MS8A (на англ.яз.)
OWNER'S MANUAL
MS8/MS8A/MS12S/MS12SA
SPEAKER ENCLOSURE
PASSIVE/ACTIVE MODELS
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All rights reserved to ALTO. All features and content might be changed
without prior notice. Any photocopy, translation, or reproduction of part of this
c
manual without written permission is forbidden. Copyright
2009 Seikaku Group
NF03258-1.1
www.altoproaudio.com
Version 1.1 Apr 2009
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CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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.
11. Move this Equipment only with a cart,
stand, tripod, or bracket,
This symbol, wherever used, alerts you to the
specified by the
presence of un-insulated and dangerous voltages
manufacturer, or
within the product enclosure. These are voltages that
sold with the
may be sufficient to constitute the risk of electric
Equipment. When
shock or death.
a cart is used, use
This symbol, wherever used, alerts you to
caution when
important operating and maintenance instructions.
moving the cart /
Please read.
equipment
combination to
Protective Ground Terminal
avoid possible
~ AC mains (Alternating Current)
injury from tip-over.
Hazardous Live Terminal
ON: Denotes the product is turned on.
12. Permanent hearing loss may be caused by
OFF: Denotes the product is turned off.
exposure to \ extremely high noise levels.
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The US. Government's Occupational Safety
Describes precautions that should be observed to
and Health Administration (OSHA) has
prevent damage to the product.
specified the permissible exposure to noise
1. Read this Manual carefully before operation.
level.
2. Keep this Manual in a safe place.
These are shown in the following chart:
3. Be aware of all warnings reported
with this symbol.
HOURS X DAY SPL EXAMPLE
4. Keep this Equipment away from water and
90 Small gig
8
moisture.
92 train
6
5. Clean it only with dry cloth. Do not use
95 Subway train
4
solvent or other chemicals.
97 High level desktop monitors
3
6. Do not damp or cover any cooling opening.
100 Classic music concert
Install the equipment only in accordance with2
the Manufacturer's instructions.
102
1,5
105
7. Power Cords are designed for your safety. Do1
110
not remove Ground connections! If the plug 0,5
does not fit your AC outlet, seek advice from0,25 or less 115 Rock concert
a qualified electrician. Protect the power
cord and plug from any physical stress to According to OSHA, an exposure to high SPL in
avoid risk of electric shock. Do not place
excess of these limits may result in the loss of
heavy objects on the power cord. This could heat. To avoid the potential damage of heat, it is
cause electric shock or fire.
recommended that Personnel exposed to
equipment capable of generating high SPL use
8. Unplug this equipment when unused for long hearing protection while such equipment is
periods of time or during a storm.
under operation.
9. Refer all service to qualified service personnel
only. Do not perform any servicing other than
The apparatus shall be connected to a mains
those instructions contained within the
socket outlet with a protective earthing
User's Manual.
connection.
10. To prevent fire and damage to the product, The mains plug or an appliance coupler is used
use only the recommended fuse type as
as the disconnect device, the disconnect device
indicated in this manual. Do not short-circuitshall remain readily operable.
the fuse holder. Before replacing the fuse,
make sure that the product is OFF and
disconnected from the AC outlet.
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To obtain Warranty Service, the buyer should first fill out and return
t h e
e n c l osed Warranty Registration Card within 10 days of the Purchase
D a t e . A l l
t h e
information presented in this Warranty Registration Card gives the
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acturer a better understanding of the sales status, so as to purport
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2 .1 In caseof returnforanywarrantyservice,pleasemakesurethatthe product is well packed in its original shipping carton, and it can protect your
unit from any other extra damage.
2 .2 Please providea copyof yoursalesreceiptor otherproofof purchasewith
the returned machine, and give detail
2.3 A brief description of the defect will be appreciated.
2.4 Please prepay all the costs involved in the return shipping, handling and
insurance.
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3.1 ? LTO warrants that this product will be free from any defects in materials and/or workmanship for a period of 1 year from the purchase date if
you have completed the Warranty Registration Card in time.
3.2 The warranty service is only available to the original consumer, who purchased this product directly from the retail dealer, and it can not be transferred.
3.3 During the warranty service, ? LTO may repair or replace this product at
its own option at no charge to you for parts or for labor in accordance with
the right side of this limited warranty.
3.4 This warranty does not apply to the damages to this product that
occurred as the following conditions:
? Instead of operating in accordance with the user's manual thoroughly, any
abuse or misuse of this product.
