-5-
The Gain control adjusts either the microphone pre-amp gain (+6
dB to +72 dB), or the Line amp gain [-3 dB to +63 dB], depending
on the selected input source.
Following the pre-amplifier is a switched 12 dB/oct, 75 Hz High
Pass Filter (HPF) to reduce unwanted LF such as Microphone
Rumble, AC noise etc.
The Polarity Switch (ø) inverts the polarity of the rear XLR Mic
Amp (180° Phase Shift).
A five segment LED meter shows the output signal level in dBu.
SiX
SiX
CH
COMP
CMP
IN
THRESHOLD
dB
-20
+10
EQ
BELL
LF
dB
+
–
0
BELL
EQ
IN
HF
dB
+
–
0
Hi-Z
[LINE]
48V
21
9
0
12
24
ø
INPUT
GAIN
dB
72
[63]
[-3]
6
1
2
3
4
Mic Input (Rear XLR connector)
The default microphone input uses SSL’s
SuperAnalogue design and includes
individually switched 48V phantom power.
The Mic (XLR) input’s nominal impedance
is 1.2 kΩ. The rear 500 Series enclosure
XLR is the default input.
Line Input (Front Panel TRS)
The input source can be switched to the
front panel ¼” TRS jack line input by
pressing the ‘[Line]’ switch on the
channel.
The nominal Line Input impedance is 10
kΩ. This can be changed to 1 MΩ using
the Hi-Z switch. The 1MΩ impedance
makes this input suitable for very high
impedance sources such as passive guitar
pickups without the need for an external
DI box.
5
2
3
6
4
1
