Sonodyne SLA Series Manuel utilisateur

SLA SERIES

SLA 3003/ 3004/ 3006/ 3008/ 3010/ 3013

SLA 3104/3106

professional power ampliﬁers I owners manual

www.sonodyne.com

SLA SERIES page 1

IMPORTANT SAFETY INSTRUCTIONS

1. Read and follow these instructions.

2. Heed all warnings.

3. Do not stack objects on the ampliﬁer

4. Do not use this apparatus near water.

5. Do not switch power on or off rapidly

6. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

7. When cleaning the case, ﬁrst turn off the power plug. Wipe it with a dry cloth, and do not scrub with any

corrosive solvent.

8. Use a ﬁxed power outlet with correct capacity to supply power

9. Turn down the output levels on the front panel before switch-on.

10. When using dual, mono, or bridge mode, keep the switches on the rear panel in the position as shown

on the back panel, before operating the unit.

11. When operating at full power, the internal fan speed will increase and a slight noise will be audible,

which is normal.

12. If the ampliﬁer functions abnormally, turn it off, unplug the power cord and contact your dealer

13. Do not expose to water or ﬂuids. Do not place any ﬂuid containers on the unit.

14. Do not install near any heat sources such as radiators, stoves, or other apparatus (including ampliﬁers)

that produce heat.

15. Do not defeat the safety purpose of the polarized or grounding-type plug.. A grounding type plug has

two poles and a third grounding pole. The thick pole or the third prong is provided for your safety. If the

provided plug does not ﬁt into your outlet, consult an electrician for replacement of the outlet.

16. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles,

and the point where they exit from the apparatus.

17. Only use attachments/accessories speciﬁed by the manufacturer.

18. Unplug this apparatus during lightning storms or when unused for long periods of time.

19. Refer all servicing to qualiﬁed service personnel. Servicing is required when the apparatus has been

damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects

have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate

normally, or has been dropped.

The lightning ﬂash with arrowhead symbol within an equilateral triangle

is intended to alert the user to the presence of un-insulated “dangerous

voltage” within the product’s enclosure that may be of sufﬁcient

magnitude to constitute a risk of electric shock to persons

The exclamation point within an equilateral triangle is intended to alert

the user to the presence of important operating and maintenance

(servicing) instructions in the literature accompanying the product

EXPLANATION OF GRAPHICAL SYMBOLS

PLEASE READ CAREFULLY BEFORE PROCEEDING

Please keep this manual in a safe place for future reference.

WARNING

Always follow the basic precautions listed below to avoid the possibility of serious injury or even death from

electrical shock, short-circuiting, damages, ﬁre or other hazards. These precautions include, but are not

limited to, the following

POWER SUPPLY/POWER CORD

• Do not place the power cord near heat sources such as heaters or radiators, and do not excessively

bend or otherwise damage the cord, place heavy objects on it, or place it in a position where anyone

could walk on, trip over, or roll anything over it.

• Only use the voltage speciﬁed as correct for the device. The required voltage is printed on the name

plate of the device.

• Use only the supplied power cord/plug.

If you intend to use the device in an area other than in the one you purchased, the included power

cord may not be compatible. Please check with your Sonodyne dealer.

DO NOT OPEN

• This device contains no user-serviceable parts. Do not open the device or attempt to disassemble

the internal parts or modify them in any way. If it should appear to be malfunctioning, discontinue

use immediately and have it inspected by qualiﬁed Sonodyne service personnel.

WATER WARNING

• Do not expose the device to rain, use it near water or in damp or wet conditions, or place on it any

containers (such as vases, bottles or glasses) containing liquids which might spill into any openings.

If any liquid such as water seeps into the device, turn off the power immediately and unplug the

power cord from the AC outlet. Then have the device inspected by qualiﬁed Sonodyne service

personnel.

• Never insert or remove an electric plug with wet hands.

FIRE WARNING

• Do not put burning items, such as candles, on the unit. A burning item may fall over and cause a

ﬁre.

IF YOU NOTICE ANY ABNORMALITY

• When one of the following problems occur, immediately turn off the power switch and disconnect the

electric plug from the outlet. Then have the device inspected by Sonodyne service personnel.

- The power cord or plug becomes frayed or damaged.

- It emits unusual smells or smoke.

- Some object has been dropped into the device.

- There is a sudden loss of sound during use of the device.