? Normal tear and wear.
? The product has been altered or modified in any way.
? Damage which may have been caused either directly or indirectly by another
3.5 In no event shall ? LTO be liable for any incidental or consequentialdamages.
Some states do not allow the exclu-sion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you.
3.6 This warranty gives you the specific rights, and these rights are
compatible with the state laws, you may also
have other statutory rights that may vary from state to state.
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:
1. INTRODUCTION
1
2. SPEAKER CABINET QUICK START
2
3. HOOKUP DIAGRAMS
4
4. WIRE CONNECTIONS
6
5. RIGGING
7
6. FREQUENCY RESPONSE
9
7. PANEL DESCRIPTION-MS8A/MS12SA
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8. PANEL DESCRIPTION-MS8/MS12S
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9. TECHNICAL SPECIFICATION
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10. WARRANTY
16
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Thank you very much for expressing your confidence in ? LTO products
b y
p u r c hasing
MS8/MS8A/MS12S/MS12SA speaker system. The MS series
cabinets are specifically designed for using in hi-quality performance
site and the precise sound reinforcement commercial place. uses
trapezium configuration which greatly decreases the resonance of the
standing wave in the cabinet. These cabinets uses hi-density matrix
spray-paint technics and the bottom bracket design which make
mounting quickly and Flexibly. The HF compression driver and vented LF
The MS8A/MS12SA speaker cabinets include some exclusive innovations
such as switch mode power supply and digital power circuitry (in
selected modes) that make them the lightest powered cabinets of this
The MS full range models include another Alto innovation: The
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Thanks to this circuitry, User can select 16 different tastes and
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The 16 kinds of sound presets especially thought for application with or
Enjoy your MS8/MS8A/MS12S/MS12SA speaker cabinet and make sure to
read this manual carefully before operation.
1
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Make all initial connections with all the equipment powered off, and ensure that
all the main volume controls are turned completely down.
MS12SA
12" Active Subwoofer Speaker Cabinets
Power System
350W Class D in EIAJ/300W Class D in Continuous
Frequency Response (-10dB)
47Hz-125Hz
1). Connect one side of the speaker cable to the output CHA/CHB or Binding
Post of your stereo power amplifier and the other side to the input socket
of your speaker cabinet.
Maximum SPL @ 1m
121dB Continuous/124dB Peak (Calculated)
Transducer Low
12" Woofer, 2.5"voice coil, with double ventilation
Active Crossover
HPF 80Hz under analog processor
Input Connector
L-R Input (Combo/ XLR-F) / L-R Link (2-XLR-M) /
L-R Output (2-XLR-M) Balanced (15kohm)
2). Complete other connections as illustrated.
3). Turn on your mixer first, then the stereo power amplifier.
Input Level
L-R Input Line 0dBu
External Control
Volume Control/ Phase Switch / HPF-80Hz By-Pass/ Power
ON with Green LED/ Clip Limiter with Red LED/ Ground Lift.
4). Turn up the volume controls of your amplifier to about 70%.
5). Use PFL function to get the proper input level for the mixer, and adjust
the main mix level control to manipulate the output level.
6). After using, turn off your stereo power amplifier first, then the mixer.
Speaker Cable
Power Supply
120-240 Volt, in Switching Power mode.
Enclosure Construction
15mm Plywood cabinet, glued and reinforced, resistant
black paint, metal grille, rubber foot.
Mounting
One metal standard pole-mount plus one metal handle
Dimensions (HxWxD)
370x 530 x 480 mm (14.57" x 20.87 x 18.90")
Net Weight
18.6kg / 41.01 lbs
Shipping Weight
20.8kg / 45.86 lbs
Speaker Cable
MS8
MS8
Stereo
D1
SIG CLIP PROT
18
16
20
6
500W×2
SIG CLIP PROT
18
22
24
26
12
CH1
28
30 (dB)
16
20
22
24
26
12
6
CH2
28
12"Passive Subwoofer Speaker Cabinet
Power System
300W continuous
Frequency Response (-10dB)
47Hz-160Hz
Sensitivity (1w @ 1mt)
96dB SPL
Impedance:
4 O (nominal)
Maximum SPL @ 1m
120dB continuous/123dB peak (Calculated)
Transducer Low
12" Woofer, 2.5"voice coil, with double ventilation
Passive Crossover
125Hz at 6dB/oct
Enclosure Construction
15mm Plywood cabinet, glued and reinforced, resistant
Input Connectors
INPUT-SPK NL-4 / OUTPUT-SPK NL-4, for Satellite Speaker
Mounting
One metal standard pole-mount plus one metal handle
Dimensions (HxWxD)
370x 530 x 480 mm (14.57" x 20.87 x 18.90")
Net Weight
18.10 kg / 39.90 lbs
Shipping weight
20.30 kg / 44.8 lbs
30 (dB)
Power Amplifier
Tripod
Mount
MS12S
Right
Left
Main Mix
Output
Main Mix
Output
Tripod
Mount
black paint, metal grille, rubber foot.
