Owner's Manual
REAR CONNECT PLATE
The
Speakon™ jacks will accept 1/4” or Speakon™ connectors.
1/4”cables can be inserted directly into the center of the connector.
Use the second connector to DAISY-CHAIN up to one additional speaker
in parallel. Speakon pin configuration is:
1+ Positive / 1- Negative
SPEAKER CABLES Use either Carvin’s PRO50S speaker cable for up to
50’ or high-current 12GA Speakon™ cables for lengths up to 150’. 18GA cables
are not recomended. You can DAISY-CHAIN up to one additional speaker per
cable by using the unused speaker connector. Be sure the total impedance to
the amplifier is not lower than the amplifier’s minimum impedance.
1. INPUT 1 XLR and 1/4” (TRS) JACK
Use these as the primary input from a mixer (or MIC, see #2). Using a balanced connection will reduce noise, which may be picked up
by the cable. You may DAISY-CHAIN as many powered systems as you wish (see #13) however, not non-powered systems (see speaker
cables).
2. MIC IN SWITCH
Use the “OUT” position for normal line-level mixer input (note: if this switch is left “IN”, all signals from the mixer will be distorted).
Press this switch “IN” to add 30dB of gain to the XLR and 1/4” inputs of INPUT 1 so that a microphone can be used.
3. LEVEL CONTROLS
The LEVEL on LINE/MIC 1, INPUT 2, and INPUT 3 adjust the overall volume.
4. INPUT 2
This input is designed with a high impedance (>100K ohms) for instruments such as a guitar. Other sources such as keyboards or drum
machines can also be connected.
5. INSTRUMENT SWITCH
Press the switch “IN” to provide an alternate tone for instruments on INPUT 2.
6. INPUT 3
The RCA jacks are for iPod’s, MP3 players, CD players, keyboards, and DJ mixers. The signals from the two RCA inputs are combined into
a mono signal. For stereo operation, a second active speaker is required feeding the Left (White) and Right (Red) RCA of each system.
7. SHAPE SWITCH
Press the switch “IN” to change the EQ. Use for pre-recorded music on INPUT 3.
8. ACTIVE EQUALIZATION
The active powered loudspeakers offer a 3-band mid sweep equalizer for custom tuning to the acoustical environment. The EQ system is
engineered specifically for the active powered loudspeakers featuring a modest boost and cut range of ±6dB to prevent radical adjustments
that could otherwise compromise the system. The Mid-band sweep is particularly useful for enhancing critical mid range frequencies for stage
monitoring or for cutting certain frequencies to compensate for room resonances.
9. PROTECT LED
If the system should go into protect mode, the YELLOW LED will light and the power amps will shut off. This may occur if; a) the system is
overheated due to clipping the power amps for an extended period of time, b) one of the internal drivers developed a short, or c) the power
amps require service.
10. CLIP LED
The RED CLIP LED will flash if the internal power amps start to distort. Turn the LEVEL controls down to avoid distortion. Damage to the
drivers can result from operating at a level where the RED CLIP LED is constantly illuminated.
11. POWER SWITCH and LED
Push this switch to the “ON” position to apply power to the unit. The blue POWER LED will light to show the system is on. Power up your
mixer first, then turn on the LM Active System. When shutting down, turn the LM active speaker off first, then turn off the mixer.
12. AC POWER
Use a standard grounded AC cord. Whenever possible, use dedicated circuits for powered speakers. The powered speakers are available
in either 120V or 240V models.
13. OUTPUT XLR
Use the second XLR to link as many active powered systems as you wish. (see #14)
14. OUT MIX/THRU SWITCH (for daisy chaining additional systems)
Press the switch “IN” for a direct PARALLEL connection to INPUT 1 only - use with external mixer and for daisy chaining other LM systems.
With the switch in the “OUT” position, the combination of all channels including the EQ are sent to the #13 OUTPUT XLR. This unit becomes
the master source for other powered systems.
OUT MIX / THRU
ON
OFF
90-250VAC 50-60Hz
300VA
CERTIFIED
20Hz 1 kHz 20 kHz
ATTENUATION dB
Low Frequency High Frequency
Low
Pass
Filter
High
Pass
Filter
300 Watts
LS1502A
50 Watts
20Hz 1 kHz 20 kHz
ATTENUATION dB
Low Frequency High Frequency
Low
Pass
Filter
High
Pass
Filter
300 Watts
742A, 832A
50 Watts
20Hz 1 kHz 20 kHz
ATTENUATION dB
Low Frequency High Frequency
Low
Pass
Filter
High
Pass
Filter
300 Watts
742A, 832A
50 Watts
300 watts 50 watts
Speakon Connector
ACTIVE POWERED MODELS
NON-POWERED MODELS
1
3
6
7
3
5
4
3
2
8
9
10
11
12
14 13
TROUBLESHOOTING TIPS
• If the protect LED illuminates, cycle power switch off for ten seconds and reapply power.
• Protect LED may illuminate due to the following reasons: overdriving, temperature,
or failed speaker drivers.
