S4/8 Owners Manual Ver 0.1
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a b s o l u t e f i d e l i t y
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RCA or balanced XLR “LFE IN” connector on the S4/8. Do not use
both of these inputs at the same time.
We recommend that single-ended interconnects be no longer than 10
feet (3m). Hence, we have provided balanced LFE inputs. If your
processor is further than 10 feet from the S4/8, please use a high-
quality balanced cable.
If your processor has only single-ended outputs and is further than 10
feet from the S4/8, we recommend that you consider using an active (or
passive) signal balancing device to convert the unbalanced output signal
from your processor to a truly balanced signal. A truly balanced signal
will give you the benefit of maximum noise rejection and maximum
signal fidelity over long cable runs.
The unbalanced interconnect which connects your preamp to the
balancing device should be shorter than 4.5 feet (1.5 meters). You can
then use a balanced interconnects to connect the output of the signal-
balancing device to the input of the S4/8.
An added benefit of the S4/8 is that the servo-amplifier incorporates an
active signal-balancing device built in. This means that if your processor
has only single-ended outputs, but you can place an S4/8 close enough
to use a single-ended interconnect, then the balanced output of that
S4/8 can be used to daisy chain to the rest of the system.
LFE Gain
The S4/8 has a control for LFE
GAIN that is separate from BASS
GAIN. This allows you to have the S4/8 augment your surround
speakers as well as deliver LFE around the room at the same time
without conflicts. The usual way to control the level of the LFE output is
to set the LFE gain to 6 – the twelve o’clock position – and then use
the home theatre processor’s level control to dial in the level. However,
different locations in the room may have different room gain in the bass
frequencies. The LFE gain control allows you to tune each subwoofer
for optimum balance.
LFE Output
Along with the LFE input, the S4/8 has the unique capability of
providing an LFE output. This buffered output can be used to daisy-
chain the LFE signal from the S4/8 to the LFE inputs of other Genesis
subwoofers including other S4/8’s, S2/12t’s or G928’s. Thus, it is
possible to channel the LFE signal from your home theatre processor
to one S4/8, and then from that to another, and another, and another!
