Section 4-Features and Functions of
Your ELT SW-10 Subwoofer
Your ELT-1 system includes an incredible 10”
front ported 200W subwoofer for thundering bass
response. This sub has several features you
won’t find in other subwoofers at even 2-3 times
the price. These features, and their use is ex-
plained in the section below.
4.1 Control Panel Features of Your SW-10
(see figure on next page)
1. Power switch
2. AC Voltage – Use only when traveling to
a country that uses a different voltage than
standard.
3. Power Cord – A standard IEC socket al-
lows removal of the power cord.
4. Phase – This controls the phase of your
subwoofer relative to the rest of your speak-
ers. Rotate this dial in small amounts while
you listen at your listening position to achieve
the best in-room response.
5. Frequency Adjustment – This controls
the high-frequency cut off. Generally this is
set to 80 Hz if used. We will cover this in
detail later in the manual.
6. Level – This control allows you to match
the output of your main/satellite speakers to
the sub. Set this to the lowest level when
you power your system for the first time,
then try setting the gain at 1/4 of max to be-
gin calibrating your system. It’s good to
have some room for adjustment, so try to
keep from having either the subwoofer's gain
or the subwoofer level in your receiver or
pre/pro up near it's maximum level. This will
also minimize the potential for a distorted in-
put signal.
7. Audio Inputs (RCA) – Use standard RCA
type cables. If your receiver has only one
sub out, use either L or R. Both do not have
to be used but a Y-cable can be used to gain
an additional 3 db of output.. If your receiver
has two sub outs, it is OK to use both.
8. Audio Outputs (RCA) – If your receiver
has no sub out, a ‘tape loop’ can be used if
present. You can also connect a pair of pow-
ered speakers.
9. Speaker Input – This is only used if you
have no sub out but have an extra set of
speaker terminals.
4.2 SW-10 Setup
Though relatively “plug and play” the following
information will help you configure your ELT SW-
10 properly in your new home theater environ-
ment.
Rubber and Spiked Feet
Attach the rubber bumpers included with
your subwoofer to keep from marring any
hard surfaces. Thread the screw through the
large hole in the base of the rubber foot and
attach via the pre-drilled holes in the bottom
of your SW-10. Please be careful to not over
tighten.
If used on carpet, we’ve also included audio-
phile quality brass spike feet. Simply screw
them into the threaded inserts on the bottom
of your SW-10. If your floor is not level, ad-
just the spikes accordingly to level the sub.
Note: You may notice a bolt sticking out
from the bottom of the sub – this is to hold
the SW-10’s extremely large power trans-
former in place within the sub and should be
there.
Phase
The phase dial controls the relative phase of
the subwoofer to best reinforce the other
loudspeakers in your system. With SPL me-
ter in hand or better yet on a tripod, play an
80 Hz tone (or wherever your cross your
mains to the sub) and slowly rotate the
phase control starting from "0". When you
here the loudest response, you’ve found your
optimum setting. This indicates the least
possible amount of cancellation between
your mains and subwoofer.
