JL Audio Fathom f110 User Manual
Page 25

Page 25
| Fathom f110
SYSTEM CONNECTION DIAGRAM 4:
Two Fathoms in Stereo to 
Two-Channel Audio System
When connecting two Fathoms in
stereo to a two-channel audio system you 
will only use the “Left or Mono” inputs 
of each Fathom. Th
e upper “Input Mode”
switch on each Fathom will be set in the 
“Master” position.
We strongly recommend that you
use a high-quality active crossover 
to divide your preamplifi er’s signals 
prior to connection to the Fathom and 
to the amplifi er driving your main 
speakers. Th
is will allow you to fi lter low
frequencies out of the signals driving 
the main speakers, resulting in better 
performance.
If you are not using an active crossover
and are comfortable running your main 
speakers full-range, you can split your 
preamplifi er’s output signals using 
appropriate Y-connectors in place of the 
active crossover shown in the diagram.
Two connection types are available
for connecting the Fathoms to your 
two-channel audio system: balanced 
(XLR or 1/4-inch TRS connector) and 
unbalanced (RCA-type connector). 
Balanced connections provide superior 
noise rejection and ensure proper 
grounding between components. If your 
preamplifi er or active crossover off ers 
balanced outputs, we highly recommend 
that you use them. 
In the connection diagram at right,
balanced connections are shown as solid 
lines, unbalanced connections are shown 
dotted. You will only use one of these 
input connection methods (not both).
NOTE: If desired, additional Fathoms 
can be connected in “Slave” mode to 
each Fathom connected as shown on this 
diagram. See “Connection Diagram 2” on 
page 23 for slave connection explanation.
es with part 15 of the FCC rules. Operation is
owing two conditions: (1) this device may not
rference, and (2) this device must accept any 
ved, including interference that may cause 
n.
es with part 15 of the FCC rules. Operation is
owing two conditions: (1) this device may not
rference, and (2) this device must accept any 
ved, including interference that may cause 
n.
LOW OUT
(SUB OUT)
RIGHT
LEFT
LOW OUT
(SUB OUT)
OR
STEREO ACTIVE CROSSOVER (BALANCED OUTPUTS)
STEREO ACTIVE CROSSOVER (UNBALANCED OUTPUTS)
FATHOM REAR CONTROLS (MASTER)
FATHOM REAR CONTROLS (MASTER)
WARNING
WARNING! TURN OFF THE FATHOM(S) AND ALL OTHER EQUIPMENT IN 
THE SYSTEM BEFORE MAKING OR CHANGING ANY CONNECTIONS! 
