Specifications

1110
4. THX-12SUB, THX-10SUB
and THX-10SUBt Controls
Your THX-SUB Subwoofer has three control switches on the back panel:
1. Operational Mode Switch o THX or Variable positions
 THX position:

For one THX-12SUB, two THX-10SUB, or two THX-10SUBt subwoofers

Meets all required specifications for THX Select Certification

For one THX-10SUB or one THX-10SUBt

Meets all required specifications for THX Select Certification but amplifier gain is 4.5dB lower
 Variable position: The THX-SUB operates under THX specifications except for the internal amplifier's gain.
 You can change the output level in Variable mode with the Volume Control knob
2. Volume Control knob: Rotating increases or decreases the output sound level of your THX-SUB
when in Variable Mode
3. Phase switch: Controls the phase of the subwoofer's low frequency output
4. Choose between Normal and Reverse positions and stay with the one that produces the most powerful,
deepest and most controlled bass response in your room
1 POWER ON/OFF
Switch (always on
standby when ON)
and power indicator
2 VOLUME Control
3 PHASE Switch
4 MODE Switch
for THX and SUB
5 ÇEAT SINK
6 LOW LEVEL INPUT
Figure 5: Control layout
3. THX-System Speakers connections
Figure 4: Speaker
Connections
CAUTION:
All Equipment
Must Be
Powered Off
Before Making
Any Connections
Attach speaker cables to the binding posts on the rear panel of the speaker cabinets. Our biwiring terminals
allow a variety of connection methods.
1. Single Pair: For each channel, jumper links in place, connect the speaker cable's red positive (+) con-
nector to the red positive output binding post of your receiver or multichannel amplifier, and the black neg-
ative (-) connector to the black output terminal. Switching positive and negative on one channel's connec-
tions reduces bass output and creates ill-defined, bloated imaging. Once you hear the effect, it's easy to
recognize. Tip: Connect the speaker cable to the upper tweeter binding posts on the speaker, letting the
jumper links take the signal to the low frequency drivers for cleaner, more extended highs.
2. Biwire - Two Cables Per Side: Remove all jumper links for biwire operation! Attach another pair of
speaker cables between the speaker's low frequency output binding posts and your receiver or multichan-
nel amplifier, keeping red and black polarity correct. Tip: Biwiring improves the resolution of low-level
details, the foundation of all high performance sound. Incorrect polarity will sound as above and interfere
with proper frequency response.
Make sure to use the correct set of receiver of multichannel output terminals for each speaker
 Left and Right Front Speakers: Use the Left and Right Front output binding post terminals on your
receiver or multichannel amplifier to connect your THX-T3 floorstanding speakers
 Center Channel Speaker: Use the Center output terminals on your receiver or multichannel amplifier
to connect the THX-Center speaker
 Surround Speakers: Use two Surround output binding post terminals on your receiver or multichannel
amplifier to connect the two THX-Dipole speakers