LG-7512 Instruction Manual - B
1
FR
F
RO
ON
N TT PP A
AN
N EE LL V
VII EE W
W
IMPORTANT SAFETY
INFORMATION
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
2
Read these instructions.
Follow all instructions.
Keep these instructions.
Heed all warnings.
Do not use the LG-7512 near water.
Clean only with a dry cloth.
Do not block any ventilation openings. Use in accordance with the
manufacturer’s instructions.
Do not use near any heat sources
such as radiators, stoves, or other
devices that may produce heat.
Do not defeat the safety purpose of
the polarization or grounding-type
plug. A polarized plug has two
blades with one wider than the other.
A grounding-type plug has two
blades and a third grounding prong.
The wide blade or the third prong is
provided for your safety. If the provided plug does not fit your outlet,
consult an electrician for replacement of the obsolete outlet.
Protect the power cord from being
walked on or pinched, particularly at
the plug and the point where it exits
the LG-7512 amplifier.
Only use attachments / accessories
specified by B-52 Pro-Audio.
Unplug the LG-7512 during lightning
storms or when un-used for long
periods of time.
Refer all servicing to qualified
personnel. Servicing is required
when the LG-7512 has been damaged in any way such as when
power-cord or plug is damaged,
liquid has been spilled, been
exposed to moisture or rain, does not
operate normally, or has been
dropped.
To reduce the risk of fire or electric
shock, do not expose the LG-7512 to
rain or moisture.
OVERDRIVE CHANNEL
INPUT
10
0
GAIN1
10
0
GAIN2
10
0
CONTOUR
GAIN SW.
10
0
BASS
10
0
MIDDLE
10
0
TREBLE
OVERDRIVE CHANNEL
1
INPUT
(1)
(2)
(3)1
(4)
(5)
(6)
(7)
2
3
4
10
GAIN1
0
10
GAIN2
0
19 20
10
CONTOUR
6
GAIN SW.
0
10
BASS
0
7
10
MIDDLE
8
0
EXTERNAL SPEAKER
GND
LIFT
21
22
GND
LIFT
21
22
4 OHM
8 OHM
EXTERNAL SPEAKER
23
4 OHM
8 OHM
23
10
TREBLE
Input: Connects the electric guitar.
Gain 1: Adjusts the amount of distortion in Gain 1 channel (LED
for Gain1 indicates when Gain 1 channel is in use).
3 amount4of distortion
6 1 channel
5 in Gain
7 (LED 8
Gain 2:2Adjusts the
for Gain 2 indicates when Gain 2 channel is in use).
Contour: Adjusts the overall tone quality of Gain 2 channel. Low
Contour setting emphasize middle frequency. A higher setting will
notch the mid-range to produce the crunch sound characteristic in
most heavy metal sound.
Gain Switch: Selects Gain 1 or Gain 2 in O.D. channel.
Bass: Adjusts the amount of low frequency boost or cut as
desired in O.D. channel.
Middle: Adjusts the amount of mid frequency boost or cut as
desired in O.D. channel.
REE A
R
AR
R PP A
AN
N EE LL V
VII EE W
W
19 20
5
GETTING TO KNOW YOUR LG-7512
0
(19)
AC Inlet: Connects AC power cord.
(20)
Fuse Holder: Contains primary fuse.
(21&22) Ground-Lift: Remove ground from the circuit to eliminate excessive
60 cycle hum.
(23)
External Speaker Jacks: Connects the external speaker(s) with a
impedances of 8 and 4 ohms.
(24)
Line Out Jack: Connects a unit with line level input, e.g. mixer.
(25)
Level Control: Controls the Line Out Level.
(26)
Footswitch Jack: Connects a footswitch to select clean/overdrive
channel and gain1/gain2 channel.
FR
F
RO
ON
N TT PP A
AN
N EE LL V
VII EE W
W
CLEAN CHANNEL
10
0
LEVEL
CH. SEL.
10
0
LEVEL
10
0
10
0
BASS
MIDDLE
POWER
10
0
10
0
TREBLE
REVERB
10
0
LG-7512
PHONES
MASTER
CLEAN CHANNEL
9
(8)
LEVEL
0
10
(9)
(10)
9
(11)
(12)
(13)
(14)
10
11
12
13
14
CH. SEL.Adjusts
BASS of high
TREBLE
LEVEL
MIDDLE
Treble:
the amount
frequency
boost or cut as desired in the O.D. channel.
