide
will keep noise to a minimum. Mi
into a microphone preamplifier (l
before being run into the Dual Le
for use with equipment that provi
the Tube MP). Use the 1/4” input
unbalanced 1/4” applications.
XLR pin configuration: pin 1 = Gr
(hot), pin 3 = Negative (cold). Th
is: Tip = Positive (hot), Ring = Ne
Ground.
Do not use both inputs at the sam
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The outputs of the Dual Levelar ar
may use it in an unbalanced confi
the output circuitry. Use the unba
ing your signal to amps, processo
configurations. Use the XLR outpu
equipment which accepts XLR con
may be used at the same time.
**Note: If you experience a groun
both output connectors (one to th
instrument amp) simultaneously,
problem. To remedy this problem
ground wire (pin 1) from the XLR
Dual Levelar’s output. This interru
therefore breaks the loop.
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Compression is used to alter the dynamic range of a signal.
In recording and live sound situations, compression and
limiting is necessary to manage sounds with wide dynamic
ranges. Dynamic Range is measured as the difference
between the loudest and softest level of a signal. (i.e. from
a scream to a whisper). Once a signal rises above or falls
below the set threshold (selectable signal level), the com-
pressor automatically changes its gain to raise or lower the
overall signal level. Think of this as manually moving a
fader up and down to try to keep a signal at a consistent
level.
Limiting can be described as a “ceiling”. When using a lim-
iter, once the signal level reaches the threshold, it is unable
to go any louder - it is limited to a desired level.
In addition to making signal levels more manageable, it is
common practice to apply compression or limiting to a sig-
nal to make it louder or more “in-your-face”. The benefit of
using the Dual Levelar for these applications is in its
design. By utilizing opto-electronics, the Dual Levelar
allows you to add more compression without sounding like
you’re squashing the daylights out of the signal. Unlike typi-
cal compressors that use VCA’s to control level detection,
the Dual Levelar is very musical. The nature of its operation
is much like the way your eye adjusts to light. Just as your
eye transparently adjusts to changes in light, the Dual
Levelar adjusts to changes in signal level.
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It’s easy to interface the Dual Levelar with other equipment.
All connections are made at the back of the Dual Levelar.
Standard XLR and 1/4” inputs and outputs make patching
simple.
Note: for best audio quality, always use high quality cables.
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The Dual Levelar provides both an XLR and 1/4” input jack.
Both jacks are balanced. The 1/4” jack can be used with
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Produktspecifikationer

Varumärke: ART
Kategori: hi-fi system
Modell: Dual Levelar

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