User Manual
ST-SUB-12
ST-SUB-10
TruAudio’s ST-SUB-10 and 12 subwoofers are designed to
be water tight with a minimal footprint. They can be
strategically installed in almost any space, delivering
booming sound from a convenient source discreetly
hidden in the landscape. The ST-SUB-10 comes in 4 ohm,
and the ST-SUB-12 comes in either 4 ohm or 70V making
it as versatile as it is powerful Please read the following
manual to ensure the best results. We at TruAudio
appreciate your purchase and wish you years of musical
enjoyment.
Contents:
• Subwoofer Encloser
• Rubber Sleeve
• Sound Port
• Sound Cap
• Silicone Filled Wire Nuts
Subwoofer Installation
The SubTerrain subwoofer provides low frequency bass
covering about 2500 sq feet. This gives you the flexibility
to place it in many locations. Whenever possible try to
locate it in the middle of the listening area.
Size of Hole
We recommend putting gravel at the bottom of the hole to
help with drainage. After placing the Sub in the hole, fill the
edges with dirt (don’t pack the dirt in too tight).
70V Tap Settings
Set taps to 80% maximum of amp’s capacity. The tap
settings can be changed as long as the total speaker
wattage does NOT exceed 80% of the amp’s power.
NOTE:
Lower tap settings allow for more speakers but a
lower maximum volume
Finding the Correct Tap Setting
AMP POWER x 80% = SAFE
500W x 80% = 400W
400W ÷ 50W = 8 Speakers
OR
400W ÷ 30W = 13 Speakers
ST-SUB-12
21.5” (548 mm)
24.5” (624 mm)
21.5” (548 mm)
9.5” (241 mm)
27” (686 mm) H,
24” (609 mm) W,
25” (635 mm) D
Description
A
B
C
D
A -
B -
C -
D -
Hole -
ST-SUB-10
16.5” (420 mm)
18.9” (480 mm)
16.5” (420 mm)
10.5” (267 mm)
21” (533 mm) H,
20” (508 mm) W,
19” (483 mm) D
A -
B -
C -
D -
Hole -
CROWN AMP
RED +
TAP SETTING
50W +
+
+
+
+
+
+
=
50W
50W
50W
50W
50W
50W
50W
= 400W or 80% of the Amp’s Power
BLACK -
