Samson SAMSON AUDIO R8A User Manual

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The Rubicon R8as' rear control panels are where you will make your connections for both AC power and 

audio signals. The rear panel also contains the controls to make adjustments to the overall volume and 

frequency response curve. The following section details the rear panel controls and connections. 

Since the Rubicon R8as' are active studio monitors with an on-board power amplifier and electronic 

crossover, it is necessary to connect the unit to an AC power supply. Make sure that the main Power 

switch is set to the OFF position and connect the supplied IEC power cable into the AC inlet. 

When running power cables, be careful not to run the AC power cords or AC extension cords in paral-

lel  to your input cables. This will help reduce any AC hum that can be picked up. If your have to cross 

an AC line with an audio line, try to 

cross them at a 90 degree angle for 

the least amount of induced hum. 

Using the Rubicon R8a’s balanced 

input connectors will greatly protect 

against the induced hum thanks to 

the common mode rejection (the 

induced hum is phase canceled) that 

it's balanced input circuit provides.

POWER SWITCH – The POWER 

switch is used to turn on the Rubicon 

R8a’s active electronics. When set 

to the ON position, the front panel 

LED will illuminate red, indicating 

the Rubicon R8a  is powered up and 

ready for operation.  

AC INLET  - Connect the supplied IEC 

power cable here.

The  Rubicon R8a's rear panel pro-

vides two important controls for 

adjusting the overall sound of 

the monitor, RIBBON LEVEL and 

Volume.  Eventually, you will adjust 

these controls to your preferable 

position and  “set it and forget it”.  

That’s assuming that the monitors 

remain in the same spot, in the same studio.  If you take your monitors to other studios you may find the 

controls extremely useful in adjusting the sound for the new room.