Niles AT8700 Installation & Operation Manual page 14

Unobstructed space
for speaker wiring
Figure 10
stereo system itself (See Figure 9). The
other very common route is through the
bottom plate of the wall into an unfinished
basement or crawl space.
Identify where all of your electrical, phone,
and TV wiring is likely to be and plan to
route around it all. You can accidentally
induce 60 Hz hum on your speakers if you
run your speaker wire right beside electri-
cal wire for more than a few feet. Try to
keep speaker wire running parallel to
power cables at least 3 feet away. To find
exactly where an electrical cable is routed,
try inspecting the inside of the wall by turn-
ing off the breaker for a particular power
outlet or switch, removing the cover plate
and switch or receptacle, and shining a
penlight into the wall. If you have access to
an attic or basement space you can quick-
ly see which part of the wall space the wire
is free of obstructions (See Figure 10).
When you don't have access above or
below the wall, try to estimate the existing
wire and pipe locations from the positions
of electrical outlets and plumbed fixtures
on both sides of the wall. Take a look at the
outside of your house too, sometimes con-
duit, vents or drain pipe will be visible that
give useful information. Choose the route
with the fewest potential obstacles.
12
If your house is built on a slab or you are
wiring between two finished floors, look
for baseboards which could be removed
and replaced with the wire behind them.
Doorjambs can be removed and often
have enough space for speaker wire all the
way around the door (See Figure 11).
Figure 11