• Be sure pole mount thumb screw is tightened to avoid rattling which could be
perceived as audible distorion.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This symbol is intended to alert the
user to the presence of uninsulated
“dangerous voltage” within the prod-
uct’s enclosure that may be of suf-
ficient magnitude to constitute a risk of
electric shock to persons.
THIS UNIT CONTAINS HIGH VOLTAGE INSIDE!
IMPORTANT! FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:
WATER AND MOISTURE: Do not expose this appliance to rain or moisture. Do not use this apparatus near water (in a wet basement, near a
swimming pool, bathtub etc). Care should be taken so that liquids are not spilled or splashed onto the unit. Do not place objects filled with
liquids such as beverage containers on this apparatus.
POWER SOURCES: The appliance should be connected to a power supply only of the type described in the operating instructions or as
marked on the unit. Unplug during lightning storms.
GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding or polarization means of an appliance is not
defeated.
POWER CORD: Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or
against them, paying particular attention to cords at plugs and the point where they exit from the appliance. The plug or power inlet is
the disconnect device and shall remain readily operable.
PLACEMENT: Do not block ventilation openings. Do not install near heat sources such as radiators, stoves or other products that
produce heat. Do not install in a confined area. Use only mounting hardware such as brackets and tripods recommended by the
manufacturer.
SERVICING: The user should not attempt to service the unit. All servicing should be referred to qualified service personnel.
FUSING: If your unit is equipped with a fuse receptacle, replace only with the same type fuse. Refer to replacement text on the unit
for correct fuse type.
This symbol is intended to alert the
user to the presence of important
operating and maintenance (servic-
ing) instructions in the literature
accompanying the appliance.
LIMITED WARRANTY
Your Carvin product is guaranteed against failure for 3 YEARS unless otherwise stated. Carvin will service and supply all parts at no
charge to the customer providing the unit is under warranty. Shipping costs are the responsibility of the customer. CARVIN DOES
NOT PAY FOR PARTS OR SERVICING OTHER THAN OUR OWN. A COPY OF THE ORIGINAL INVOICE IS REQUIRED TO VERIFY YOUR
WARRANTY. This warranty does not cover, and no liability is assumed, for damage due to: natural disasters, accidents, abuse, loss of
parts, lack of reasonable care, incorrect use, or failure to follow instructions. This warranty is in lieu of all other warranties, expressed
or implied. No representative or person is authorized to represent or assume for Carvin any liability in connection with the sale or
servicing of Carvin products. CARVIN SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
When RETURNING merchandise to the factory, you must call for a return authorization number. If your unit is out of warranty, you
will be charged the current FLAT RATE for parts and labor to bring your unit up to factory specifications.
HELP SECTION
1) UNIT WILL NOT TURN ON: Check the power to the AC cord. Check for tripped circuit breakers, unplugged extension cords or
power-strip switches that may be turned off. Check the fuse or circuit breaker on the unit if available. If the fuse has been replaced
with the proper value and the fuse fails again, or the internal circuit breaker activates after reset, the unit will require servicing.
2) NO OUTPUT with POWER light ON: Shipping damage will be the primary reason for your product to not function properly. Please
give us a call to help you determine the problem.
3) KEEP YOUR UNIT LOOKING NEW: Use only a dry cloth to wipe the control and venting areas. Surfaces without openings may be
cleaned with a damp cloth.
REFER SERVICING TO A QUALIFIED TECHNICIAN
CAUTION
ACTIVE REAR PANEL:
(CONNECT PLATE)
OUT
TA
PE IN
L R
GAIN
8
LEVE
L
LOW
MON
0
3
6
12
3
6
9 9
12
5
4
3
2
1
0 1
0
9
8
7
6
5
4
3
2
1
0 1
0
9
8
7
6
HI
0
3
6
12
3
6
9 9
12
MI
D
0
3
6
12
3
6
9 9
12
EFF
OF
F
3
6
9
9
6
3
PA
N
0
•
•
•
•
L R
•
•
•
•
MI
C
LINE
EFF2
EFF
1
Optional FS22
Footswitch
dcm
19
CHANNEL
1
2
3
4
5
6
7
8
9
10
11
12
13
15
17
22
30
50
0 dB
1 2
CHANNE
L
1
2
3
4
5
6
7
8
9
10
11
12
13
15
17
19
22
30
50
0 dB
250
500
100
CHANNEL
1
1K
2.5K
0
8
4
4
8
12
12
+
-
5K
10K
10K
10K
0
8
4
4
8
12
12
+
-
250
500
100
CHANNEL
1
1K
2.5K
0
8
4
4
8
12
12
+
-
5K
10K
10K
10
K
0
8
4
4
8
12
12
+
-
PROTEC
T
∞
50
30
22
19
17
15
13
12
11
10
9
8
7
6
5
4
3
2
1
0 dB
DCM1000
1
000
W
a
tt
Po
w
er Am
p
CLI
P
SIGNAL
∞
50
30
22
19
17
15
13
12
11
10
9
8
7
6
5
4
3
2
1
0 dB
POWER
CHANNEL ON
E C
HANNEL TW
O
CLIP
SIGNA
L
To
m
iPod is a Trademark of Apple Computers Inc.