Amplificazioni Lombardi LAQUAD1200 User manual

AMPLIFICAZIONI
www.amplificazionilombardi.it
manual
LAQUAD1200

AMPLIFICAZIONI
www.amplificazionilombardi.it
Potentially dangerous situations can occur and cause
personal injuries.
Potentially dangerous situations can occur and cause
damage to the equipment.
Potentially dangerous situations can occur and cause
the equipment malfunction.
manual references
WARNING !
symbols
WARNING !
electric voltage equipment
LAQUAD1200 manual Version 1.0, 08/08/2017
© by Lombardi Amplificazioni all right reserved.
The data in this manual were precisely controlled, however their accuracy
cannot be guaranteed. Lombardi Amplificazioni takes no responsibility for
any errors or Imprecisions in this manual or about the products to which it
refers. As a manufacturer we reserve the right to modify the products under
the law provisions in order to improve the quality.
Amplificazioni Lombardi
via G.Mengozzi 21/b, cap.47011
Castrocaro Terme (FC) ITALY
Telephone - fax [phone]
general information
LAQUAD1200

AMPLIFICAZIONI
www.amplificazionilombardi.it
Please read the manual carefully and observe the
precautions to prevent and to avoid damages to the
equipment,
before using the products of Lombardi Amplification.
Please keep this manual for future references.
precautions for use
WARNING !
informazioni riguardanti l'uso degli
altoparlanti
In order to avoid electrical shock do not remove the top cover
of the device.
Contact qualified personnel only. Disconnect the power supply
when opening the device.
In order to reduce the risk of electrical shock do not use the
device near water.
Do not block the air exit. Do not place near heat source.
avoid damaging the power cord, do not step on it.
Disconnect the device in case of thunder-storm or when the
device is used for long period of time.
LAQUAD1200

AMPLIFICAZIONI
Technical Description
pagina 4 di 10
www.amplificazionilombardi.it
550 W
850 W
1250 W
1250 W
1400 W
10Hz - 50 KHz
10Hz - 50 KHz
Thermal separated each channel
< 0,01% from 20 Hz to 20 KHz
Over 500 from 20 Hz with 8 Ohm load
.75 Volt on output at 50 KOhm
>20 KOhm / >10 KOhm
-100 dB
< Noise from 20 Hz to 10 KHz
AB
01 XLR male - 01 XLR female (balanced)
01 Speakon
20000uF+20000uF
220 - 240 Volt
12Amaximum power (with all 4 channel operation)
2 two-speed fans (thermal) forced - 60mm fans
toroidal
2 RACK units
25 Kg
The Lombardi LAQUAD1200 is a 4 channels fully analog audio amplifier, class AB.
We designed this amplifier to be highly efficient and to maintain accurate audio
performances in the whole bandwidth even under stress condition.
In the Lombardi LAQUAD1200 there are 4 audio Amplifiers, 4 Crossover and 4
safeguard independent Optical Limiters for each channel. The high quality of its
components, the toroidal power supply and the handmade production guarantee the
highest standards of Lombardi’s made in Italy products. The audio amplifier
LAQUAD1200 was tested to the limit (impedance less than 2 •' )before it was placed
on the market.
LAQUAD1200
1KHz, 0.001% THD+N
8 Ohm Stereo
4 Ohm Stereo
2 Ohm Stereo
max RMS output (Volt) per channel
max peak output (Volt) per channel
frequency response
band width
protection
THD+N
dumping factor
input sensitivity and impedance
input impedance(Bal./Unb.)
noise
crosstalk
class
In-connector each channel
out-connector each channel
filter
power
supply
ventilation
transformer
dimension
weight
description

AMPLIFICAZIONI
frontal description
www.amplificazionilombardi.it
pagina 5 di 10
There are 2 holes in the frontal panel for
the rack set up. The space of each rack
consists of 2 units.
RACK set up
The handles make it possible for the
amplifier to be put inside or taken out
from the rack.
Handles
The ventilation grill must not be covered
so that it can allow for air flow to be
released.
Ventilation grill
This potentiometer regulates the channel
volume. It is important to keep it at
minimum when turning on and off the
device.
Volume power
bridge
Power on and off switch of the device.
Power on / off switch
LAQUAD1200
Thermal protection in case the
temperature is exceeded. Plus an output
protection that activates in case of
continuous flow or short circuit.
Protection
Bridge connection between channel A
and B (and/or C and D), in this case only
the A Speakon (or C) output is possible,
and the connection is 1+2+ (do not
connect less than 4 ohm load)
crossover
Filter (each channel):
filter 1 (113 hz) filter 2 (145 hz) filter 3
(3200 hz)
high cut (green) - low cut (red)
With this led turned on the amplifier is
used correctly.
Regular output signal
1 2 3
4
5 6 8
1
2
3
4
7
9
7
8 9
5
8
6

