APART REVAMP1120T User manual

REVAMP1120T
Instruction manual

Instruction manualREVAMP1120T
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REVAMP1120T manual

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CLASS-D POWER AMPLIFIER
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions
2. Keep these instructions
3. Heed all warnings
4. Follow all instructions
5. This professional device needs to be installed by qualified personnel only.
6. Danger: Exposure to high sound levels may cause a permanent hearing
loss. Individuals vary considerably to sound pressure level induced
hearing loss but nearly everyone will lose some hearing if exposed to
high sound pressure levels for a sufficient amount of time. Therefore
it is recommended that all persons exposed to equipment capable of
producing high sound pressure levels, such as this amplifier, be protected
by hearing protection while installing or operating this unit.
7. Make sure to only use power outlets conform to the power requirements
listed on the back of the unit.
8. Do not connect the inputs / outputs of amplifiers or consoles to any
other voltage source, such as a battery, mains source, or power supply,
regardless of whether the amplifier or console is turned on or off.
9. Do not drive the inputs with a signal level higher than that required to
drive equipment to full output.
10. Do not run the output of any amplifier back into another input.
11. This unit has NOT been designed for use in mobile applications, such
as: mobile discobars, mobile PA systems, Live bands, audio rental
systems,… Using it in such application will lead to product damages and
safety risks.
12. Do not use this apparatus near water
13. Clean only with dry cloth.
14. Do not block any ventilation openings. Install in accordance with the
manufacturer instructions.

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15. Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that produce heat.
16. Do not defeat the safety purpose of the polarised or grounding plug.
A polarised plug has two blades with one wider than the other. A
grounding plug has two blades and a third grounding prong. The wide
blade or the third prong is provided for your safety. Always use the
device with a grounded mains power plug. If the provided plug does not
fit into your outlet, consult an electrician for replacement of the obsolete
outlet.
17. Protect the power cord from being walked on, pinched or damaged.
Particularly at the plugs, connectors and at the point where they exit
from the apparatus.
18. Only use attachments/accessories specified by the manufacturer.
19. Unplug the apparatus during lightning storms or when unused for long
periods of time.
20. Use only with the cart, stand, tripod, bracket, or
table specified by the manufacturer, or sold with the
apparatus. When a cart or rack is used, use caution
when moving the cart/apparatus combination to avoid
injury from tip-over.
21. Refer all servicing to qualified 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 has been exposed to rain or moisture, does not operate
normally, or has been dropped.
22. WARNING: To reduce the risk of fire or electric shock, do not expose this
apparatus to rain or moisture. The apparatus shall not be exposed to
dripping or splashing and that objects filled with liquids, such as vases,
shall not be placed on apparatus.
23. WARNING: The mains plug/appliance coupler is used as disconnect
device, the disconnect device shall remain readily operable.

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CLASS-D POWER AMPLIFIER
24. This lightning flash with arrowhead symbol within an equilateral triangle
is intended to alert the user to the presence of non-insulated “dangerous
voltage” within the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock.
- Warning: To reduce the risk of electric shock, do not remove cover (or
back) as there are no user-serviceable parts inside. Refer servicing to
qualified personnel.
- The exclamation point within an equilateral triangle is intended to
alert the user to the presence of important operating and maintenance
instructions in the literature accompanying the appliance.
25. Protective earthing terminal. The apparatus should be connected
to a mains socket outlet with a protective earthing connection.
26. Correct Disposal of this product. This marking indicates that this
product should not be disposed with other household wastes
throughout the EU. To prevent possible harm to the environment
or human health from uncontrolled waste disposal, recycle it responsibly
to promote the sustainable reuse of material resources. To return your
used device, please use the return and collection systems or contact the
retailer where the product was purchased. They can take this product for
environmental safe recycling.
27. No naked flame sources, such as lighted candles, should be placed on
the apparatus.
28. Do not install this equipment in a confined or building-in space such
as a book case or similar unit, and remain a well ventilation conditions
at open site. The ventilation should not be impeded by covering the
ventilation openings with items such as newspaper, table-cloths, curtains
etc.

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Features
• 1 rack unit high
• High power class-D power amplifier module
• Toroidal 100 volt output transformer
• Single channel power amplifier
• Output power: 1 x 120 W @ 100 V or 70 V
• Dynamic output power: 1 x 120 W @ 4 Ω
• RMS power per channel: 1 x 120 W @ 4 Ω (500 msec)
• The output can be used in either LowZ or constant voltage
mode without changing settings.
• High thermal efficiency
• Signal clip indicator on the rear for fast and easy configuration
of the input gain.
• Universal switching power supply unit
• No cooling fan – maintenance free
• Low power consumption
• Integrated APC clip limiter
• Balanced euroblock input
• Unbalanced input on RCA with pass through
• Input level attenuator
• Switchable high pass filter
• Euroblock speaker output connectors with multiple taps: 35
volt, 50 volt, 70 volt, 100 volt and 4 ohm
• Extended speaker and amp protection circuits: over current
protect, over temperature protect, input overload
• Channel mute button and versatile LED status indicators
• Removable rack-ears
Note: the integrated APC clip limiter cannot be bypassed.