Level: Controls the complete signal of the overdrive channel.
Channel Switch: Selects between clean and
overdrive
for Overdrive
14
11 (LED12
10 channel.
13 Channel
indicates when O.D. is in use. LED for Clean
Channel indicates when clean channel is in use.
Level: Controls the complete signal of the clean
channel.
Bass: Provides desired amount of bass response
in clean channel.
Middle: Provides desired amount of middle
frequency equalization in clean channel. S/No.:
Treble: Provides desired amount of high
frequency equalization in clean channel.
0
10
0
10
10
0
LEVEL
S/No.:
LINE OUT
0
24
10
LEVEL
LINE OUT
24
(28)
(29)
(30)
(31)
16
0
15
10
0
17
10
16
ON
18
Do not attempt to service the LG-7512 by yourself. Refer all servicing to a B-52 Authorized
dealer. Service is required when the LG-7512
has had liquid spilled on it or has been damCAUTION has been
aged in any way, the amplifier
RISK OF ELECTRIC SHOCK
exposed to rain or moisture,DO does
NOT OPEN not operate
normally or has been dropped.
CAUTION - TO REDUCE THE RISK OF FIRE,
REPLACE ONLY WITH THE SAME TYPE OF FUSE.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRICAL
RE ATHIS
R PEQUIPMENT
A NEL V
E WOR
SHOCK, DO NOT EXPOSE
TOIRAIN
MOISTURE
CHANNEL REVERB
GAIN
FOOT SWITCH
26
25
27
CHANNEL REVERB
GAIN
Footswitch Jack: Connects a footswitch to switch
reverb ON and OFF.
Return Level: Controls the returning signal level.
Return Jack: Connects the guitar amplifier to out
put of an effects unit.
Send Level: Controls the sending signal level.
Send Jack: Connects the guitar amplifier to input
of an effects unit.
18
17
AMPLIFIER PRECAUTIONS
FOOT SWITCH
25
POWER
PHONES
MASTER
REVERBReverb:
(15)
Adjusts
the reverberation
effect.
LG-7512
(16)
Master: Controls the overall signal level of the
guitar amplifier.
(17)
Phones: Connects a stereo headphone.
(18)
Power Switch: Turns the amplifier ON or OFF.
CC
CC
(27)
10
0
10
0
15
ON
26
27
RE A R P A N E L V I E W
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION - TO REDUCE THE RISK OF FIRE,
10 OF FUSE.
0 TYPE
REPLACE
ONLY
WITH THE SAME
10
0
LEVEL
WARNING:
TO REDUCE
THE RISK
OF FIRE SEND
OR ELECTRICAL
LEVEL
RETURN
SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE
29
28
0
10
LEVEL
RETURN
28
29
30
0
31
10
LEVEL
SEND
30
31
WARNING: SHOCK HAZARD!
To reduce the risk of fire or electrical shock, do not expose
this unit to rain or moisture. Do not operate your LG-7512
near a pool or other standing water. Make sure all blades
on the polarized power plug are fully inserted into the
power source. Ensure the powercord is not stretched,
pinched or otherwise abused. Ensure the power cord is
routed to avoid foot traffic. Your LG-7512 amplifier should
be cleaned only with a dry cloth.
3
WARRANTY
Thank you for choosing this B-52 Pro-Audio sound product. B-52 manufactures some of the world’s best sounding and most reliable professional speaker systems and
components. E.T.I. Sound Systems, Inc., manufacturers
of B-52, takes great pride in thoroughly testing each
B-52 product prior to shipment. Please read the warranty terms and conditions below and carefully read the provided Limited Warranty Card for additional terms and
conditions.
B-52 AMPLIFIER: E.T.I. Sound Systems, Inc. warrants
the original purchaser that the B-52 amplifier will be free
from defects in material and workmanship for a period of
(2) TWO YEARS from the original purchase date. A
dated sales receipt will establish coverage under this
warranty. This warranty will automatically terminate (2)
two years after the original sales date. If this product is
defective in materials or workmanship as warranted
above, your sole remedy shall be repair or replacement
as provided above. See provided Limited Warranty Card
for additional terms and conditions.
