Cylinder Cabinet Design: The SVS PC12-Plus powered subwoofer
features a cylinder cabinet design and three top-firing 3" high-flow ports with
inner/outer port flares for smooth, deep bass and high output efficiency. The
cylinder styled PC12-Plus outperforms many larger ported "box-style" powered subs.
The SVS PC12-Plus delivers unmatched bass performance per square inch of floor
space giving you the sheer power of a much larger ported subwoofer. Its cylinder
cabinet features MDF (Medium Density Fiberboard) construction and is wrapped in
a black cloth, along with a non-resonant
steel mesh grille on top.
Note: There are 3 foam port blockers included if the
powered sub's bass sound is too "boomy" and you prefer a tighter bass
response. You can choose to block one, two, three, or zero ports.
12" High Output Woofer: The front-firing 12" high output
woofer of the SVS PC12-Plus powered subwoofer pumps out deep and powerful bass
with low distortion, for smooth and accurate performance on music and movies
soundtracks. The woofer features an ultra-light and rigid 12" composite
pulp/fiberglass cone for excellent transient response, dual linear-roll spiders
and stitched parabolic surround for extreme excursion capability, and a bifilar
wound 3" high-power aluminum voice coil for extreme power handling. The woofer's
Finite Element Analysis (FEA)-optimized motor with copper shorting sleeve
reduces gap induction and distortion, while its oversized pole vent allows for
STA-800D Sledge Amplifier: The PC12-Plus powered subwoofer
employs a Sledge STA-800D amplifier with efficient and cool-running Class D
topology. The amplifier is conservatively rated at 800 watts RMS and 2300 watts
Peak. This amp features a highly advanced DSP & EQ processor offering unmatched
control over the subwoofer at all volume levels, for distortion free bass.
LCD & Controller: There is a rear-panel 3-way knob and a
two-line LCD that allow you to set the various functions and parameters of the
PC12-Plus powered subwoofer.
- Volume: The Volume Control (-100 to 0dB) affects how
loud the powered subwoofer plays. It should be adjusted to match the output
level of your loudspeakers.
- Low Pass Filter: The Low Pass Filter sets the frequency
and slope for the low frequencies that will be played by the powered
subwoofer. Frequency choices include 31, 40, 50, 63, 80, 100, and 125Hz.
Two Slope choices are available; 12 dB per octave and 24 dB per octave. You
can disable the Low Pass Filter, if your AV receiver features an LFE output
and built-in bass management for the subwoofer.
- Phase Degree: The Phase Degree Function allows the
adjustment of timing for the arrival of bass information from the subwoofer
to the listening position. This allows for a finer degree of subwoofer
integration with your main loudspeakers. The range of adjustment of this
control is 0 to 10 milliseconds in 1 millisecond increments.
Room Correction: The SVS PC12-Plus powered subwoofer
provides Room Compensation and P-EQ functions that help compensate for your room
characteristics and boost the level of bass performance.
- Room Compensation: The Room Gain Compensation Function
allows the subwoofer to be set to compensate for the increase in low
frequency sound based upon the size of the room, if it is felt there is too
much bass. Small rooms will have a greater increase in low frequency sound
than larger rooms. There is no need to use this control unless it is felt
there is too much low frequency energy being generated in the listening
environment. This function operates by setting a corner frequency of 40Hz
(small size rooms), 31Hz (medium size rooms), 25Hz (large size rooms) or
Disabled (no compensation), and allows a target slope of either 6 dB per
octave (first order) or 12 dB per octave (second order) roll off from the
selected corner frequency.
- P-EQ Function: The P-EQ Function allows room
environments that exaggerate certain bass frequencies to be reduced to by up
to 12dB. Dips in frequency response can be boosted by up to 3dB. The result
of a reduction tames "boominess" and "one note bass" phenomenon that occur
when a narrow range of bass frequencies are significantly louder than
surrounding frequencies. Boosting a dip can bring forward frequencies that
are masked by normal levels around the dip. Available center frequencies
include 31, 35, 40, 46, 50, 56, 63, 70, 80, 90, 100, 112, or 125Hz. Q values
include 2.0, 2.4, 2.9, 3.6, 4.8, 5.7, 7.2, 9.6, or 14.4. The Level can then
be adjusted from +3 to -12 dB in 1 dB increments.
Balanced & Unbalanced Connectivity: There are two types of
input & output connectors on the PC12-Plus powered sub; Balanced XLR and
unbalanced RCA. There are Left/Right input and output channels for both types of
- Inputs: For a single mono input connection to a home
theater receiver with an LFE output, use either the powered sub's left or
right input. For stereo receivers without an LFE input, use both the L/R
inputs. There is a switch below the input connectors labeled "Input Level".
This switch can be used to select either consumer audio (Normal) or pro
audio (Hi-Level) voltage levels depending on the source device.
- Outputs: The output connectors are typically used to
daisy-chain additional subwoofers. The powered sub's outputs are unfiltered.
Placement Options: The cylinder cabinet's footprint lends
itself to more placement options. Tucked in the corner, the PC12-Plus can
deliver immense audio punch to movies and music played back at high levels. The
cylinder style powered sub is right at home in space- and style-restricted rooms
and home theaters, putting truly high end audio performance into a small
footprint. If possible, place the subwoofer near the front stage, for best
blending with the front and center loudspeaker channels.
- Corner Placement: Corner placement will accommodate
most rooms and will reduce the chances for encountering a null (an acoustic
cancellation in the bass response) at the listening position. If your AV
receiver equalizes the subwoofer channel during auto-set-up, corner
placement will often provide the best overall performance.
- Other Placement Options: If corner placement sound
excessively boomy, then try moving the subwoofer to other available
locations along the front stage, listening for the best balance of output
and a smooth accurate response. Always redo the auto-set-up of your AV
receiver after moving the subwoofer to a different location to ensure the
acoustic distance and calibration level are set correctly.
- Dual Subs: To maximize the bass output and impact of
your home theater, two PC12-Plus(s) can be paired; one on either side of
Auto/Standby & On Switch: If this switch is set to
"Auto/Standby", it will automatically turn-on the powered subwoofer in the
presence of an audio signal. If no signal is present for a period of several
minutes, the powered subwoofer will enter "Standby" mode, where power
consumption will be less than 0.5 watts. If this switch is set to "On", the
amplifier will remain on continuously and will not enter "Standby" mode.
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