Roland SA-300 User Manual
Before using this unit, carefully read the sections entitled
• IMPORTANT SAFETY INSTRUCTIONS (page 2)
• USING THE UNIT SAFELY (page 3–5)
• IMPORTANT NOTES (page 6)
Owner’s Manual
Thank you, and congratulations on your choice of the Roland SA-300 Stage Amplifier.
Additionally, in order to feel assured that you have gained a good grasp of every
feature provided by your new unit, Owner’s manual should be read in its entirety.
The manual should be saved and kept on hand as a convenient reference.
Contents
IMPORTANT SAFETY INSTRUCTIONS............................ 2
USING THE UNIT SAFELY ................................................ 3
IMPORTANT NOTES.......................................................... 6
Main Features .................................................................... 7
Names of Things and What They Do ............................... 8
Control Panel............................................................................................. 8
Jack Panel ................................................................................................. 10
Making the Connections................................................. 13
Switching the Power On and Off ......................................................... 14
About Setting the Volume..................................................................... 14
About Stereo Link................................................................................... 15
About the Anti-Feedback Function................................ 16
Features of SA-300 ANTI-FEEDBACK ................................................ 16
How to Use Anti-Feedback ................................................................... 17
About the Use of Stacks ................................................. 18
About the Protection Circuit........................................... 18
Using a Speaker Stand ................................................... 19
Block Diagram ................................................................. 20
Main Specifications......................................................... 21
Copyright © 2005 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the
written permission of ROLAND CORPORATION.
IMPORTANT SAFETY INSTRUCTIONS
WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION: RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK,
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “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.
INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS.
IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS
WARNING - When using electric products, basic precautions should always be followed, including the following:
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not block any of the ventilation openings. Install in
accordance with the manufacturers instructions.
8. Do not install near any heat sources such as radiators,
heat registers, stoves, or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized 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 are provided for your safety. If the provided plug
does not fit into your outlet, consult an electrician for
replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched
particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.
11. Only use attachments/accessories specified
by the manufacturer.
12. Unplug this apparatus during lightning storms or when
unused for long periods of time.
13. 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.
2
For the U.K.
WARNING:
IMPORTANT:
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured markings identifying
the terminals in your plug, proceed as follows:
The wire which is coloured GREEN-AND-YELLOW must be connected to the terminal in the plug which is marked by the
letter E or by the safety earth symbol or coloured GREEN or GREEN-AND-YELLOW.
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
THIS APPARATUS MUST BE EARTHED
THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.
GREEN-AND-YELLOW: EARTH, BLUE: NEUTRAL, BROWN: LIVE
USING THE UNIT SAFELY
Used for instructions intended to alert
the user to the risk of death or severe
injury should the unit be used
improperly.
Used for instructions intended to alert
the user to the risk of injury or material
damage should the unit be used
improperly.
* Material damage refers to damage or
other adverse effects caused with
respect to the home and all its
furnishings, as well to domestic
animals or pets.
001
• Before using this unit, make sure to read the
instructions below, and the Owner’s Manual.
..........................................................................................................
001-50
• Connect mains plug of this model to a mains
socket outlet with a protective earthing
connection.
..........................................................................................................
002a
• Do not open or perform any internal modifications on the unit.
..........................................................................................................
003
• Do not attempt to repair the unit, or replace parts
within it (except when this manual provides
specific instructions directing you to do so). Refer
all servicing to your retailer, the nearest Roland
Service Center, or an authorized Roland
distributor, as listed on the “Information” sheet.
..........................................................................................................
004
• Never use or store the unit in places that are:
• Subject to temperature extremes (e.g., direct
sunlight in an enclosed vehicle, near a heating
duct, on top of heat-generating equipment); or
are
• Damp (e.g., baths, washrooms, on wet floors);
or are
• Humid; or are
• Exposed to rain; or are
• Dusty; or are
• Subject to high levels of vibration.
..........................................................................................................
007
• Make sure you always have the unit placed so it is
level and sure to remain stable. Never place it on
stands that could wobble, or on inclined surfaces.
..........................................................................................................
The symbol alerts the user to important instructions
or warnings.The specific meaning of the symbol is
determined by the design contained within the
triangle. In the case of the symbol at left, it is used for
general cautions, warnings, or alerts to danger.
The symbol alerts the user to items that must never
be carried out (are forbidden). The specific thing that
must not be done is indicated by the design contained
within the circle. In the case of the symbol at left, it
means that the unit must never be disassembled.
The ● symbol alerts the user to things that must be
carried out. The specific thing that must be done is
indicated by the design contained within the circle. In
the case of the symbol at left, it means that the powercord plug must be unplugged from the outlet.
