Lfe Input - KRK Systems 12sHO Guide D'utilisation

Line Outs have a fixed High Pass Filter (HPF) that passes only the mid and high frequencies above 80Hz to
the studio monitor.
(see additional information in the Connecting Your System section).
(3) PHASE ADJUSTMENT
The phase of the subwoofer can be fine tuned to adjust the phase of the subwoofer at the listening
position. A proper in-phase subwoofer will yield more bass than one that has not been adjusted. Be sure
the speaker is placed in an optimal location before making the final adjustments. (refer to the Setting
Subwoofer Levels section below).

(4) LFE INPUT

The LFE (Low-Frequency Effects/Enhancement) input is intended for a surround system with a channel
dedicated to low frequency sounds ranging from 3 Hz to 120 Hz. Ensure the Low-Pass Frequency
adjustment control is set to the LFE setting (fully clockwise).
(5) RIGHT & LEFT INPUTS - BALANCED
The RIGHT & LEFT inputs are connected to your audio equipment outputs, such as a mixing console, or
audio interface
(6) RIGHT & LEFT OUTPUTS - BALANCED
The RIGHT & LEFT outputs are connected to your studio monitors. The subwoofer outputs have a fixed
80Hz High Pass Filter(HPF) that removes low frequencies and passes only the mid and high frequencies to
the studio monitors.
(7) POLARITY
The polarity switch position of 0 or 180 degrees depends on a number of variables. These variables
include, the distance of the subwoofer from the listening position and monitors, as well as the system's
absolute polarity and the bass response of the room (refer to the Subwoofer Setup and Placement
section in order to determine the correct switch position for your monitoring system and room).
(8) LIMITER
The subwoofer contains a limiter circuit which provides improved protection. The default setting for this
switch will be in the OFF position. The limiter is designed to mitigate the negative effects of over driving
the amplifier and or the speaker's driver. The limiter, when engaged to the ON position, can greatly
reduce the risk of harming a driver.
(9) GROUND LIFT
Engaging the ground lift switch can sometimes reduce ground loop noise in your system. By providing an
AC mains ground on the KRK12sHO and proper installation in a 'quiet studio' environment, the system is
happily quiet. However, noise will be induced if the monitor is installed in less than desirable settings (i.e.
audio cables run alongside power cables, behind refrigerators, near florescent lighting, older buildings
with bad wiring), or with certain equipment with lots of RFI (lap-top supplies, PCs, generator supplied AC
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