Mixer
2
1
5
9
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Frequency Response
Maximum SPL @ 1m
Coverage (HxV)
Transducer Low
Transducer High
Active Crossover
Input Connector
Input Sensitivity
External Control
Power Supply
Enclosure Construction
Mounting / Suspension
Dimensions (HxWxD)
Net Weight
Shipping Weight
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MS8A
Active System Type
Power System
2
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8" 2-way Active Modelling Loudspeaker
2-way Bi-Amp, with MODELLER
350W-LOW CLASS D/65W-HIGH CLASS AB in EIAJ
200W-LOW CLASS D/35W-HI CLASS AB in Continuous
MODELLER presets setting
120dB Continuous/123dB Peak (Calculated)
70°x 70°nominal
8" Woofer, 1.5"voice coil, with double ventilation
1" Neodymium on Spherical Horn (Tractrix contour)
2KHz under analog processor
LINE-COMBO/ LINK-XLR-F Balanced (15kohm)
Line +0dB
MODELLER with 16 Preset / Volume Control/ Power ON with
Green LED/ Clip Limiter with Red LED/ Ground Lift.
120-240 Volt, in Switching Power mode.
MDF wood cabinet, glued and reinforced, black painted, one metal
handle and rubber foot.
Two point for suspension, one metal pole-mount, optional bracket.
493 x 304 x 293 mm (19.41" x 11.97 x 11.54")
12.06kg / 26.53 lbs
14.56kg / 32.03 lbs
Make all initial connections with all the equipment powered off, and ensure
that all the main volume controls are turned completely down.
1). Connect one side of the signal cable at your audio mixer into output
left /right (with Stereo-Jack or XLR) and the other side of the cable into
the line input (Stereo-Jack) of your active speaker cabinet.
2). Connect the power cord to mains.
3). Turn on your mixer first, then the active speaker cabinets.
4). Turn up the volume control of the active speaker cabinets.
5). Use PFL function to get the proper input level for the mixer, and adjust
the main mix level control to manipulate the output level.
6). After using, turn off your active speaker cabinets first, then the mixer.
Signal Cable
Signal Cable
MS8
Passive System Type
Power System
Frequency Response (-10dB)
Sensitivity (1w @ 1mt)
Impedance:
Maximum SPL @ 1m
Coverage (HxV)
Transducer Low
Transducer High
Passive Crossover
Input Connectors
Enclosure Construction
Mounting / Suspension
Dimensions (HxWxD)
Net Weight
Shipping weight
8" 2-way Passive Speaker Cabinet
2-way Passive
150W continuous / 300W peak
67Hz-18kHz
94.5dB SPL
8 Ω(nominal)
116dB continuous/119dB peak (Calculated)
70°
x 70°
nominal
8" Woofer, 1.5"voice coil, with double ventilation
1" Neodymium on Spherical Horn (Tractrix contour)
2.25kHz at 12dB/oct, with HF protection
Two Parallel SPK NL-4 for INPUT/ THRU
MDF wood cabinet, glued and reinforced, black painted;
one metal handle and rubber foot.
Two point for suspension , one standard pole-mount plus a
optional bracket.
493 x 304 x 293 mm (19.41" x 11.97 x 11.54")
11.29kg / 24.84 lbs
13.79 kg / 30.34 lbs
MS8A
MS8A
Power Cord
Power Cord
Left
Tripod
Mount
Right
Main Mix
Main Mix
Tripod
Mount
Output
Output
Mixer
1
4
3
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LINE IN
MAIN OUT L
MAIN OUT R
LINE IN
MS8A
MS8A
(
1
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Receive the power coming from an external power amplifier.
(SPK +1/-1 connected; +2/-2 not connected)
(
2
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T
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Direct LINK for connect in parallel a second speaker cabinet.
(SPK +1/-1 connected; +2/-2 not connected)
MIXER
Tripod
Mount
Besides, the passive crossover included the electronic protection
on the driver.
