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13-ULTRA UPGRADE INSTRUCTIONS

SLEDGE STA-1200D

Need Help?

If you need assistance with any part of this process, SVS Sound Experts are standing 

by. They can also help with subwoofer placement, installation, calibration, AV receiver 

settings and any other AV-related questions you have. Just call, email or chat online 

with our SVS Sound Experts:

(877) 626-5623  |  [email protected]  |  www.svsound.com

Thank you for upgrading to the Sledge STA-1200D. Your new amplifier delivers greater performance 

along with advanced control and calibration features only available via the SVS Subwoofer Control 

mobile app. Please follow all instructions carefully to ensure proper installation of your new amplifier.

Parts and Tools needed:   

• One #2 square drive bit (included).

   • 

Male spade output adapter for Sledge STA-1200D amplifier (included).

   • 

(10) replacement amplifier screws (included).

 

 

 

• A hand-held or power bit driver.

 

 

 

• A drive bit extender (optional for PC13-Ultra).

Turn off the main power switch. Disconnect the power cord and the input cable. Wait 30 

minutes before continuing to the next step. This will ensure that all residual power has 

drained from the amplifier.

Remove the ten (10) #2 square drive outer 

perimeter wood screws from the amplifier 

plate with the provided bit. For the PC13-Ultra, 

a drive bit extender may be helpful to reach 

the top/bottom middle screws on the plate, as 

these are the most recessed relative to the 

curvature of the cylinder tubing.

Partially remove the amplifier from the 

enclosure, taking care not to disconnect 

any wiring connections. If the amplifier 

seems stuck in the enclosure, please 

contact our SVS Sound Experts for advice 

on how to remove it.  

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