• If this device should be dropped or damaged, immediately turn off the power switch, disconnect the

electric plug from the outlet, and have the device inspected by qualiﬁed Sonodyne service personnel

SLA SERIES page 2

PRECAUTIONS

Always follow the basic precautions listed below to avoid the possibility of physical injury to you or others, or

damage to the device or other property. These precautions include, but are not limited to, the following:

POWER SUPPLY/POWER CORD

• When removing the electric plug from the device or an outlet, always hold the plug itself and not the

cord. Pulling by the cord can damage it.

• Remove the electric plug from the outlet when the device is not to be used for extended periods of

time, or during electrical storms.

LOCATION

• Do not place the device in an unstable position where it might accidentally fall over.

• Do not block the vents. This device has ventilation holes at the front and back to prevent the internal

temperature from becoming too high. In particular, do not place the device on its side or upside

down. Inadequate ventilation can result in overheating, possibly causing damage to the device(s), or

even ﬁre.

• Do not place the device in a location where it may come into contact with corrosive gases or salt air.

Doing so may result in malfunction.

• Before moving the device, remove all connected cables.

• When setting up the device, make sure that the AC outlet you are using is easily accessible. If some

trouble or malfunction occurs, immediately turn off the power switch and disconnect the plug from

the outlet. When you are not using the product for a long time, make sure to unplug the power cord

from the wall AC outlet.

• When rack-mounting the device, always use two or more people. Attempting to lift the device by

yourself may damage your back, result in other injury, or cause damage to the device itself.

• Inadequate ventilation can result in overheating, possibly causing damage to the device(s),

malfunction, or even ﬁre.

CONNECTIONS

• Before connecting the device to other devices, turn off the power for all devices. Before turning the

power on or off for all devices, set all volume levels to minimum.

MAINTENANCE

• Remove the power plug from the AC outlet when cleaning the device.

HANDLING CAUTION

• Do not insert your ﬁngers or hands in any gaps or openings on the device (vents).

• Avoid inserting or dropping foreign objects (paper, plastic, metal, etc.) into any gaps or openings on

the device (vents). If this happens, turn off the power immediately and unplug the power cord from

the AC outlet. Then have the device inspected by qualiﬁed Sonodyne service personnel.

• Do not rest your weight on the device or place heavy objects on it, and avoid use excessive force on

the buttons, switches or connectors.

• Do not use speakers or headphones for a long period of time at a high or uncomfortable volume

level, since this can cause permanent hearing loss. If you experience any hearing loss or ringing in

the ears, consult a physician.

SLA SERIES page 3

CAUTION

BEFORE YOU GET STARTED WITH YOUR SHIPMENT

Your ampliﬁer was carefully packed in the factory to guarantee safe transport. Nevertheless, we recommend

that you carefully examine the packaging and its contents for any signs of physical damage, which may have

occurred during transit.

If the unit is damaged, please notify your dealer and the shipping company immediately, otherwise claims for

damage or replacement may not be granted.

INITIAL OPERATION

Be sure that there is enough space around the unit for cooling purposes and to avoid over-heating.

• The ampliﬁer is connected to the mains via the supplied cable.

• The ampliﬁer meets the required safety standards.

• Blown fuses must only be replaced by fuses of the same type and rating.

• Note that all units must be properly grounded. For your own safety, you should never remove any ground

connectors from electrical devices or power cables,or render them inoperative.

• Ensure that only qualiﬁed people installs and operate the mixing console. During installation and

operation, the user must have sufﬁcient electrical contact to earth; otherwise electrostatic discharges

might affect the operation of the unit.

NOTICE

To avoid the possibility of malfunction/damage to the product, damage to data, or damage to other property,

follow the notices below.

• HANDLING AND MAINTENANCE

• Do not use the device in the vicinity of a TV, radio, stereo equipment, mobile phone, or other

electric devices. Otherwise, the device, TV, or radio may generate noise.

• Do not expose the device to excessive dust or vibration, or extreme cold or heat (such as in direct

sunlight, near a heater, or in a car during the day), in order to prevent the possibility of panel

disﬁguration, unstable operation, or damage to the internal components.

• Do not place vinyl, plastic or rubber objects on the device, since this might discolor the panel.

• When cleaning the device, use a dry and soft cloth. Do not use paint thinners, solvents, cleaning

ﬂuids, or chemical impregnated wiping cloths.

• Condensation can occur in the device due to rapid, drastic changes in ambient temperature—when

the device is moved from one location to another or air conditioning is turned on or off, for example.

