Roland SST-151 Owner's Manual PDF
Summary of Content for Roland SST-151 Owner's Manual PDF
OWNERS MANUAL
Thank you, and congratulations on your choice of the SST/SSW/SSM Speaker System.
Rolands SST/SSW/SSM speaker systems, designed, developed, and manufactured in the U.S.A., offer the ideal combination of excellent sound, superb design, and outstanding value.
The enclosures (except for the SSM-151) feature a trapezoidal design,
allowing them to be arrayed in radiating clusters.
The metal speaker grills and 3/4" plywood cabinets are designed to
withstand the rigors of professional use.
The tweeter features a built-in auto-reset protection circuit to prevent
problems from input overload before they start (not featured on the SSW-
351).
The SSM-151 can be oriented at two different floor angles (35 and 55 degrees),
allowing selection of the most appropriate angle for your particular stage
environment.
The crossover network components have been carefully selected to ensure
high input capacity and precise impedance characteristics.
Speakon NL4MP (speaker connectors) are featured to allow high-reliability
connections.
Oversized steel carrying handles help to provide exceptional portability.
* Speakon is a registered trademark of NEUTRIK.
Copyright 1997 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission of
ROLAND CORPORATION.
Before using this unit, carefully read the sections entitled: USING THE UNIT
SAFELY (p. 2) and IMPORTANT NOTES (p. 3). These sections provide
important information concerning the proper operation of the unit. Additionally,
in order to feel assured that you have gained a good grasp of every feature
provided by your new unit, this manual should be read in its entirety. The
manual should be saved and kept on hand as a convenient reference.
Features
ROLAND SPEAKER SYSTEM
SST-151/251 SSW-351 SSM-151
SST-151_e.book 1
2
USING THE UNIT SAFELY
001
Before using this unit, make sure to read the instructions below, and the Owners Manual.
..........................................................................................................
002a
Do not open or perform any internal modifica- tions 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 page.
..........................................................................................................
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.
..........................................................................................................
006
When using the unit with a rack or stand, the rack or stand must be carefully placed so it is level and sure to remain stable. If not using a rack or stand, you still need to make sure that any location you choose for placing the unit provides a level surface that will properly support the unit, and keep it from wobbling.
..........................................................................................................
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.
..........................................................................................................
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 page when:
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!)
..........................................................................................................
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.
Used for instructions intended to alert the user to the risk of death or severe injury should the unit be used improperly.
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 power- cord plug must be unplugged from the outlet.
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.
SST-151_e.book 2
3
101a
The unit should be located so that its location or position does not interfere with its proper venti- lation.
..........................................................................................................
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.
..........................................................................................................
108d: Selection
If you need to move the instrument, take note of the precautions listed below. At least two persons are required to safely lift and move the unit. It should be handled carefully, all the while keeping it level. Make sure to have a firm grip, to protect yourself from injury and the instrument from damage.
Disconnect all cords coming from external devices.
Remove the unit from the speaker stand.
In addition to the items listed under USING THE UNIT SAFELY, please read and observe the following:
Connection
Before making any connections, be sure all units in the system are OFF. Also be sure that all amplifier and
mixer volume controls are at MINIMUM.
Before connecting SST/SSW/SSM Speakers to an
external crossover
read the specification chart carefully.
Maintenance
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.
Never use benzine, thinners, alcohol or solvents of any kind, to avoid the possibility of discoloration and/or
deformation.
Additional Precautions
To avoid disturbing your neighbors, try to keep the units volume at reasonable levels (especially when it is
late at night).
To avoid possible breakdown, do not use the unit in a wet area, such as an area exposed to rain or other
moisture.
Important Notes
SST-151_e.book 3
4
1.
Before you make connections, make sure that the power of all equipment is turned off. Also make
sure that the volume controls on your amplifier and mixer are turned to the minimum position.
2.
Use speaker cables to connect the output terminals of the amplifier to the inputs of the speakers.
When connecting speakers, pay attention to the polarity (+/-) of the amplifier.
The SST/SSW/SSM speakers have a nominal impedance of 8 ohms. Check the recommended load impedance of your amplifier.
