Samson dB1800a User Manual

Two dB1500a or dB1800a’s can be used with any pair of powered full range enclosures like the Samson dB500a, XP200 
and XP300.  Below is a typical system set-up using two dB1500a and dB1800a’s with a mixer and a pair of powered sat-
ellite loudspeakers.  The dB1500a and dB1800a’s inputs and outputs utilize industry standard XLR connectors.  For a 
detailed wiring diagram, see the section "dB1500a and dB1800a Connections" on page 11.  Follow the steps below the 
diagram to set up your system.

• 

 Connect the mixer’s left output to the left-side dB1500a 
and dB1800a’s left input and the mixer’s right output to 
the right-side dB1500a and dB1800a’s right input.  Now 
connect the left-side dB1500a and dB1800a’s left output 
to the input of the left powered satellite, and right-side 
dB1500a and dB1800a’s right output to the input of the 
right satellite.  Switch both the Stereo/Mono selector 
switches to the Stereo position.

• 

 Now adjust the crossover SWEEP to the desired frequen-
cy.  For the db500a select 60-80Hz and for the Expedition 
XP200 & XP300 select 80-100Hz.  If you are using another 
brand of powered speaker as satellites with the dB1500a 
and dB1800a, consult their respective owners manuals 
for the recommended crossover point.

• 

 Lower your mixer’s master outputs to all the way off.  
Now set the level of your powered satellites up to the 
normal operating level.  Run an audio signal (like some 
music from a CD) through your mixer and raise the level 
to a comfortable listening volume.  Now slowly raise the 
dB1500a and dB1800a Level control and listen to the 
low frequency output. Adjust the dB1500a and dB1800a 
to the level to low frequency output that you like.  Now 
when you raise and lower your mixer’s output, the 
dB1500a and dB1800a and satellites will track at the same 
relative volume.

ENGLISH

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