Using the device while condensation is present can cause damage. If there is reason to believe that

condensation might have occurred, leave the device for several hours without turning on the power

until the condensation has completely dried out.

• When turning on the AC power in your audio system, always turn on the power ampliﬁer LAST, to

avoid speaker damage. When turning the power off, the power ampliﬁer should be turned off FIRST

for the same reason.

• Always turn the power off when the device is not in use.

• CONNECTORS

• XLR-type connectors are wired as follows (IEC60268 standard): pin 1: ground, pin 2: hot (+), and

pin 3: cold (-).

SLA SERIES page 4

CAUTION

WELCOME •FEATURES

SLA SERIES page 5

Thank you for choosing SLA 3000 series of professional ampliﬁer. Please read this manual carefully and it

contains important and helpful information to get the most out of your new product.

1.1 OPEN-PACKAGE TO INSPECT

Check your new ampliﬁer out of the box. If damage is found, notify the dealer or the shipping company

immediately. The consignee can claim for damage caused during transportation.

1.2 FEATURES:

a. Professional power ampliﬁer with host of features and complete internal protection.

b. Class H design: SLA 3006, SLA 3008, SLA 3010 and SLA 3106

Class AB design: SLA 3003, SLA 3004 and SLA 3104

Class TD design: SLA 3013

c. Power supply design (models SLA 3003 – SLA 3010): Each channel of ampliﬁer is driven by a

separate power supply. This causes a lesser difference in output power between BCD mode (both

channels driven) and SCD mode (single channel driven) as compared to ampliﬁers using single

power supply for both channels. It also reduces crosstalk at higher frequencies. Moreover, for the

Class H ampliﬁers, the power supply has multiple supply rails which are selected by a real-time

control circuit that monitors the output continuously. The lowest rail voltage is always selected for

a certain output so that power dissipation is minimised.

d. Power output stage: The output stage employs a large number of matched complementary devices

in parallel having linear transfer characteristic for low distortion and high SOA guaranteeing safe

operation at elevated power levels.

e. Built-in intelligent limiter: There is a built-in limiter for each channel which works by sensing the

output and automatically limits the input signal in case of excessive clipping or overheat (dynamic

SOA control)

f. Heavy-duty Binding post and professional twist-lock connectors for speaker connection.

g. Exhaustive protection: The power ampliﬁer provides many different types of protection including

DC protection, internal fault protection, input overload protection, RF interference ﬁlter, output

short circuit protection, high frequency overload protection, overheat protection of heat sink and

transformer and mains input over current protection.

h. Cooling: There is heat tunnel formed by special-design copper heat sinks and high-speed fans.

The tunnel arrangement enhances the heat dissipation and isolates the rest of the ampliﬁer from

the heat sinks thereby providing a dust-seal. Dust ﬁlter on the front reduces ingress of dust.

i. Heavy-duty mains cable with 3 pin 15A plug is built into the unit to prevent loose connection

caused by detachable mains cable.

j. Heavy-duty steel chassis with handles allow the ampliﬁer to be slid in or out of a rack.

FRONT & TOP VIEWS

FRONT VIEW: SLA 3003/ 3004/ 3006/ 3008/ 3010/ 3013

FRONT VIEW: SLA 3104/ 3106

TOP VIEW

SLA SERIES page 6

445mm

430mm

NOTE: There should be

no blockage in the air

inlet and outlet

SLA SERIES page 7

FRONT PANEL

REAR PANEL

1 1 5

23 34 4

SLA 3003/ 3004/ 3006/ 3008/ 3010 3010/ 3013

SLA 3008/ 3010 3010/ 3013

SLA 3003/ 3004/ 3006

1. LEVEL CONTROLS:

Two calibrated and detent type potentiometers allow attenuation of signal levels.

2. PROTECT LED:

In the event of overload, DC at output, or overheat, the power ampliﬁer is muted to protect the unit and

the LED turns on.

3. CLIP LED:

Lights up when the output stage starts to clip. Always set level so that this LED lights up only at peaks,

to prevent damage to speaker from excessive clipping.

4. SIGNAL LED

Lights up at 1W output power

5. POWER SWITCH

Rocker type switch to turn the ampliﬁer on or off.