When connecting speakers in parallel, make sure that the polarity matches. Since the total impedance of all speakers will decrease if they are connected in parallel, check the recommended load impedance of your amplifier once again to make sure.
In order to get the best sound quality, please use thick and sturdy speaker cables. Avoid using cheap cables, or shielded cables
intended for use with a guitar. In order to achieve high-reliability connections, we recommend that you use Speakon
connectors (speaker connectors). When making Speakon connections, refer to the network circuit diagram in the
specifications.
These speakers are equipped with self-recovering protection circuitry designed to guard the tweeters
from excessively high input and abnormal signals. The circuit is tripped when the speaker is presented
with excessive input, thus preventing sound output from the tweeter; this does not indicate a
malfunction. In such instances, lower the amp volume; the tweeter function is restored automatically
after 5 10 seconds. Contact a Roland Service Center if the speaker function does not recover properly.
The Roland SST/SSW speakers are designed to allow multiple units to be combined to create high- output spaker clusters. The SSW-351 speaker system can be driven with a single amp when using its built-in crossover network, or driven with a multi-amp system when an external crossover is used, and is also the ideal subwoofer system for use in conjunction with a SST-151/251. In order to take full advantage of its performance and to protect the speakers, please read the following explanations carefully.
Connect the inputs of the SST-151/251/SSM-151 directly to your amplifier. If you wish to add an additional SST-
151/251/SSM-151, connect it in parallel. To connect the additional SST-151/251/SSM-151, use the second
PARALLEL INPUTS an an output.
Making Connections
SST-151/251/SSM-151
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
from the amplifier
(input impedance: 8 ohms)
Select any one of the input jacks.
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
from the amplifier
(combined input impedance: 4 ohms)
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
Basic Connection Parallel Connection
SST-151_e.book 4
5
The SSW-351 contains a built-in crossover network.
There are several ways in which an additional speaker can be connected to the SSW-351.
Since the HIGH FREQ OUTPUT is routed through the internal crossover network, a signal from which the low range has been cut will be sent to the connected speaker.
In this case, the combined impedance will be 8 ohms.
The PARALLEL INPUTS can be used as an output to connect an auxiliary woofer or a full range speaker. A full frequency range signal will be sent to the connected speaker.
In this case, the combined impedance will be 4 ohms.
A method to increase low-range sound pressure levels.
SSW-351
1.
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
INTERNAL CROSSOVER PARALLEL
INPUTS HIGH FREQ
OUTPUT DIRECT INPUT
FROM EXTERNAL
CROSSOVER INPUT ONLY
from the amplifier
For superior quality in sound reproduction, we recommend the use of a reverse polarity cable for this connection.
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
SSW-351 SST-151/251
2.
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
INTERNAL CROSSOVER PARALLEL
INPUTS HIGH FREQ
OUTPUT DIRECT INPUT
FROM EXTERNAL
CROSSOVER INPUT ONLY
from the amplifier
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
SSW-351 SST-151/251
The speakers can be driven by multiple amps very simply with the internal crossover network. When driving the speakers with two power amps (bi- amping), connect the speakers using the parallel input jacks.
The volume balance between the subwoofers (SSW- 351) and full-range speakers (SST-151/251) and be adjusted with the power amp level settings.
Using two power amps provides greater headroom when driving the speakers.
If you wish to use an external channel divider (crossover network) instead of using the built-in crossover network, make connections to the DIRECT INPUT. Pay attention to the crossover frequency of each speaker that is connected.
Carefully read the specifications before connecting an external channel divider (crossover network).
For the crossover frequency, we recommend frequencies between 100 Hz and 200 Hz.
3.
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
INTERNAL CROSSOVER PARALLEL
INPUTS HIGH FREQ
OUTPUT DIRECT INPUT
FROM EXTERNAL
CROSSOVER INPUT ONLY
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
SSW-351 SST-151/251
8 ohms 8 ohms
Amplifier
Amplifier
Parallel input connection
4.
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
INTERNAL CROSSOVER PARALLEL
INPUTS HIGH FREQ
OUTPUT DIRECT INPUT
FROM EXTERNAL
CROSSOVER INPUT ONLY
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
SSW-351 SST-151/251
8 ohms8 ohms
Amplifier LOW
Amplifier HIGH
Channel Divider
Crossover Network
SST-151_e.book 5
6
When used as a stage floor monitor, the SSM-151 can be set at two different floor angles.