B-52 CABINETS: E.T.I. Sound Systems, Inc. offers a
LIFETIME warranty to the original purchaser that B-52
cabinet’s construction will be free from defects in material and workmanship. A dated sales receipt will establish
coverage under this warranty. The warranty does not
cover service or parts to repair damage caused by neglect, abuse, normal wear & tear and cosmetic appearance of the cabinetry not directly attributed to defects in
material or workmanship, or service & repair, modifications to the cabinet which has not be authorized or
approved by E.T.I. Sound Systems, Inc. If this product is
defective in materials or workmanship as warranted
above, your sole remedy shall be repair or replacement
as provided above. See provided Limited Warranty card
for additional terms and conditions.
INCIDENTAL OR CONSEQUENTIAL DAMAGE: In no
event E.T.I. Sound Systems, Inc. be liable for any incidental or consequential damages arising out of the use
or inability to use of any B-52 product, even if, E.T.I.
Sound Systems, Inc. or a B-52 dealer has been advised
of the possibility of such damages, or any other claim by
any other party. Some States do not allow the exclusion
or limitation of consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights and you may also have
other rights that may vary from State to State. See provided Limited Warranty card for additional terms and
conditions.
RETURN PROCEDURES: In the unlikely event that a
defect should occur, follow the procedure outlined below.
Defective products must be shipped together with a
proof of purchase, freight prepaid and insured to the
Authorized B-52 Dealer from whom you purchased the
product or directly E.T.I. Sound Systems, Inc. If a product must be returned directly to E.T.I. Sound Systems,
Inc. for warranty replacement/repair, a Return
Authorization Number (RAN) must be obtained from our
Customer Service Department prior to shipping the product. You may obtain RAN by calling 800-344-4ETI.
FOR YOUR PROTECTION: Please complete and mail
the Purchase Information Card within (10) ten days of
the date of purchase so that we may contact you directly in the event a safety notification is issued in accordance with the 1972 Consumer Product Safety Act. In
addition, we ask that you complete the brief questionnaire so me may analyze your answers and in this way,
help us evaluate our customer needs. See provided
Limited Warranty card for additional terms and conditions.
4
■
■
■
■
■
■
■
■
■
■
■
■
■
FEATURES
1/4” high input jack
Overdrive channel with gain 1, gain 2 with contour, 3-band EQ and level control
Clean channel with level control and 3-band EQ
Master volume and spring reverb
Foot switch for channel select, reverb on/off, gain select
Push switch for channel / gain select
Headphones line out
Effects send and return with level controls
Line out with level control
External speaker jacks
Ground lift switch
Custom built, heavy-duty 12” speaker
Detachable casters for easy transport
Output Power
SPECIFICATIONS
Input Impedance:
Maximum Input Level:
Power Consumption:
S/N Ratio:
Affects Send:
Nominal Output Level:
Effects Return Impedance:
Optimum Input Level:
Line Out:
Phones:
Equalization:
Dimensions:
Weight:
75 watts RMS @ 8 ohms
110 watts RMS @ 4 ohms
500K Ohms
-45dB
160 Watts
Greater Than 100 dB
Load Impedance 1K Ohm or Greater
-8 dB
100K Ohms
-8 dB
0dB / 1V RMS
60mW into 8ohm
Bass : +/- 15dB at 50Hz
Middle : +/- 10dB at 600Hz
Treble : +/- 18dB at 3KHz
25” (W) x 19” (D) x 11” (H)
51 lbs
E.T.I. Sound Systems is dedicated to product excellence and therefore continuously
attempts to improve each and every model we manufacture. This ongoing process
includes refinements in design, materials and workmanship, which may result in products that differ than those described in our literature. All features, specifications, and
prices are therefore subject to change without notice.
E.T.I. SOUND SYSTEMS, INC.
3383 Gage Avenue, Huntington Park, CA, 90255
Phone: 323-277-4100 Fax: 323-277-4108
National: 1-800-344-4ETI
Internet: www.B-52StealthSeries.com
E-mail: info@B-52PRO.com
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising