Input and Output Notes
Dynamic Power: The RT-12d's
amplifier is rated at 800 watts RMS and 2000 watts dynamic power. The dynamic
power rating indicates the power the amplifier will deliver to the woofer under
normal operating conditions for a subwoofer. While the RMS power rating
indicates power available on a continuous, long-term basis, subwoofers
large, short-term peaks of power to to support the wide dynamics required by
today's digital music formats and movie soundtracks. Therefore the dynamic power rating can
be used as an indication of a subwoofer's real-world performance.
Passive Radiator Design: Featuring a triangular-shape, the
RT-12d has a front firing 12-inch Cerametallic driver and two 12-inch rear-firing
passive radiators. The unique enclosure fits nicely into a corner; the driver
faces the room, and the passive radiators face both walls of the corner, for
Room Correction: The RT series of powered subwoofers feature Adaptive
Room Correction. This patent pending technology uses the included microphone to
identify the acoustic anomalies in the low frequency range of your listening
room's acoustics and compensate for them automatically. While the corrected
response may at first sound like a reduction in bass quantity, the benefit is a
higher quality bass reproduction featuring audibly faster transient response and
more noticeable extension of extremely low frequency program material.
Cerametallic Woofer: The 12-inch woofer and two 12-inch
passive radiators feature Klipsch's
distinctive, copper-colored Cerametallic material. Made with an anodized
aluminum, the cone is strong and dent resistant. The anodizing process converts
its inner and outer surfaces to ceramic. The outcome is a rigid cone with superb
damping characteristics that will not flex or resonate at frequencies within the
woofer's operating range.
DCS Digital User-Interface:
With the exception of the master power switch, all functions are adjusted using
the DCS (Digitally Controlled Subwoofer) digital user-interface on the top of the sub:
- Volume: adjust the subwoofer volume
relative to the rest of the system
- Recall Settings: recall one of five user defined settings;
Movie, Music, Night, User 1, and User 2
- EQ Mode: choose between Flat, Punch (emphasizing the 55 Hz
region), and Depth (boosts the 30 Hz region)
- Room Correction: the
room correction compensation can be turned on or off
- Low-Pass: adjust the crossover from 40 Hz to 120 Hz in
1 Hz steps;
the crossover can also be bypassed, useful for an LFE signal that's already
- Slope: the crossover
slope can be set to 18, 24, 36, or 48 dB/octave
- Phase: adjust the phase from 0° to 180° in 1° steps
- Brightness: set the display brightness to one of four settings
- Power: choose Auto On or Always On; the Auto-On Circuit turns the
amplifier on when an audio signal is detected and off after approximately 20 minutes with no input signal;
the master power switch on the back panel overrides this setting
- Play Demo: two
12-second demonstration tracks are factory loaded into the subwoofer for use
during room setup
- Keypad Lock: the keypad can be locked to prevent any accidental
- System Info:
IR Sensor: An infrared remote sensor on the rear panel
allows integration with universal control systems. The RT-12d IR codes can be
found on Klipsch's web site.
Input and Output Notes
Preamp: The left and right line-level jacks are used to connect the subwoofer to a
pre-amp, signal processor, line-level crossover, or receiver. A pair of
line-level outputs offers an easy way to connect a second subwoofer. The line
output is affected by the volume, crossover, and room correction settings.
Mic In: The included
microphone plugs in here during room correction setup.
USB: The USB computer interface allows access to additional
advanced features within the subwoofers room correction software. Optional,
proprietary Klipsch software and a higher level of technical knowledge are
required to correctly utilize this capability. This port can also function as an
alternative control interface with A/V Control systems that can utilize a USB
Amplifier: The warranty on the amplifier is 2 years parts and labor.
Driver: The warranty on the driver is 5 years parts and labor.
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