008a
• The unit should be connected to a power supply
only of the type described in the operating
instructions, or as marked on the rear side of unit.
..........................................................................................................
009
• Do not excessively twist or bend the power cord,
nor place heavy objects on it. Doing so can
damage the cord, producing severed elements
and short circuits. Damaged cords are fire and
shock hazards!
..........................................................................................................
010
• This unit, either alone or in combination with an
amplifier and headphones or speakers, may be
capable of producing sound levels that could
cause permanent hearing loss. Do not operate for
a long period of time at a high volume level, or at
a level that is uncomfortable. If you experience
any hearing loss or ringing in the ears, you should
immediately stop using the unit, and consult an
audiologist.
..........................................................................................................
011
• Do not allow any objects (e.g., flammable
material, coins, pins); or liquids of any kind
(water, soft drinks, etc.) to penetrate the unit.
..........................................................................................................
3
012a
• Immediately turn the power off, remove the
power cord from the outlet, and request servicing
by your retailer, the nearest Roland Service
Center, or an authorized Roland distributor, as
listed on the “Information” sheet when:
• The power-supply cord, or the plug has been
damaged; or
• If smoke or unusual odor occurs
• Objects have fallen into, or liquid has been
spilled onto the unit; or
• The unit has been exposed to rain (or otherwise
has become wet); or
• The unit does not appear to operate normally
or exhibits a marked change in performance.
..........................................................................................................
013
• In households with small children, an adult
should provide supervision until the child is
capable of following all the rules essential for the
safe operation of the unit.
..........................................................................................................
014
• Protect the unit from strong impact.
(Do not drop it!)
• When using the SA-300 in combination with the SA300W, they can be used in a stacked configuration.
However, when units are stacked, due caution must be
observed to prevent any unit from falling.
For details, see page 18.
..........................................................................................................
• Do not insert hands, fingers, etc, into the openings in the
unit. In particular, if the unit is to used in households
with small children, always provide adult supervision to
ensure that children keep their hands and feet out of
these openings.
..........................................................................................................
015
• Do not force the unit’s power-supply cord to
share an outlet with an unreasonable number of
other devices. Be especially careful when using
extension cords—the total power used by all
devices you have connected to the extension
cord’s outlet must never exceed the power rating
(watts/amperes) for the extension cord. Excessive
loads can cause the insulation on the cord to heat
up and eventually melt through.
..........................................................................................................
016
• Before using the unit in a foreign country, consult
with your retailer, the nearest Roland Service
Center, or an authorized Roland distributor, as
listed on the “Information” sheet.
..........................................................................................................
026
• Do not put anything that contains water (e.g.,
flower vases) on this unit. Also, avoid the use of
insecticides, perfumes, alcohol, nail polish, spray
cans, etc., near the unit. Swiftly wipe away any
liquid that spills on the unit using a dry, soft
cloth.
..........................................................................................................
• Do not insert hands, fingers, etc, into the openings in the
unit. In particular, if the unit is to used in households
with small children, always provide adult supervision to
ensure that children keep their hands and feet out of
these openings.
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..........................................................................................................
4
Placement
351
• Using the unit near power amplifiers (or other equipment
containing large power transformers) may induce hum.
To alleviate the problem, change the orientation of this
unit; or move it farther away from the source of interference.
352a
• This device may interfere with radio and television
reception. Do not use this device in the vicinity of such
receivers.
352b
• Noise may be produced if wireless communications
devices, such as cell phones, are operated in the vicinity of
this unit. Such noise could occur when receiving or initiating a call, or while conversing. Should you experience
such problems, you should relocate such wireless devices
so they are at a greater distance from this unit, or switch
them off.
354b
• Do not expose the unit to direct sunlight, place it near
devices that radiate heat, leave it inside an enclosed
vehicle, or otherwise subject it to temperature extremes.
Also, do not allow lighting devices that normally are used
while their light source is very close to the unit (such as a
piano light), or powerful spotlights to shine upon the
same area of the unit for extended periods of time.
Excessive heat can deform or discolor the unit.
355b
• When moved from one location to another where the
temperature and/or humidity is very different, water
droplets (condensation) may form inside the unit. Damage
or malfunction may result if you attempt to use the unit in
this condition. Therefore, before using the unit, you must
allow it to stand for several hours, until the condensation
has completely evaporated.
356
• Do not allow rubber, vinyl, or similar materials to remain
on the unit for long periods of time. Such objects can
discolor or otherwise harmfully affect the finish.
359
• Do not paste stickers, decals, or the like to this instrument.
Peeling such matter off the instrument may damage the
exterior finish.