Tripod
Mount
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MS12S
MS8
MIXER
SOUND REINFORCEMENT SPEAKER SYSTEM
SOUND REINFORCEMENT SPEAKER SYSTEM
POWER HANDLING:
MAIN OUT LEFT
CONTINUOUS - 150 Watts
PEAK - 300 Watts
MAIN OUT RIGHT
IMPEDANCE:
8 Ohm
MODEL
MODEL
SERIAL
SERIAL
DESIGNED AND DEVELOPMENT IN ITALY
LINE IN
LINK
LINK
LINK TO NEXT SPEAKER
LINE IN
POWER HANDLING:
CONTINUOUS: 300 Watts
IMPEDANCE: 4 Ohm
Max SPL: 120dB at 1mt
DESIGNED AND DEVELOPMENT IN ITALY
LINK TO NEXT SPEAKER
LINE IN
INPUT
THRU
INPUT
OUTPUT
LINK
MS8A
MS8A
(1)
Tripod
Mount
Tripod
Mount
Tripod
Mount
Tripod
Mount
(2)
(a)
(b)
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:
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2
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a). INPUT: Receive the signal coming from an external amplifier.
(SPK +1/-1 connected;+2/-2 not connected).
b). OUTPUT: Power output for satellite speaker, under passive crossover
filtered at 125Hz (SPK +1/-1 connected; +2/-2 not connected).
4
1
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SP
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UP
ACTIVE SUBWOOFERS: MS12SA
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(9) (10) (11)
LINE IN
(12)
LINE IN
(13)
MS8A
(6)
110 -120V
(7)
0dB
-
RIGHT
IN
SIGNAL
LIMIT
(8)
LEFT / MONO
MAX
VOLUME
GND
220 -240V
ON
8
LEFT / MONO
OFF
RIGHT
OUT
AC INPUT
PHASE
110-120V~50/60Hz
220-240V~50/60Hz
LEFT
MS8A
NORMAL
BY PASS
REVERSE
HPF 80Hz
RIGHT
POWER
Use only with a 250V fuse
AC FUSE
110-120V: T6.3AL
220-240V: T3.15AL
POWER CONSUMPTION: 350W
LINK
AC INPUT
POWER
MS12SA
Tripod
Mount
(3)
(4)
(5)
Tripod
Mount
MAIN OUT LEFT
MAIN OUT RIGHT
LINE IN LEFT/MONO
LINE IN LEFT/MONO
MS12SA
MODEL
SERIAL
DESIGNED IN ITALY
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ON-OFF main power switch
Input AC power socket with main fuse
(3)
MS12SA
MIXER
LINE IN
LINE IN
MS8A
MS8A
POWER, Green LED, indicate ON status
(4) BYPASS Switch Select the Hiqh pass filter or by pass
(5) Ground Lift Switch
MS12SA
(6) LINE IN RIGHT.ON XLR CONNECTOR
(7)
LINE IN LEFT/MONO ON COMBO CONNECTOR
(8) LINK LEFT/RIGHT ON XLR CONNECTOR
(9) SIGNAL/LIMIT, Red LED, indicate ON status
Tripod
Mount
LINE IN LEFT/MONO
MAIN OUT LEFT
LINE IN RIGHT
Tripod
Mount
MAIN OUT RIGHT
(10) VOLUME main power amplifier control
(11) PHASE Switch Reverse the Polarity of the subwoofer output
(12) OUT LEFT/RIGHT ON 2xXLR CONNECTOR
(13) POWER SWITCHUNG BUTTOM
1
2
5
MIXER
4
.
W
I
R
E
C
O
N
N
E
C
T
I
O
N
S
7
.
P
A
N
E
L
D
E
S
C
R
I
P
T
I
O
N
M
S
8
A
SP
OT
L
IG
HT
.
