Inputs And Outputs Notes
Overview: The Polk Audio XRt12
Reference tuner is a component-sized XM Satellite Radio tuner that fits into
your audio rack along with your receiver and other A/V components. The XRt12 is
equipped with audiophile-grade components which will insure you will hear all of
satellite radio's potential sound quality.
XM Satellite Radio: XM Satellite Radio programming offers 170 digital radio channels including 69 channels of commercial free music, plus news, sports, talk, comedy, and other entertainment programming from coast to coast. XM also offers instant traffic and weather alerts for 21 major US cities, as well as live sports broadcasts from Major League Baseball, NHL, the PGA tour, Indy car racing and several major college conferences.
In addition to the XRt12, you will need an XM Satellite Radio subscription in
order to enjoy XM programming.
High Gain XM Antenna: The XRt12
is equipped with a premium high-gain XM antenna with a 20-foot cable. If
additional cable is needed, you can connect up to two 50-foot extension cables,
for a total of 120 feet. The antenna must be mounted in a position that allows
it to best receive the XM signal, either via satellite or, depending upon where
you live, the XM Terrestrial Repeater system. A signal strength indicator is
available on the display to allow you to optimally aim the antenna.
Digital-to-Analog Converter (DAC): The XRt12
has a built-in high quality Burr Brown Digital-to-Analog converter for superior sound quality.
Burr Brown DACs are widely regarded as the best sounding, and are frequently
used in high-end digital surround processors.
Preamp Section: Typical plug
and play satellite radio receivers use headphone amplifiers which introduce
noise and distortion into the system. This unit's premium
high-gain audio preamp section is extremely quiet, low in distortion, and its
wide response matches the output of typical CD or DVD players. You can adjust
the XRt12's analog output to match other components in your audio system.
Internal Layout: To minimize
noise and interference, the major sections of the unit (power supply, display,
audio, XM module, preamp) are configured on separate circuit boards.
Display: The XRt12 features a
4-line blue XM display, which shows the channel name, channel number, artist
name, song title and signal strength. For best visibility from a distance, you
can switch to a larger-sized text. The brightness and contrast of the display
can be set to a level between 1 and 10.
Presets: You can store up to 20
channels in preset memory. They are organized into two groups of 10 channels.
Channel Skip/Add: You can skip
channels in the XRt12 channel list to prevent them from being accessible in
search mode. "Deleted" channels can still be accessed by direct entry or preset.
Preview Channels: While
listening to a channel, you can scan through the XM channel lineup, see what
channels are available, and what is currently playing, and then decide if you
want to leave your current channel. You can switch the display information from
channel name to artist name or song title.
Memory: The memory function
saves whatever information is on the display screen for later recall. If you
wish to remember the name of a particular song or artist name, pressing the
memory button on the front panel stores the information until you need it.
Auto Shutdown: You can set the
tuner to automatically shut itself off after a preset amount of time. The Auto
Shutdown feature can be set to 60, 120, or 180 minutes.
Front Panel Controls: You can
control the main functions of the XRt12 from the front panel. In addition to the
power button, the front panel also features display, memory, menu, and enter
buttons, and select up/down and category up/down rocker switches. Direct tuning
is not possible from the front panel due to the lack of a numeric keypad.
Remote Control: The XRt12 can
be controlled by the supplied wireless remote control. Although the remote does
not control volume (the receiver/amp does), you can increase or decrease the
analog audio output level if it is too low or too high. The remote features a
10-button numeric keypad, plus power, mute, preset/direct, jump, display, and
menu buttons. You can navigate through menus or channel lists using the arrow
keys and the XM "select" button. Dimensions: W=2.247", L=5.383", D=0.921".
- Signal to Noise Ratio:
- Total Harmonic Distortion +
Noise (THD + N): <0.1%
- Channel Separation: >50dB
Inputs And Outputs Notes
Direct Digital Outputs: In
addition to the analog outputs, the XRt12 offers two direct digital outputs (one
coaxial, one optical). A 43" optical digital cable is supplied. These digital
outputs let you take advantage of the ultra low noise and distortion benefits of
pure digital sound, and be able to take advantage of the Digital Signal
Processing features of your surround receiver or processor. If and when XM
starts broadcasting in surround format (technically feasable), the unit will be
ready to send digital surround signals to your multi-channel system.
Video Output: You can display channel
information as well as artist and song title information on your TV screen by
connecting the XRt12 to your TV via the supplied composite video output. A 6.75'
A/V cable is supplied for connecting the unit to your TV.
12-Volt Trigger: If you have a
receiver or preamp with a 12-volt trigger, you can connect a 3.5mm mono
mini-plug cable between the receiver/preamp and the XM Reference Tuner and
switch the tuner from Standby to On or vice versa without having to separately
press the power button. As long as the XRt12 stays plugged into an active AC
outlet, the unit will respond to 12-volt trigger signals.
RS-232C Connection: The rear
panel has an RS-232C connection for use with compatible 3rd party whole house
audio distribution systems, such as Crestron, for remote room control of tuner
and display of tuner data on remote keypads and other control devices. It is not
compatible with computers.