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STA-400D Equipped Subs
STA-400D Connectivity and Panel Operation
The STA-400D Sledge™ amplifier in this SVS subwoofer has simple and straightforward connectivity and
control options that make integrating the subwoofer into the
listening environment an easy task. Even though the STA-400D
uses what appears to be analog controls, all functions are
actually implemented digitally in the amplifier. This allows
a more linear and accurate implementation of controls which
again, facilitates setup and repeatability of configuration.
Inputs
There are two low level input connectors on the STA-400D:
One labeled Line In Left (white) and the other labeled Line In
Right (red). The input signal(s) can have a “High Pass Filter”
applied which affects the signal presented to the STA-400D’s
“High Pass Out” RCA jack (single output).
Input Conguration
Typically today most Audio Video Receivers (AVRs) and Pre-amp
Processors (pre/pros) have subwoofer/bass management
capability. So, connectivity to the STA-400D amp is usually
via a single coaxial signal cable terminated with familiar large
pin-type RCA connectors. SVS sells such cables in several common lengths. The subwoofer signal cable runs from
the “Subwoofer Pre-Out” on the AVR or pre/pro to either the Left or Right low level input of your sub. It does
not matter which you use. This “typical” hookup assumes: 1.) The AVR or pre/pro does bass management for
the satellite (SAT) speakers connected to it. 2.) Handles the merging of any LFE (.1 channel in multi-channel
audio) content with the bass from the SAT speakers. 3.) Manages the proper delay of all speakers and the
subwoofer through a distance or time delay function for each utilized audio channel. Nearly all modern
AVR’s do each of these things. (see figure 4)
Connectivity & Panel Operations
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FIG. 3