F
o
r
A
c
t
i
v
e
S
p
e
a
k
e
r
C
a
b
i
n
e
t
s
As to these circumstances,audio connections is mostly intended for
the signal flow,so,determine the wire configuration according to your
real application system and its connecting facility.Normally,you have
A
C
T
I
V
E
F
U
L
L
R
A
N
G
E
:
M
S
8
A
(1) BI-POLAR MAIN POWER SWITCH
(2) AC POWER SOCKET WITH MAIN FUSE
(3) GROUND SWITCH
(4) CLIP INDICATOR RED LED
(5) LINK OUT ON XLR CONNECTOR
(6) LINE INPUT ON COMBO CONNECTOR
(7) MAIN VOLUME CONTROL
(8) POWER SWITCHUNG BUTTOM
(9) PRESETS SELECTOR
Via this knob, you can select the right effect you wish to
perform. There are total 16 options for you, JAZZ CLUB+SUB,
VIRTICAL SUB, STAGE MONITOR, JAZZ CLUB, CONCERT
HALL+SUB, DISCO, VOCAL, ROCK & ROLL, FLAT, DRUM KICK,
ANTIRUMBLE, CONCERT HALL, ARENA+SUB, LOUDNESS, ROCK
(6) (5) (4) (7) (9)
9
8
10
7
11
12
6
5
0dB
13
4
INPUT
LINK
14
15
3
MAX
VOLUME
8
-
SIGNAL
LIMIT
2
1
16
PRESETS
BAL
POWER
1.FLAT
2.DRUM KICK
3.ANTIRUMBLE
4.CONCERT HALL
5.ARENA+SUB
6.LOUDNESS
7.ROCK & ROLL+SUB
8.ACOUSTIC
9.JAZZ CLUB+SUB
10.VIRTUAL SUB
11.STAGE MONITOR
12.JAZZ CLUB
13.CONCERT HALL+SUB
14.DISCO
15.VOCAL
16.ROCK & ROLL
(3)
MS8A
-.For Passive Speaker Cabinets
Please only use the power connectors to make connections with other signal source
equipment for the passive speaker cabinets. The power connector has four terminals:
1+, 1-, 2+, 2-.
1-
2-
1+
MODEL
2+
SERIAL
DESIGNED IN ITALY
AC INPUT
110-120V~50/60Hz
220-240V~50/60Hz
AC FUSE
100-120V: T6.3AL
220-240V: T3.15AL
POWER CONSUMPTION:350W
100 -120V
AC
INPUT
In our cabinets, only 1+/1- are used to connect the Speaker+/Speaker-, and 2+/2are not used.
6
220 -240V
ON
OFF
Use only with a 250V fuse
(2) (8) (1)
1
1
6
.
F
R
E
Q
U
E
N
C
Y
R
E
S
P
O
N
S
E
5
.
R
I
G
G
I
N
G
The MS8/MS8A speaker cabinet also provides the bracket for fixed installation
How to use them?
MS12SA
1).Inventory
Before beginning installation, inventory kit to items listed.
+110
+100
d
B
S
P
L
Item
I
II
III
+90
Q'ty
1PCS
2PCS
2PCS
Description
MH-8B Bracket / Wallmount
Screw, M10*30*1.5PH, Black ( in the cabinet)
Washer, Neoprene, 1.5t*f 35mm
+80
+70
+60
20
50
100
200
500
1k
2k
5k
10k 20k
Hz
MS12S
+110
+100
d
B
+90
S
P
L
+80
W
a
r
n
i
n
g
:
Installation should only be done by an experienced technician.
I
m
p
r
o
p
e
r
installation may cause serious injury . The surface where the
+70
+60
20
50
100
200
500
1k
2k
5k
10k 20k
2).Mounting the Bracket
Due to various construction methods and materials used today, the
h
a
r
d
w
a
r
e
for securing the bracket to the mounting surface is not supplied. It is
r
e
c
o
m
-
Hz
3). Removing the Shipping Hardware, Remove the flat head screws from
t h e
t o p
1
0
7
5
.
R
I
G
G
I
N
G
6
.
F
R
E
Q
U
E
N
C
Y
R
E
S
P
O
N
S
E
4).Choosing which slot to use there are three slots in each bracket arm.
u
s
e
the forward slot (as shown)when the cabinet is facing perpendicular
MS8A
+110
5).Hanging the Cabinet
A
.
Place a neoprene gasket on the bracket's lower arm. Center it on the
appropriate slot.
B
.
Position the cabinet between the bracket arms.
C
.
Align the bracket's top slot to the cabinet's M10 threaded hole.
D
.
Holding the cabinet in position, insert the screw through the bracket slot
and into the cabinet's top threaded hole and hand tighten.
E
.
Repeat step D through the bottom bracket hole.
F
.
Position cabinet and tighten both screws with a 5mm wrench.
+100
d
B
S
P
L
+90
+80
+70
+60
30
50
100
200
500
1k
2k
5k
10k 20k
Hz
MS8
+110
+100
d
B
S
P
L
+90
+80
+70
+60
20
8
50
100
200
500
1k
Hz
2k
5k
10k 20k
9
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