Mark Audio ERGO 1S 121, Owner'S Manual, Page: 6 / 18

5
SUBWOOFER CONTROL PANEL – ERGO 121 STEREO
RIGHT (1) and LEFT LINK (2)
Line out to connect another Markaudio system to the principal system.
GAIN INSTRUMENT (3)
This knob regulates the gain level of the INSTRUMENT input.
INSTRUMENT CLIP (4)
This clip LED allows you to set the optimal gain level of your signal due to instrument
input.
PRESETS (5)
The selector allows you to choose between 6 different equalization settings, optimized
for the use with the different systems:
1S (1)
1S with Boost (2)
2S (3)
2S with Boost (4)
4S (5)
4S with Boost (6);
CLIP LEFT (6) and RIGHT (7)
The clip LEDs allow you to set the optimal level of the stereo signal send to the system’s
speakers. To find the optimal level back off the power amp level (MASTER) so that the
LEDs rarely turn on..
MONO/STEREO SWITCH (8)
When a stereo signal is connected to the AUX or BT Input you can send separate channels
to satellites in STEREO mode.
Otherwise you can send the same sound source to both satellites in MONO mode.
MASTER LEVEL (9)
This is the MASTER Volume level.
ON (10)
Power status indicator LED.
RIGHT (11) and LEFT (13) XLR INPUTS
XLR Balanced Inputs.
The XLR 3-pole female jack is electronically balanced (hot pole: #2). You can use
unbalanced sources only if your cables have pole 3 jumpered to pole 1.
Important: when powering up, turn on your sound source (CD player and mixer, for
example) before turning on the MarkAudio cabinets. When powering off, turn the cabinets
off first.
GROUND LIFT (12)
This switch may be needed for the cancellation of hum due to ground loops with other
apparatuses.
OFF
ON
POWER POWER
RIGHT LEFT
GND LIFT
GROUND
INPUT LEFT
XLR
INPUT RIGHT
INPUT
BT
PAIRING
INPUT
INSTR.
ON
PRESETS
4
3
2
1
5
6
MASTER
0
Max
GAIN INSTR.
0 Max
AUX
LINK RIGHT LINK LEFT
XLR
XLR XLR
CLIP LEFT CLIP RIGHT CLIP INSTR.
SUB LEVEL
0 Max
REF
1
_ERGO 1S
2
_ERGO 1S Boost
3
_ERGO 2S
4
_ERGO 2S Boost
5
_ERGO 4S
6
_ERGO 4S Boost
STEREO
MONO
1
12
11 13
2
4 6
9 5
7
8
3
10