Справочник Пользователя для Samson MDR1248

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The MDR1248 and MDR1688’s AUX1 auxiliary send can be 

used to feed a separate set of amplifiers and loudspeakers 

for stage monitors. This lets you build one mono mix for 

the amplifiers and monitor speakers facing the musicians, 

and the other stereo mix for the amplifiers and speakers 

facing the audience. 

1.     Connect the AUX1 output to your monitor's power 

amplifier or powered monitor. 

2.     Press the input channels’ AUX 1 PRE/POST switches 

in, to set AUX 1 up as a pre-fader bus. 

3.   Raise the AUX SEND 1 control knob, located in the 

Master section, up to a little past “5” or halfway.

4.     Raise the AUX 1 controls for the channels that you 

wish to hear from the monitor speakers.

NOTE: When the AUX1 PRE/POST switch is pressed in and 

set to “PRE”, the AUX 1 controls are "PRE-FADER SENDS" 

which means they are not affected by the level settings 

of each channel. This allows you to create a mix for the 

monitor system that is independent of the main LEFT and 

RIGHT MIX.   
5.    If feedback occurs, turn down the AUX SEND 1 knob 

to lower the overall level sending to the monitor. 

Then check the AUX1 levels of the individual chan-

nels to see if you need to turn one or more channels 

down. Then try to raise the AUX 1 SEND level again.  

NOTE: Adjusting the balance between the channel AUX1 

control knobs and the AUX SEND 1 is a tricky but neces-

sary part of getting good levels in the monitor system. In 

general, try to keep the master AUX SEND 1 higher than 

the channel AUX1 levels to achieve a cleaner mix. In order 

to get the most gain from your monitor mix, use an exter-

nal graphic equalizer (like a Samson S curve 131or D2500 

digital EQ with feedback control) to cut out any frequen-

cies that cause feedback.
6.    If you want to add effects from the internal effect 

processor, or the effects from an external proces-

sor connected to the AUX RETURN 2 inputs, engage 

the AUX RETURN 2 TO AUX 1 switch, located in the 

Master section, by pressing it in.

To further control your signal, channels 1-4 on the 

MDR1248 and 1-8 on the MDR1688 feature an inser-

tion point, or “effects loop”, on one 1/4-inch phone jack, 

INSERT SEND and RETURN. An insertion point is a patch-

point that interrupts the signal, allowing you to bring that 

signal outside to be processed by another device.  You 

can use these connections to interface an external signal 

processor like an equalizer, compressor, noise gate, reverb 

and other audio devices. A common application for the 

MDR1248 and MDR1688’s insert point is using a compres-

sor. 
To send a signal to an external processor, use a standard 

1/4-inch “Y” insert cable to connect the MDR1248 and 

MDR1688 channel insert point. Connect the TRS (TIP / 

RING / SLEEVE) plug to the channel INSERT point, and 

then, connect the 1/4-inch (TIP / SLEEVE), INSERT SEND  

plug to the input of the external processor. The signal is 

sent back to the MDR1248 or MDR1688, using the 1/4-

inch (TIP / SLEEVE), INSERT RETURN plug connected to the 

output of the external processor.
The diagram below shows a typical application for using a 

compressor (in this example a Samson C com opti) in the 

MDR1248 or MDR1688’s insertion point.  

Below, is a diagram showing the wire for the TRS ‘Y” Insert 

cable.