ART Pro Audio SCL2 - Dual / Stereo Compressor / Limiter Expander / Gate - Manual (Page 7)

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FIGURE 1 – Rear Panel
REAR PANEL I/O
Balanced Inputs
The SCL2™ provides both an XLR and 1/4” input jack. These jacks are balanced, but the 1/4” jack can be
used with unbalanced signals by simply plugging in an unbalanced cable.
The inputs are designed for use with line level signals ranging from –30dBm to +20dBm. While it is possible
to plug an instrument directly into the SCL2™, it is desirable to run the instrument into a preamp ahead of the
unit. This will provide a stronger signal and will keep noise to a minimum. Microphones must connect through a
microphone preamplifier (like the ART Pro MPA II) before connecting into the SCL2™.
NOTE: The SCL2™ has a passive (hardwire) bypass. This means that the bypass works even if the power is
off.
Balanced Outputs
The analog output of the SCL2™ is available on both a 1/4” TRS balanced jack and an XLR jack. This output
is impedance balanced. The output has a 100 Ohm impedance into an unbalanced load or 200 Ohms into a
balanced load.
The LED meter monitors the level present at this output. “0” on the output meter corresponds 0dBu (.775
VRMS) at the output jacks.
Detector Loop
The Detector loop is an insert point between the buffered input signal and the Detector of the compressor.
Connecting an EQ to process this signal can contour the compressor's response to perform de-essing by
boosting 5kHz-8kHz information. Connect an audio signal to the Detector Loop Input and have the SCL2™
reduce gain when a signal is present to provide Ducking (see the APPLICATIONS section for more
information).