• During operation, this device must be placed at a distance
of no less than 20 cm from any walls.
103a
• At regular intervals, you should unplug the
power plug and clean it by using a dry cloth to
wipe all dust and other accumulations away from
its prongs. Also, disconnect the power plug from
the power outlet whenever the unit is to remain
unused for an extended period of time. Any
accumulation of dust between the power plug
and the power outlet can result in poor insulation
and lead to fire.
..........................................................................................................
104
• Try to prevent cords and cables from becoming
entangled. Also, all cords and cables should be
placed so they are out of the reach of children.
..........................................................................................................
106
• Never climb on top of, nor place heavy objects on
the unit.
..........................................................................................................
107a
• Never handle the power cord or its plug with wet
hands when plugging into, or unplugging from,
an outlet.
..........................................................................................................
108a
• Before moving the unit, disconnect the power
plug from the outlet, and pull out all cords from
external devices.
..........................................................................................................
109a
• Before cleaning the unit, turn off the power and
unplug the power cord from the outlet.
..........................................................................................................
110a
• Whenever you suspect the possibility of lightning
in your area, pull the plug on the power cord out
of the outlet.
..........................................................................................................
119
• The cooling vents on either side of the unit may
become hot, so take care to avoid burns.
..........................................................................................................
120
• Always turn the phantom power off when
connecting any device other than condenser
microphones that require phantom power. You
risk causing damage if you mistakenly supply
phantom power to dynamic microphones, audio
playback devices, or other devices that don’t
require such power. Be sure to check the specifications of any microphone you intend to use by
referring to the manual that came with it.
101a
• The unit should be located so that its location or
position does not interfere with its proper ventilation.
..........................................................................................................
102a
• Always grasp only the plug on the power-supply
cord when plugging into, or unplugging from an
outlet.
..........................................................................................................
(This instrument’s phantom power: 48 V DC, 10 mA Max)
..........................................................................................................
121
• Do not remove the speaker grille and speaker by
any means. Speaker not user replaceable. Shock
hazardous voltages and currents are present
inside the enclosure.
..........................................................................................................
5
IMPORTANT NOTES
291b
In addition to the items listed under “IMPORTANT SAFETY INSTRUCTIONS” and “USING THE UNIT SAFELY” on pages 3
and 5, please read and observe the following:
Power Supply
301
• Do not connect this unit to same electrical outlet that is
being used by an electrical appliance that is controlled by
an inverter (such as a refrigerator, washing machine,
microwave oven, or air conditioner), or that contains a
motor. Depending on the way in which the electrical
appliance is used, power supply noise may cause this unit
to malfunction or may produce audible noise. If it is not
practical to use a separate electrical outlet, connect a
power supply noise filter between this unit and the
electrical outlet.
307
• Before connecting this unit to other devices, turn off the
power to all units. This will help prevent malfunctions
and/or damage to speakers or other devices.
308
• Although the LEDs are switched off when the POWER
switch is switched off, this does not mean that the unit has
been completely disconnected from the source of power. If
you need to turn off the power completely, first turn off
the POWER switch, then unplug the power cord from the
power outlet. For this reason, the outlet into which you
choose to connect the power cord’s plug should be one
that is within easy reach and readily accessible.
Maintenance
401a
• For everyday cleaning wipe the unit with a soft, dry cloth
or one that has been slightly dampened with water. To
remove stubborn dirt, use a cloth impregnated with a
mild, non-abrasive detergent. Afterwards, be sure to wipe
the unit thoroughly with a soft, dry cloth.
402
• Never use benzine, thinners, alcohol or solvents of any
kind, to avoid the possibility of discoloration and/or
deformation.
Additional Precautions
553
• Use a reasonable amount of care when using the unit’s
buttons, sliders, or other controls; and when using its jacks
and connectors. Rough handling can lead to malfunctions.
556
• When connecting / disconnecting all cables, grasp the
connector itself—never pull on the cable. This way you
will avoid causing shorts, or damage to the cable’s
internal elements.
557
•A small amount of heat will radiate from the unit during
normal operation.
558a
• To avoid disturbing your neighbors, try to keep the unit’s
volume at reasonable levels. You may prefer to use
headphones, so you do not need to be concerned about
those around you (especially when it is late at night).
559a
• When you need to transport the unit, package it in the box
(including padding) that it came in, if possible. Otherwise,
you will need to use equivalent packaging materials.
561
• Use only the specified expression pedal (EV-**; sold
separately). By connecting any other expression pedals,
you risk causing malfunction and/or damage to the unit.
562
• Use a cable from Roland to make the connection. If using
some other make of connection cable, please note the
following precautions.
