POWER LUX DSP SUBWOOFER
OWNER’S MANUAL: PL-10s, PL-12s, PL-10p and PL-12p
Thank you for choosing SoundTube’s Phase  
Technology® speakers. We know there are a wide 
variety of choices available today, and we sincerely 
appreciate your purchase of our product. SoundTube 
speakers are built to exacting standards and will  
provide many years of listening enjoyment.
Our speakers are the result of over ve decades of  
designing and manufacturing. We hold many key  
patents in loudspeaker technology including the  
soft-dome tweeter. Our mission, our passion is to  
constantly advance the art and science of accurate 
audio reproduction. Our dedication ensures your new 
speakers will accurately reproduce all the impact,  
detail, and delicacy of today’s digital technology.
Regardless of application, serious audiophile  
listening or home theater, we recommend that you  
take the time to read this manual thoroughly before 
connecting speakers to your amplier or receiver.  
In the highly unlikely event that you should experience  
a problem with set-up or operation, please contact  
one of our authorized dealers for assistance, or  
contact us directly.
•  325-Watt RMS, 750-Watt Peak Power 
  Integrated Amplier
•  10” or 12” Long Throw Mica-Graphite Poly Cone 
  with NBR Surround 
•  Sealed or 3” Ported Enclosure
•  Signal Sensing Auto Turn On/Off
•  Level and Phase Control
•  5 band Manual EQ
•  Variable Crossovers
•  Stereo LFE Inputs
•  Stereo Line Outputs with Wide Range and 
  Subwoofer Mode Congurations
• Audio Control through MSE Sound Application 
SoundTube Entertainment 
13720 W. 109th Street 
Lenexa, KS 66215
913.663.5600
www.soundtube.com 
techsupport@soundtube.com
[INTRODUCTION] [FEATURES]
SAFETY INSTRUCTIONS  .............................................. 2
GETTING STARTED & PRECAUTIONARY NOTES   3 .......
SUBWOOFER PLACEMENT .......................................... 3
HOOKING UP YOUR  
POWER LUX DSP SUBWOOFER   4 ..................................
AMPLIFIER SETUP AND BASS MANAGEMENT   5 ..........
SUBWOOFER AMPLIFIER PANEL  ................................ 6
CARING FOR YOUR SPEAKERS   7 ..................................
MAINTENANCE AND SERVICE   7 ....................................
TROUBLESHOOTING  ................................................... 7
WARRANTY  .................................................................. 8
SPECIFICATIONS  .......................................................... 9