Inter-M DSA-100D User Manual
Operation Manual
Digital SR Amplifier
DSA-100D/DV
DIGITAL SR AMPLIFIER
Welcome
Welcome
A personal welcome to you from the management and employees of Inter-M
All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.
We sincerely trust this product will provide years of satisfactory service, but if anything is not to your complete
satisfaction, we will endeavor to make things right.
Welcome to Inter-M, and thank you for becoming part of our worldwide extended family!
This symbol is int ended to ale rt the user to the
CAutION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
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.
Caution: To prevent electric shock do not use this (polarized) plug with
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
*WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used near water(e.g.
near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken so than objects do
not fall and liquids are not spilled into the enclosure through openings.
*CLASS 2 WIRING (Adjacent to speaker terminal): The speaker output of this apparatus can exceed 10 Watts and could be a shock injury.
Connection to speakers should be performed by a skilled person.
*Do not install this equipment in a confined space such as a book case or similar unit.
*This apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*This apparatus shall be connected to a mains socket outlet with a protective earthing connection.
It has heed to be easy to disconnect the device. To disconnect the device from power, separate AC input cable from inlet or unplug the AC Cord.
*
CAutION
*These servicing instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing
other than that contained in the operating instructions unless you are qualified to do so.
NOtE
*This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will
be required to correct the interference at his own expense.
presence of uninsulated “dangerous voltage” within
the product’s enclosur e that ma y be of sufficient
magnitude to constitute a risk of electric shock to
persons.
This symbol is int ended to ale rt the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.
an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.
fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre inséré es à fond sans en lai sser aucune par tie à
découvert.
DIGITAL SR AMPLIFIER
Contents
Contents
Unpacking .......................................................................................................................................2
Installation
Environment....................................................................................................................................2
Important Safety Instructions.............................................................................................................2
Features............................................................................................................................................3
Front Panel ......................................................................................................................................4
Rear Panel .......................................................................................................................................6
Installation of Caution ...................................................................................................................9
Applications ..................................................................................................................................10
Block Diagram ..............................................................................................................................11
Specifications ................................................................................................................................13
How to install the rack ................................................................................................................17
Service............................................................................................................................................17
Warranty .......................................................................................................................................17
DSA-100D/DV
1
DIGITAL SR AMPLIFIER
Unpacking
Unpacking
Although your DSA-100D/DV is neither complicated nor difficult to operate, we recommend you take a few
minutes to read this brief manual and familiarize yourself with the important information regarding product
features, setup and operation.
As with most electronic devices, we strongly recommend you to retain the original packaging. In the unlikely
event the product must be returned for servicing, the original packaging (or reasonable equivalent) is required.
Installation
Installation
Environment
Never place this product in an environment which could alter its performance or reduce its service life. Such
environments usually include high levels of heat, dust, moisture, and vibration.
IMPORTANT SAFETY INSTRUCTIONS
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 dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s 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. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus.
When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. 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
DSA-100D/DV
S3125A
DIGITAL SR AMPLIFIER
Features
Features
- Compact Design
The DSA Series is a amplifier 100 watts x 2 of Power that is housed in half rack 1 RU compact chassis. Ideal
for applications where high power stereo amplification is required such as board room and class rooms.
- Professional Grade D-Class Amplifier and Switch Mode Power Supply (SMPS)
Class D amplifier offer improved total harmonic distortion with an increased signal to noise ratio of
professional grade sound quality. SMPS creates a high efficiency amplifier offering reduced power
consumption and low heat dissipation.
- APD (Auto Power Down)
The amplifiers automatically enter into a standby mode after 30 min when unit is not in active, it takes a
advantage of reducing power consumption.
The unit returns to operating status within 3 sec upon signal detection.
- ENERGY STAR - Low Power Compsumtion in STAND BY mode
In STAND BY mode, the unit only takes a less than 1W of electric power compsumtion which complies
with ENERGY STAR® standards.
- GAIN selection switch
Selectable proper input sensitivity of amplifier either +4dBu (1.2283V) or -20dBu (77.5mV)
- High Pass Filter (120Hz)
Built in High Pass Filter to protect the speaker against unwanted low frequency.
- Bridge-Mono Mode
Bridging allows power to be output at 200 watts.
- Power Mode Selection Switch
There are 3 selectable power mode switch (ON/REMOTE/OFF). When switch is selected as REMOTE, the
amplifiers can be remotely power ON/OFF control.
- Remote Power Connector
The remote power allows the amplifier to be turned on or off from a distance or other device via dry contact
closure.
- Front siganl and protection LED indicators
LED indicators for POWER, STAND BY, PROTECTION, SIGNAL and CLIP on the front panel give a easy
verification of operation status.
- Advanced Protection Circuitry
Advanced protection circuitry guards against overheating, shorted outputs, DC output, overloads.
- Balanced Input
This connection is used to ensure the lowest noise operation which eliminates the common noise from the cable.
- VCA (Voltage Control Amplifier) Control (Only DSA-100DV)
Voltage-controlled amplifier is an electronic amplifier that varies its gain depending on a control voltage. These
two terminals provide connection for an external potentiometer. When the potentiometer is connected, it allows
for remote control of the master volume level.
Note that individual input volume control positions limit the maximum output level adjustable with the remote
volume control.
DSA-100D/DV
3
DIGITAL SR AMPLIFIER
M
IN MAX
CH 2CH 1
CLIP
M
IN MAX
P
ROT POWER
STAND BY
SIG
D
SA
D
IGITAL SR AMPLIFIER
100D
1 3
2
4 5
Front Panel
Front Panel
1. VOLUME CONTROL
Turn the volume controls clockwise to increase gain and counterclockwise to decrease gain against each
channel.
2. OUTPUT SIGNAL LEVEL INDICATORS
The LEDS indicate the amplifier’s output signal levels.
- SIGNAL LED Illuminates green when signal is present at the input more then -25dB.
- CLIP LED illuminates red when there are excessive signal levels.
※ NOTE : The Cliping may damage the speakers and amplifier so when CLIP LED is on please lower the
volume level.
3. PROTECTION MODE INDICATOR
The amplifier features several types of protection circuitry to prevent damage during power-up or fault
conditions such as overheat, overload and a detection of DC output. PROTECTION LED illuminates when
any of these faults is detected. The output relays will disconnect the speaker loads when the protection
circuitry detects a fault condition. Once the specific fault has been corrected, the PROTECTION LED will be
turned off and The unit will be working normally.
Protect LEDs will illuminate for 2 to 3 sec during power-up process then after 2 to 3 sec PROTECTION LED
will be turned off and stay as normal condition to use.
4. COOLING VENTS
Air flow is front to back. DO NOT block front or rear air vents.
4
DSA-100D/DV
Loading...