• Some connection cables contain resistors. Do not use
cables that incorporate resistors for connecting to this
unit. The use of such cables can cause the sound level
to be extremely low, or impossible to hear. For information on cable specifications, contact the manufacturer of the cable.
• Wrap the power cord around the cord hook when transporting or storing the unit.
6
Main Features
The SA-300 is a lightweight yet powerful stage amp, which functions as a combo amp while featuring full 2.1-channel stereo
compatibility.
High Power
This combo amp has an output of 350 W (75 W + 75 W stereo, 200 W subwoofer).
4-Channel/Full Stereo Input Compatibility
The SA-300 features four input channels, all of which handle stereo input. Additionally, all are compatible with microphones
as well as line-level equipment. The SA-300 also provides phantom power for two mic inputs.
Simple Setup
The mixer, amp, and speakers are integrated into a single unit, eliminating the need for complicated and bothersome cable
connections.
Light, Compact, and Extremely Portable
All speakers are newly developed custom speakers built from new materials. Midrange and high-frequency sounds are
played through a 6.5” coaxial 2-way speaker, with a 12” woofer handling the low end. Both speakers succeed in reducing
weight to half that of previous models (as compared with previous Roland products). Development of improved, more
powerful magnets than in previous products has resulted in greater efficiency and quick response. Additionally, use of ClassD power amps for high energy conversion efficiency and switching power supplies reduces generation of unnecessary heat,
thus permitting use of smaller, lighter power transformers and heat sinks.
Plus, the cabinet separates into compact upper and lower units for easy carrying.
Newly Developed Anti-Feedback Function (Pre-Detection)
Conventional monitor amps have always presented the risk of feedback when the amp is placed directly behind the
performer, so these amps are not set up directly behind vocalists (or MCs). The SA-300’s newly developed pre-detecting antifeedback function resolves this problem.
Wide Variety of Effects
The SA-300 features great effects such as a voice enhancer, reverb, and an easy-to-operate delay for use with microphones.
You also get 3-band EQ, a “Wide” function, which provides expanded presence; and a low boost function, which emphasizes
the extreme low end.
Foot Control Function
You can connect an expression pedal and use the pedal to control the volume. You can also connect a foot switch to switch
the muting and effects on and off.
New Stereo Link Function
The Stereo Link function allows you to connect two SA-300s together and use them as independent left and right stereo
speakers. What’s more, you can use the input channels on both SA-300s, giving up to eight inputs.
7
Names of Things and What They Do
Control Panel
fig.01-01
1 2
3
14
7 8 9
15
5
6
Channel Controls (CH 1–4)
1. INPUT SELECT Button
Use this button to select MIC or LINE input.
This switches the input to match the connected device
(mic or line-level device).
The MIC indicator lights when MIC is selected; when
LINE is selected, the LINE indicator lights.
2.
VOICE ENHANCER Button (CH 1, CH 2)
This switches the Voice Enhancer effect on and off when
the input is set to MIC.
Switching this on enables you to give the sound a clearer
contour and make vocals more prominent.
3. REVERB/DELAY Knob (CH 1, CH 2)
You can switch between reverb and delay by adjusting
the knob position.
When not using reverb or delay, set the knob to “OFF.”
The reverb and delay position on the scale shown on the
panel is approximate. Listen to confirm the effect as you
adjust the amount of effect applied.
4. REVERB Knob (CH 3, CH 4)
This adjusts the amount of reverb.
When not using reverb, set the knob to “OFF.”
4
1011 12 13
5. VOLUME Knobs
These adjust the volume levels of the channels.
* To minimize noise as much as possible, we recommend
turning the VOLUME knob for any channel not being used to
0 and setting INPUT SELECT to LINE.
6. ANTI-FEEDBACK (CH 1, CH 2)
This automatically detects and eliminates acoustic
feedback.
For further instructions on how to use anti-feedback,
refer to “About the Anti-Feedback Function” (p. 16)
ON/OFF Button
Press this button to turn the function on.
When switched on, the indicator lights, and the system
automatically works to prevent sudden feedback, as well
as feedback that occurs during quiet stretches.
SWEEP Button
When the ON/OFF button is set to ON, holding down
this button for one second or longer generates a
calibration signal from the speakers. The microphone
picks up the sound and the SA-300 analyzes the
characteristics of the microphone and the surroundings.
Based on the results of this analysis, the microphone and
environmental characteristics are compensated for
automatically, making it difficult for feedback to crop
up.
The indicator flashes while this automatic correction is in
progress. When the process is completed, the indicator
remains lit, signifying that the feedback prevention
function is in effect.
8
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