Samson L2400 User Manual

11

Used to engage the Low Pass Filter and turn the 

MONO output into a subwoofer output.
59 - FREQUENCY – control knob

The L Series mixers have an onboard Low Pass Filter 

to make it simple to connect a subwoofer. Use the 

FREQUENCY control to adjust the crossover point 

for the Low Pass Filter in a range of 20 Hz to 200 Hz. 

The FREQUENCY control knob is active when the 

SUBWOOFER ON/OFF switch is set to ON.
60 - AFL - switch

The MONO output’s AFL, or After Fader Listen switch 

allows you to listen to, or “solo”, the MONO signal 

in the headphones. When the MONO AFL switch 

is pressed down, the left/right mix will be heard in 

headphones plugged in to the PHONES connector 

located in the front panel jack field. Since the signal 

is sent after the MONO level fader, you hear the 

signal with the added gain from the MONO Level 

control.
61 - MONO - fader control 

The MONO level fader control is used to adjust the 

volume of the signal connected to the MONO/SUB 

output. 

The L Series mixers provide a second set of output 

connectors carrying a duplicate of the MAIN MIX 

signal for the purpose of feeding another speaker 

zone or recorder. The MAIN MIX B control knob is 

used to set the volume of the MAIN Mix B output.
63 - AFL  (MAIN MIX) – switch

The MAIN MIX output’s AFL, or After Fader Listen 

switch allows you to listen to, or “solo”, the MAIN MIX 

in the headphones. When the MAIN MIX AFL switch 

is pressed down, the left/right mix will be heard in 

headphones plugged in to the PHONES connector 

located in the front panel jack field. This allows you 

to listen to the stereo mix , (let’s say), to check that 

a signal is not distorted before it gets to the power 

amplifier. Since the signal is sent after the MAIN MIX 

level fader, you hear the signal with the added gain 

from the MAIN MIX Level control.
64 - MAIN MIX (left and right) - Level fader

The MAIN MIX Level fader adjusts the level of MAIN 

left and right stereo mix.