When setting up monitor speakers, be sure to observe the following points in order to prevent the speakers from falling over (exercise caution particularly when using the 55- degree setup, as the speakers may topple more easily in this orientation than when set up 35 degrees).
* Do not sit or place feet on the speakers. * Do not place the speakers on unstable or inclined surfaces. * Do not use the speakers as steps.
* In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice.
Model SST-151 SST-251 SSW-351 SSM-151
Enclosure
Bass-reflex Bass-reflex Bass-reflex Bass-reflex
Speakers
12" Woofer + Horn Tweeter 15" Woofer + Horn Tweeter 18" Woofer 12" Woofer + Horn Tweeter
Power Handling
(rated)
*1 150 W 200 W 200 W 150 W
(max)
450 W 600 W 600 W 450 W
Frequency Response
58 Hz16 kHz 52 Hz20 kHz 45 Hz1.5 kHz 58 Hz16 kHz
Nominal Impedance
8 ohms 8 ohms 8 ohms 8 ohms
Sensitivity (1 W/1 m)
98 dB 100 dB 97 dB 98 dB
Crossover Frequency
4 kHz 1.5 kHz 200 Hz 4 kHz
Connectors
(1/4" phone)
Parallel Inputs x 2 Parallel Inputs x 2 Parallel Inputs x 2 Parallel Inputs x 2
Direct Input x 1
High Freq Output x 1
(Speakon NL4MP)
Parallel Input x 1 Parallel Input x 1 Parallel Input x 1 Parallel Input x 1
High Freq Output x 1
Weight
20 kg/44 lbs 31.8 kg/70 lbs 39.5 kg/87 lbs 14.5 kg/32 lbs
Dimensions
407 x 407 x 642 mm 572 x 407 x 762 mm 572 x 559 x 838 mm 620 x 400 x 360 mm
(W x D x H)
16 x 16 x 25-1/4 inches 22-1/2 x 16 x 30 inches 22-1/2 x 22 x 33 inches 24-7/16 x 15-3/4 x 14-3/16 inches
Accessory
OWNERS MANUAL OWNERS MANUAL OWNERS MANUAL OWNERS MANUAL
*1
EIA RS426A
Setting Up the SSM-151
5535
Specifications
Pin Diagram of Speakon NL4FC
* A Speakon male connectors used by this device is
sold separately.
2-
2+
1+
1-
SIGNAL TO SPEAKER SYSTEM
NL4FC PIN DIAGRAM
SST-151_e.book 6
TWEETER
WOOFER
3.3uF 4.7ohm
1.3mH
2.6mH
10uF
NL4MP
1+
1 -
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
TWEETER
WOOFER
2.2uF 2.7ohm
0.64mH 18ohm
0.64mH
2.2uF
NL4MP
1 -
1+ DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP.
IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
267(10-1/2")
6 4 2 (2
5 -1
/4 ")
4 0 7 (1
6 "
)
407(16 ")
432(17")
572(22-1/2")
76 2(
30 ")
40 7(
16 "
)
Network Circuit DiagramRear PanelDimensions
SSM-151
Network Circuit DiagramRear PanelDimensions
SSW-351
Network Circuit DiagramRear PanelDimensions
SST-251
Network Circuit DiagramRear PanelDimensions
SST-151
68uF
9mH
10uF
68uF
HIGH FREQ OUTPUT
PARALLEL INPUT
DIRECT INPUT
NL4MP 1+ 1 -
NL4MP 1+ 1 -
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
INTERNAL CROSSOVER PARALLEL
INPUTS HIGH FREQ
OUTPUT DIRECT INPUT
FROM EXTERNAL
CROSSOVER INPUT ONLY
DESIGNED BY ROLAND AUDIO DEVELOPMENT CORP. IN CALIFORNIA, USA
PARALLEL INPUTSFULL RANGE
620(24-7/16")400(15-3/4")
36 0(
14 -3
/1 6"
)
381(15")
572(22-1/2")
55 9(
22 ")
83 8(
33 ")
TW
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