Klipsch KA-1000 THX Manuel Du Propriétaire page 4

ABOUT YOUR KLIPSCH PURCHASE
Thank you for your purchase of a Klipsch subwoofer amplifier. After reading this manual
and connecting your system, you will hear the results of over 55 years of stringent
engineering and class-leading research and development. Please be sure to fill out the
warranty card at the back of this manual or online at www.klipsch.com so we are better
able to serve you. Again, thank you for choosing Klipsch and we hope that your subwoofer
amplifier brings life to your music and movies for many years.
UNPACKING
The easiest way to remove the amplifier from its carton is to turn the open end of the box
down so that it is resting on a table or the floor, with the flaps spread out and away. Then
pull the box straight up and off. Remove any packing material from the amplifier, place it
back in the carton, and store in case you ever need to ship the amplifier.
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FRONT PANEL CONTROLS
1. Master Power On/Off
The Master Power switch turns the amplifier on and off. In addition to the Master
Power switch, the KA-1000 THX has an Auto Power function that will allow the
amplifier to turn itself on and off automatically when an audio signal is detected.
An LED indicates the current status of the amplifier – RED when the amplifier is in
Standby and GREEN when the amplifier is active. The LED is off when the Master
Power switch is set to the "Off" position.
2. Auto Power On/Off
The Auto Power switch has two settings – "On" and "Off". In the "Off" position, the
Master Power switch turns the amplifier on or off. If you leave the Master Power switch in
the "On" position and set the Auto Power switch to the "On" position, then the amplifier
will automatically turn itself on and off when an audio signal is detected. There is a 2
second On delay and a 15 minute Off delay when using the Auto Power function.
3. Phase Control
The Phase control on the KA-1000 THX is continuously variable from 0˚ to 180˚. This
control allows you to fine tune the performance of your subwoofer system by optimizing
the blend with the main speakers. Basically, one of the positions will result in an
audible increase in bass output depending upon room placement.
4. Boundary Gain Compensation On/Off
The Boundary Gain Compensation switch allows you to fine-tune the low-end extension
of your subwoofer system based upon room placement. In some room locations, your
subwoofers low-end response may become exaggerated or boomy due to the increase
in output from your room's acoustics. In this case, selecting the "On" position will
restore the system to a flatter, less boomy response. If you are using a THX® Ultra2™
receiver or processor and you have selected "Ultra2" for the sub setting, the boundary
gain compensation switch should be set to "Off."
5. THX On/Off
The THX switch provides a means to bypass the crossover and level controls when
using a THX preamplifier or receiver. In the "On" position, the crossover and level
controls do not function. (In this configuration, your preamplifier or receiver will
perform those functions.) In the "Off" position, the crossover and level controls
operate normally. Be sure the volume level on your preamplifier or receiver is turned
down before changing the setting of this switch.
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6. Lowpass Crossover
The Lowpass Crossover control allows you to select the proper frequency at which your
subwoofer system blends with your main speakers. It is selectable from 40-120Hz. You
should set this control to the approximate low-frequency limit of your main left and right
speakers. In a THX system, this setting would be 80Hz. If the THX control is set to the
"On" position, this control will not operate. An LED status indicator is provided to tell you
whether or not this control is operational – GREEN for active and RED for bypassed.
7. Level Control
The Level control is the volume setting for the amplifier. It is used in conjunction with
the subwoofer output level control on your preamplifier or receiver. It is used to adjust
the overall output level of your subwoofer system. If the THX control is set to the "On"
position, this control will not operate. An LED status indicator is provided to tell you
whether or not this control is operational – GREEN for active and RED for bypassed.
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REAR PANEL INPUTS AND OUTPUTS / CONNECTIONS AND SETUP
Make all connections with the power turned "OFF" on both the subwoofer amplifier and
your receiver or preamplifier!
1. Line Level Input
The Line Level input consists of a pair of gold-plated RCA phono jacks. Either one
or both may be used. (Use a shielded, high quality subwoofer interconnect cable of
appropriate length with RCA plugs on each end. Your dealer can help you select a
suitable cable.) This input can function as either a Line Level input or an LFE Input,
depending on the position of the THX On/Off switch. When THX is On, the Lowpass
Crossover is bypassed and the Line Level input effectively functions as an unfiltered
LFE input.
2. Line Level Output
The Line Level output consists of a pair of gold-plated RCA phono jacks. Either one or
both may be used. This output is an unfiltered passthru of the Line Level input signal.
It can be used to connect to a second KA-1000 THX amplifier or to connect back to your
electronics if needed.
3. Speaker Level Outputs
The Speaker Level outputs are two professional style Speakon
is a simple connection that is easy to use, secure and foolproof. You simply align
the tab on the connector with the slot on the output jack, fully insert the connector,
turn it clockwise and the collar locks into place (Figure 1). To remove it, pull back
on the collar and while holding it back, turn it counterclockwise and pull it out. This
connection is repeated on the back of the subwoofer enclosure. If you are using two
KW-120-THX subwoofers, connect the second one in the same fashion to the KA-1000
THX's second output jack. (A single, 20-foot length, THX Ultra certified subwoofer
speaker cable is provided with each KW-120-THX subwoofer enclosure. Contact your
dealer if you need a longer cable.)
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NL2 connections. This
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