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CLASS-D POWER AMPLIFIER
1. Channel 1 overload led: when this led lights up, you are
overloading the input. Lower the input level immediately to
prevent distortion.
2. Channel 1 input gain setting: adjust the input gain to the
output level of your source. Make sure to avoid the clip led
lighting up at the strongest input peak level.
3. HPF on/off dipswitch for channel 1: set to on position to
enable the 250 Hz highpass filter (ideal for using 100 volt horn
speakers)
4. Channel 1 speaker output on 6 pole euroblock connector.
5. Channel 1 unbalanced input and link cinch connector: connect
the line level input signal for channel 1 here. Line level is 0 dBV.
Input and link connector are internally connected 1 on 1. This
connector is also used in bridge mode.
6. Channel 1 balanced input on 3 pole euroblock connector.
7. Mains inlet: connect the mains power cord here.
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Connections
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Operation
1. Removable rack ears for 19” rack mounting.
2. Power switch: after switching on the power, the power led will
light up after approx 1 second.
3. Power led
4. Channel 1 status led bar and mute switch: when the mute
switch is pressed, the orange “LIMIT – MUTED” led will light
up. This led will also light up when the internal limiter is
activated to avoid the amplifier from being overloaded by high
input signals. The “CLIP – OVERLOAD” led indicates that the
power amplifier is clipping: reduce the input signal at once
whenever this occurs. The green “SIGNAL -40 dB” led will light
up when an input signal is present.
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CLASS-D POWER AMPLIFIER
This amplifier relies on convectional cooling only. In normal
situations, overheating will not occur due to the class-D amplifier
topology. Since there are no cooling fans in the amplifier, make
sure the convectional cooling system can work properly. The unit
can be built in a 19 inch rack system, but it is forbidden to block
the ventilation holes provided. Therefore, it is absolutely necessary
to allow at least one free rack space or 44 mm above and beneath
the amplifier. Make sure the ambient temperature is between 0
and 35°C. Operating the unit beyond its normal limits may cause
overheating. Power amplifiers are hard workers, and their behaviour
is similar to human beings. In extreme conditions, human beings are
not able to perform efficiently. This also applies to amplifiers. It is
generally a bad idea to mount multiple heat generating units such
as amplifiers in the same rack. If necessary, use a forced ventilation
system in your mounting rack.
The mains fuse is located inside the unit. When the fuse is broken,
replace it with a fuse of the same current and voltage rating:
T 3.15 A L / 250 V. For qualified personnel only!
This unit has NOT been designed for use in mobile applications,
such as: mobile discobars and DJ setups, mobile PA systems, live
bands, audio rental systems, …
Note: Before using the amplifier for the first time, check the
impedance of your 100 volt speaker lines using the Apart IMPMET:
temporarily disconnect the speaker line from the amplifier and
measure the speaker line. Impedance @ 100 volt must be 83.3
ohms or more. This value corresponds to 120 watts @ 100 volt.
Important notice

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Technical specifications
output power RMS @ 100 volts 120 watts
output voltage tappings 100 - 70 - 50 - 35 volts - 4 ohms
RMS output power @ 4 ohms 120 watts
dynamic output power @ 8 ohms 60 watts
RMS output power @ 8 ohms 60 watts
minimum impedance load 4 ohms
output channels 1
line input balanced 1
line input unbalanced 1
input impedance 22 kΩ
input sensitivity 0 dBV / 1 V
S/N ratio > 97 dB A weighted
THD ch. 1/2 < 0.1% @ max power -6 dB / 4 Ω /
1 kHz A weighted
channel separation > 65 dB @ 1 kHz
frequency response 50 - 20 kHz
cooling system convectional
protection circuits over current, over temperature,
DC offset
operating temperature range 0 to 35°C
net weight product 4.6 kg
height- rack units (1U=44 mm) 1 U
depth (built-in) 230 mm

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CLASS-D POWER AMPLIFIER
depth (incl front) 239 mm
19" (483 mm wide) rack mounting yes
power consumption (max) 200 watts
power supply 100 - 240 V~ 50/60 Hz
power supply technology SMPS
power amp topology class-D

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Notes

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CLASS-D POWER AMPLIFIER
Notes

Notes

developed
by
Apart Audio nv
Industriepark Brechtsebaan 8 bus 1
2900 Schoten - Belgium
Company names, product names and trademarks are property of their
respective owners.
Apart-Audio specifications are subject to change without notice.