1 12

2 1 3 6 7 9

2 1 5 6 7 8

3 4 5 6 6 7 7 9810

SLA SERIES page 8

REAR PANEL

SLA 3003/ 3004/ 3006/ 3008/ 3010 3010/ 3013

1. INPUT

There are two such sockets, for Channel 1 and Channel 2. These are balanced XLR type input, for both

Channel 1 and Channel 2, having pin connections as per IEC60268 standard, printed on the back plate

and are as follows pin 1: ground, pin 2: hot (+), and pin 3: cold (-). The impedance in balanced mode is

20kΩ.

2. LINK

There are two such sockets, for Channel 1 and Channel 2. These are connected in parallel to the

respective input

3. MODE SWITCH

This selects between 3 types of operation – Dual, Mono and Bridge. Please see Fig 1.

• Dual mode – 2 inputs, 2 outputs. Signal is applied to all four channels and outputs are taken from

all four channels.

• Mono mode - 1 input, 2 outputs. Input channels 1 is active only. Signal applied to channel 1 appears

at output of Channels 1 and 2.

• Bridge mode – 1 input, 1 output. In bridge mode the outputs of two channels are combined to

deliver higher power into a single speaker load. Input channel 1 is active only. For signal applied

to channel 1, outputs of channels 1 and 2 are combined to have a single output at the socket

marked Dual/Bridge corresponding to Channel 1, or across the positive terminals of binding posts of

Channels 1 and 2, as shown on the back plate

4. SENSITIVITY SWITCH

Use this to select input sensitivity between 0.775V, 1.0V and 1.4V.

5. GROUND LIFT SWITCH

This disconnects the input socket ground from the chassis ground, in gnd-lift mode. It is sometimes

required to solve ground related problems in certain applications.

6. TWIST-LOCK SPEAKER SOCKETS

There are two such sockets, for Channel 1 and Channel 2. Pin connections for dual or mono mode are

shown in the back plate and are as follows - pin 1+ positive and pin1- negative, for both channels. For

bridge mode, output is taken from Channel 1 only and pin connections are as follows - pin 1+ positive

and pin 2+ negative.

7. BINDING POSTS.

There are a pair of binding posts, for Channel 1 and Channel 2. For dual or mono mode, the red terminal

is positive, and the black negative, for both channels. For bridge mode, the output is taken from the

positive terminal of each channel, as shown in the back plate. The red terminal of Channel is positive,

and the red terminal of Channel 2 is negative

8. FUSE

This is a safety device to protect against misuse and resulting ﬁre hazards. To replace fuse unscrew and

remove the burnt fuse. Use only the correct type of fuse for replacement. This is a slow-blow or time-

delay type fuse. The fuse rating is marked on the back-panel.

9. MAINS CABLE

This is a 3 pin mains cable with 15A plug. Connect this to an earthed 15A mains utility socket

SLA SERIES page 9

OPERATION

SLA 3003/ 3004/ 3006/ 3008/ 3010 3010/ 3013

4.1 POWER SUPPLY REQUIREMENTS

Each ampliﬁer has a different output power rating, please refer to the printing on rear panel. Make sure

the supply voltage is correct before connecting the ampliﬁer. Connecting the ampliﬁer to a mismatched

AC voltage can cause damage to the ampliﬁer.

The power supply requirement is: 230VAC/50 Hz

4.2 COOLING SYSTEM AND REQUIREMENTS

The ampliﬁer uses forced air cooling. Cool air is sucked in through two ventilation pockets on front

panel by fans mounted in the heat tunnel. This cools the heat sink. The "intelligent" variable speed

DC fan is controlled by a thermal circuit which senses the temperature of the heat sink. When the

ampliﬁer is turned on, the fan speed increases for a short time and then slows down; this indicates

that the thermal circuit is working properly. The fan speed will vary with the heat sink temperature. At

full power, the fan switches to high speed to cool the heat sinks. If the heat sink temperature exceeds

the maximum allowable temperature, the ampliﬁer will shut down.

NOTE: To ensure optimum cooling conditions, check that the front and rear of the ampliﬁer is

unobstructed and allows free ﬂow of air.

4.3 INPUT CONNECTION

Connect the balanced output of your source equipment to this input with a 3 pin XLR female to XLR

male cable. For details please refer to the section on back panel above. To loop the input to a second

ampliﬁer, connect the input of the second ampliﬁer to the LINK terminal.

4.4 OUTPUT CONNECTION

The speakers are connected using either binding posts or twist-lock type sockets. For details

please refer to the section on back panel above

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