Kitchen Labs ProMediaTM - Manual (Page 6)

CONTROL TOWER FEAT U R E S
MAIN POWER SWITCH / HEADPHONE MODE
The power switch is located on the lower left side of the Control Tower. Depress and
hold for a few seconds to power on and off the system. This switch also acts to
engage the headphones. Momentarily pressing the switch engages the headphones
and removes power from the main speakers to save energy. While engaging the
headphones, "HP" is indicated in the digital readout. In headphone mode, only the
preamplifier and headphone amplifier are powered, giving the lowest possible noise
floor. To return to speaker mode, momentarily press the power switch.
MAIN VOLUME CONTROL
The large main volume knob adjusts overall system volume. The digital volume
display reads from "0 to 80" which corresponds to actual decibel increments. If this
knob is turned slowly, the volume steps will be in 1dB increments. If the knob is
turned quickly, the volume increase will be accordingly accelerated.
ADJUSTING CENTER, REAR AND SUBWOOFER LEVELS
Each of the center, rear and sub adjustment knobs will automatically change the
main readout to display the current level. The corresponding level will show once the
knob is turned in either direction, and will do so for approximately three seconds on
the digital display. The adjustment knob range is from -9dB to +15dB, with default
settings of "0".
Note: Possible gain range settings for each channel are -9dB to +15dB and will be
retained as the main volume approaches 80dB. However, new settings made at high
volumes will only be allowed as the total reaches 80dB. In other words, if the main
volume reads 75dB, the boost will be limited to +5dB, and if main volume is set to
80dB (maximum), no boost is available.
HEADPHONE OUTPUT
The 1 /
8
" stereo headphone output jack, located on the right-hand side of the control
tower, is designed for personal listening with all quality headphones. The main
volume control adjusts the headphone output while the speakers are muted. The HP
volume level remains independently adjustable from the speaker volume settings.
PORTABLE MUSIC PLAYER INPUT
This convenient stereo input will accommodate a wide variety of audio sources
without interrupting the computer setup. This also allows blending the auxiliary input
signal with the (Main) soundcard signal source. MP3 portable audio players, gaming
consoles, or any other source with a stereo mini-plug output are easily integrated into
the ProMedia 5.1 playback system. This side input jack engages +10dB input
sensitivity to help compensate for the lower output voltage of most portable players.
To obtain the proper balance with the main signal, the level adjustments in the
computer software and in the portable player will need to be adjusted. An example
would be listening to an MP3 music player while surfing the net and blending in
associated sounds from the Internet or game software. The benefits of this mixed
sound may not always be desired, and the system owner will ultimately determine
the use of this flexibility feature.
NOTE: The main volume and subwoofer level controls will affect this input source,
while center and rear levels will not. The stereo source will only come through the
front channels, since this is a two-channel signal source.
NOTE: During playback of MP3 files, overall sound quality may be perceptibly
degraded (noise/distortion) compared to other audio sources such as CD. This is
caused by the encoding method and quality of the MP3 file or the portable player
itself. It is recommended that MP3 files be encoded at a minimum 128-bit rate.
O V E RVIEW SPECIFICAT I O N S
FREQUENCY RESPONSE: 25Hz-20kHz (total system)
MAX. ACOUSTIC OUTPUT: 113dB peak
AMPLIFIER HEADROOM: 500 watts total < 0.5% THD+N typical
HEADPHONE SECTION: 200mW max into 300 ohms
450mW max into 50 ohms
CONTROL TOWER: Smart power switch, doubles as headphone engage
switch; Amber digital LED level indicator window for
all modes; Main volume, center, surround and
subwoofer level control memory (AC disconnect
resets to default); Portable music player stereo mini-
plug input with soundcard mixing function;
Headphone jack for private listening, downmixes 5.1
into two channels; Direct path amplifier interface
SATELLITE: Sealed elliptical two-way enclosures with 0.75" metal
polymer dome tweeter mated to MicroTractrix® Horn
for enhanced high frequency detail; 3" long-throw
mid-bass driver with convex dust caps for enhanced
midrange dispersion
SUBWOOFER: Bass-reflex enclosure with front port and dual side-
firing 8" long-throw drivers; flared tuned port; sixth-
order enclosure design. Convex driver dust caps
enhance subwoofer driver rigidity for unsurpassed
high output linear bass response. Professional
enclosure design includes eight T-nut screws to
secure each driver to enclosure for heavy duty
reliability.
AMPLIFIER: BASH® hybrid amplifier; discrete MOSFEToutput
power section. Dual regulating power supplies allow
maximum current delivery to the subwoofer,
independent of satellites, for unparalleled dynamic
range capability.
LIMITER: Protective limiting circuitry protects the drivers and
amplifiers from extremely high volume playback while
passing maximum power to all channels, per
configuration.
SATELLITE (W/ BRACKET): 8.5" (21.6cm) H x 4.2" (10.7cm) W x 5.67" (14.4cm) D
CENTER: 4.0" (10.2cm) H x 8.5" (21.6cm) W x 4.75" (12.1cm) D
SUBWOOFER: 11.25" (28.6cm) H x 11.875" (30.2cm) W x 15" (38.1cm) D
SYSTEM WEIGHT: 43.5 lbs. (19.73kg)
SATELLITES (EACH): 2.4 lbs. (1.09kg)
CENTER: 2.0 lbs. (.91kg)
CONTROL TOWER: 1.0 lbs. (.454kg)
SUBWOOFER: 25.5 lbs. (11.57kg)