AMPLIFICAZIONI
rear description
www.amplificazionilombardi.it
pagina 6 di 10
The handles make it possible for the
amplifier to be put inside or taken out
from the rack.
Handles
Channel balanced input
1 mass 2 signal(+) 3 phase(-)
There are an XLR female and an XLR
male for the signal link
Channel balanced input/output
Amplified channel output
A: 1+ (+ chA) / 1- (- chA) / 2+ (+ ch
B) / 2- (- ch B) / Bridge 1+ (+) / 2+
(-)
B: 1+ (+ ch B) / 1- (- ch B)
C: 1+ (+ ch C) / 1- (- ch C) / 2+ (+
ch D) / 2- (- ch D) / Bridge 1+ (+) /
2+ (-)
D: 1+ (+ ch D) / 1- (- ch D)
Amplified channel output
Fuse for the device protection.
Fuse: 12,5 A
fuse
ground on / off switch
switch
POWERCON 230 V
Power supply
It is important not to cover this in order
to get an efficient release of the air flow
inside the final.
Ventilation output
LAQUAD1200
1 2
3
1
2
3
4
6
5
6
7
54
7
1200x4
2

AMPLIFICAZIONI
In ch A and C:
XLR balanced (cannon) female control panel
XLR balanced (cannon) male control panel
In ch B and D:
XLR (cannon) female control panel
XLR (cannon) male control panel
Amplified output ch A and C:
01 connector SPK (speakon) control panel
1 + 1 - 2 + 2 -
Amplified output ch B and D:
01 connector SPK (speakon) control panel
1 + 1 - 2 + 2 -
ingressi e connessioni
www.amplificazionilombardi.it
pagina 7 di 10
LAQUAD1200
XLR
male
1
2
3
IN
amp bal
3
2
1
XLR
female thermal
ch A
SPK
1
2
3
4
OUT
ch A
XLR
male
1
2
3
ch B ch B
crossover
SPK
1
2
3
4
XLR
male
1
2
3
3
2
1
XLR
female
ch C
SPK
1
2
3
4
ch C
XLR
male
1
2
3
ch D ch D
SPK
1
2
3
4
IN
amp bal
thermal
OUT
crossover
IN
amp bal
thermal
OUT
crossover
IN
amp bal
thermal
OUT
crossover

AMPLIFICAZIONI
specific use input
www.amplificazionilombardi.it
pagina 8 di 10
1 ground
2 signal
3 phase
input A-B-
C-D
1 / 3 -
2 +
Specific use of outputs
1+ +
1- -
2+ +
2- -
out A
o
out C
LAQUAD1200
1+ +
1- -
2 n.c.
2 n.c.
out B
o
out D
mixer
mixer
output linked amp
acoustic passive loudspeakers
the whole must not be
under 2 ohm
acoustic passive loudspeakers
the whole must not be
under 2 ohm
balanced
signal
unbalanced
signal

AMPLIFICAZIONI
dimension cabinet mm [pollici]
www.amplificazionilombardi.it
front
pagina 9 di 10
rear
sice
LAQUAD1200
480 [18,9]
380 [14,96]
440 [17,32]
8.7 [3,43]
480 [18,9]
8.7 [3,43]8.7 [3,43]
1200x4
2

AMPLIFICAZIONI
www.amplificazionilombardi.it
This device is in conformity with the requirements of the relevant
European Community directives with regard to the European
Electromagnetic Compatibility Directive (EMC) 89/336/EC as
amended by Directives 92/31/EC and 93/68/EC and the Low
Voltage Directive (LVD) 73/23/EC as amended by Directive
93/68/EC.
This device is in conformity with the European directive 2002/95/EC
as amended on the restriction of the use of certain hazardous
substances in electrical and electronic equipment.
Under Directive WEEE 2002/96/EC as amended by Directive
2003/108/EC this device is marked with a crossed-out wheeled
bin, as shown below. “INFORMATION TO USERS: In accordance
with article 13 of the Legislative Decree No 151 of 25 July 2005,
2002/95/EC and 2002/96/EC on the restriction of the use of certain
hazardous substances in electrical and electronic equipment and
of the waste disposal.
The symbol of the crossed-out wheeled bin indicates that the
product at the end of its useful live should be collected separately
from all other waste. The user should bring the end-of-life
equipment to the appropriate waste collection center of electrical
and electronic equipment, or deliver it to the retailer when they
buy a new equivalent equipment, at the ratio of one to one.
Separate collection of waste followed by its proper treatment and
proper waste disposal can greatly improve environmental and
health protection and promote the recovery and recycling of the
materials of the equipment.
Illegal waste dumping shall lead to the application of the
administrative penalties provided for in Legislative Decree No 22
/1997”.
European Community directives
LAQUAD1200
made in Italy