LINEAR 3 1.2
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1 Control Features
Every powered LINEAR 3 mid/ high unit features three input channels (A, B,
C). They may be operated in parallel and adjusted separately.
+6 dB
0 dB
Gain A
Input A
Thru A
Gain B
Gain C
Input C
Input B
Out
+6 dB
0 dB
Mix Out
A+B+C
Thru B
Line
Mic
L
R
HK Audio is a brand of Stamer Musikanlagen GmbH
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Caution: Risk of electric shock!
Do not open! Refer servicing to
qualified service personnel.
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1
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1
Gain A/B/C
Use this knob to adjust the input gain to match the incoming signal’s level.
Adjusting volume levels with the Gain knob:
The +4 dBu (center-notched 0 dB) position is the factory default setting. It
is tuned to achieve the right balance of levels between the mid/ high unit
and subwoofer. If necessary, turn the Gain knob to adjust the balance of
levels between the mid/ high unit and subwoofer(s) to suit the incoming
line signals.
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2
Mic/Line Selector
(Channel A only)
When connecting a microphone, you can optimize the input’s gain level by
setting this switch to Mic. This setting provides a 30 dB boost.
When connecting a line-level source such as a mixer, audio playback device,
or electronic musical instrument, set this switch to Line.
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Input A
This electronically balanced, combo XLR-1/4" (6.3 mm) jack accepts an input
signal (pin 1 = ground, 2 = +, 3 = -) as determined by the position of the Mic/
Line Selector
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2
.
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Thru A
Thru A is a parallel, balanced XLR output that routes input signals from
Input A through to another destination, for example, a powered monitor.
(pin 1 = ground, 2 = +, 3 = -).
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Input B
This electronically balanced, combo XLR-1/4" (6.3 mm) jack accepts line
signals (pin 1 = ground, 2 = +, 3 = -).
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Out (Thru B / Mix Out)
Channel B Out is a balanced XLR output (Pin 1= Ground, 2= +, 3= -) that
serves the following two purposes:
Button set to Thru B:
Out is confi gured as a parallel output used exclusively to route input signals
from Input B, for instance, to a powered monitor.
Button set to Mix Out A+B+C:
In Mix Out mode, this output routes out a summed composite of input
signals A, B and C. You can adjust individual signals within this mix using
the respective Gain knobs.
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Input (Channel C)
These unbalanced RCA jacks accept stereo input signals from high-
level audio sources such as CD and MP3 players, DJ mixing consoles and
computers. The left and right channels are summed to mono.
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Status LED
The dual-color LED indicates the status of the powered LINEAR 3 speaker
(green = power on, red = error).
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Power
This is the LINEAR 3 powered cabinet’s on/off button. The signal LED lights
up green to indicate the cab is powered up.
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Mains
Use the factory-included power cord to connect this socket to a wall outlet.
Heads up! Around 0.5 watts of power are consumed when the unit is off .
Note: A powered LINEAR 3 mid/ high unit is equipped with a V-Lock
mains socket. If you use a „Volex“ locking power cord or another
optionally available brand with the same design, you can fi x the power
cord in place to prevent accidental disconnection
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Auto Sleep
LINEAR 3 mid/ high units‘ Auto Sleep is defeatable; that is, it may
be switched on and off . The built-in amp switches to standby mode
(Consumption around 0.5 watts) when the button is set to On and the unit
does not receive a signal for 180 minutes. To power the LINEAR 3 enclosure
back up again, simply set its Power button to Off for fi ve seconds and then
back to On. The mid/ high units will remain up and running if you disable
Auto Sleep by setting this button to Off .
Power
Mains
Green = On
Red = Error
On
Off
Serial No.
Auto Sleep
Signal/Limit
On
Off
Bass Boost
Flat (LF)
Flat (HMF)
Contour
220-240 V~
50-60 Hz
3 A rated
current
Caution: To reduce the
risk of electric shock,
grounding of the center
pin of this plug must
be maintained.
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