Quick Start Guide

RNLAQuickstartV050 Page 9 of 12
www.fmraudio.com FMR Audio, [phone]
Figure 1: RNLA Front Panel Controls
# Control Description
1
Threshold — This control sets the input signal amplitude at which the RNLA will start com-
pressing. When turned counterclockwise (CCW), the RNLA will compress quieter signals.
When turned clockwise (CW), the RNLA requires hotter signals before it will begin compres-
sion.
2
Ratio — This control determines how much the RNLA will change the output signal as the
input signal changes over threshold. Turning this control CCW decreases the difference between
the compressor’s output and input signals. Turning this control CW increases the difference
between the compressor’s output and input signals.
3
Attack Time — This control sets “how fast” the RNLA will try to correct the input signal after it
rises above the threshold level. CCW decreases the RNLA’s response time, while turning this
control clockwise means the RNLA will take longer to correct the signal.
4
Release Time — This control sets “how fast” the RNLA will return to the gain setting just
before the input signal rose above the threshold level. CCW decreases the time it will take the
RNLA to return to the original gain level, while turning this control CW means the RNLA will
take longer to return to this original gain level.
5
Gain — This control was designed to “make up” average gain loss which occurs during normal
compression. However, it can also be used to match gain levels to subsequent stages, etc.
6
Gain Reduction Meter — This meter shows the current amount of “gain reduction” being
applied to the input signal. “Gain reduction” merely means “how much the signal is being
turned-down”. This meter is precisely calibrated in decibels.
0
-10
+20
+10-20
-40
0
-5
1
2
6
10
25
2468121416
-15
0
+8
+15
(dB)
Gain Reduction
ATTACK RELEASERATIO GAINTHRESHOLD
(x:1)(dBu)
F M R A u d i o
RNLA7239
-8
Log Rel Bypass
11
3
4
5
6
7
8
9
2
1
10
11
3
4
5
6
7
8
9
2
1
10
Really Nice
Levelling
Amplifier
2 3 4 51
6 7 8