Vivaldi Ulisse Series User manual

TWO CHANNEL CLASS-D AMPLIFIER
PMA2120 - PMA2240
SAFETY INSTRUCTIONS
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USER’S MANUAL

1. Read carefully and keep the present instructions.
2. Heed all warnings and safety instructions.
3. Do not use this apparatus in proximity of water.
4. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
5. 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 is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician
for replacement of the obsolete outlet.
6. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the
point where they exit from the apparatus.
7. Only use attachments/accessories specified by the manufacturer.
8. 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.
9. Unplug this apparatus during lightning storms or when unused for long periods of time.
10. 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.
11. This appliance shall not be exposed to dripping or splashing water and that no object filled with liquid such as
vases shall be placed on the apparatus.
12. Plug this apparatus to the proper wall outlet and make the plug to be disconnected readily operable.
13. Main plug is used as disconnected device and it should remain readily operable during intended use. In order to
disconnect the apparatus from the mains completely, the mains plug should be disconnected from the mains
socket outlet completely.
14. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
15. An appliance with a protective earth terminal should be connected to a mains outlet with a protective earth con-
nection.
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WARNING!
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT USE THE PLUG WITH
AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES
CAN BE FULLY INSERTED TO PREVENT BLADE EXPOSURE.
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE
THIS APPLIANCE TO RAIN OR MOISTURE.
TO PREVENT ELECTRICAL SHOCK,
MATCH WIDE BLADE PLUG TO WIDE SLOT, FULLY INSERT.

INTRODUCTION
Main Features
•Digital amplifier with switching technology power supply
•Class D reduced power consumption amplifier
•Small footprint and heating
•Rated power 120W, 240W per channel (2 channels)
•4-16Ωand 100V speaker outputs
•Balanced XLR input
•Separate gain control for each channel
•High pass filter on each channel
•Integrated auto stand-by function for energy saving
•Protection indicators, clips, input / output signal
•Protection against short circuit, overload, overheating, clips
•110-230V AC power supply
•DC 24V input for backup battery
Description
PMA2120 and PMA2240 class D amplifiers use switching power supply technology to offer reduced power consump-
tion and greater efficiency than traditional amplifiers (up to 85%), also limiting heat production. Moreover, thanks to the
compact chassis, the amplifier requires less installation space.
Class D amplifiers PMA2120 and PMA2240 have a rated power of 120W and 240W per channel respectively. Each
channel can be used independently. These amplifiers have power outputs both at 100V (high impedance) and at 4-16
Ohms, to suit both Public Address installations and Hi-Fi stereo systems.
These amplifiers feature two balanced euroblock terminal inputs with separate gain control (gain) and high-pass filters
that can be activated / deactivated using the panel dip switches.
The automatic stand-by function allows the power amplifiers to be turned off after one minute in the absence of an
input signal and the immediate restart when an input signal is detected.
PMA2120 and PMA2240 amplifiers can be powered with voltages from 115V to 230V, feature a DC 24V input for a
backup battery, and are equipped with a protection system against short-circuits, overloads, overheating, clips and DC
input current.
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Front Panel
1. PROTECTION
The protection indicator (orange) lights up when the amplifier goes into the "protection" status. The protection
could be caused by a short circuit or interruption of loudspeaker lines, an overload on the amplifier or an
excessive increase in the internal temperature (over 55 ° C). When the indicator comes on it means that an
intervention is necessary. If the problem has been solved, the indicator will go out. There are two separate
protection indicators, one for each amplifier channel.
2. CLIP
The clip indicator (red) lights up when the signal level input or output to the amplifier is too high. There are two
separate clip indicators, one for each channel.
3. INPUT LEVEL
The input signal indicator (green) lights up when an audio signal is input to the amplifier. There are two separate
input signal indicators, one for each channel.
4. OUTPUT LEVEL
The output signal indicator (green) lights up when an audio signal is input to the amplifier. There are two separate
output signal indicators, one for each channel.
5. POWER
The power indicator (blue) lights up when the amplifier is powered, both in AC and in DC (via battery).
1. POWER SWITCH
Power switch to turn on / off the amplifier.
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Rear Panel
1. POWER SUPPLY!
AC power cord for input from 110V to 230V.
2.
3. GAIN LEVEL!
Gain control is used to adjust the input sensitivity for each channel. There are two separate gain controls, one for
each channel.
4.
5. LINE INPUT!
The line input supports both balanced and unbalanced inputs with Euroblock type connectors. There are two
separate line inputs, one for each channel.
6.
7. 100V SPEAKER OUTPUT!
These speaker outputs should be connected to 100V loudspeaker lines, paying attention to the connection of the
positive and negative poles. There are two speaker outputs, one for each channel, on a Euroblock terminal.!
Note: do not invert the connection of the positive and negative poles. An incorrect connection could send the
amplifier in short-circuit protection.!
Note: do not connect low impedance speakers to 100V terminals. An incorrect connection could cause irreparable
damage to the speaker.
8.
9. DIP-SWITCH HI-PASS FILTER!
Through this dip-switch it is possible to activate / deactivate the high-pass filter function separately for each
channel.
10. DIP-SWITCH AUTO-STANDBY!
Through this dip switch it is possible to activate / deactivate the auto stand-by function separately on each
channel. When the function is enabled, the amplifier will go into stand-by if no input signal is detected for at least
2 minutes. When an input signal is present, the amplifier will immediately reactivate.
11. 4-16ΩSPEAKER OUTPUT!
These speaker outputs must be connected to low-impedance speakers (4-16Ω), paying attention to the
connection of the positive and negative poles. There are two speaker outputs, one for each amplifier channel, on
a Euroblock terminal.!
Note: do not invert the connection of the positive and negative poles. An incorrect connection could send the
amplifier in short-circuit protection.!
Note: do not connect high impedance speakers (100V) to the 4Ωterminals. An incorrect connection could cause
irreparable damage to the speaker.
12. 24VDC TERMINALS FOR BACK-UP BATTERY!
These sockets can be used to connect a back-up battery and supply power to the amplifier (24V) in case of an
emergency."
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SPEAKER CONNECTION
Disconnect the power plug before connecting the speakers. Below are shown the correct connections. Make sure the
total impedance is not less than 4 Ω.
- Connection of 4-16Ωspeakers
To connect conventional 4-16Ωspeakers, connect the positive (+) speaker to the terminal marked 4-16Ω. Connect the
negative (-) to the terminal marked COM.
- Connection of high impedance lines (100V)
To connect 100V speakers in parallel, connect the positive (+) speaker to the 100V terminal. Connect the negative
pole (-) to the terminal marked COM.
CONNECTION OF LOW IMPEDANCE SPEAKERS 4ΩSERIES CONNECTION OF 4ΩSPEAKERS (8ΩTOTAL)
"
100V SPEAKER LINES CONNECTION WRONG CONNECTION!
"
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BLOCK DIAGRAM
"
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TECHNICAL SPECIFICATIONS
Model
PMA2120
PMA2240
Description
2-Channel Class-D power amplifier
Rated power
2x120W
2x240W
Speaker outputs
4-16Ω& 100V
Frequency response
L/H Cut OFF 20Hz-20KHz (+1/-2dB)!
L/H Cut ON 70Hz-10KHz (+1/-3dB)
Inputs
2x 0.775V, 0dBu, Balanced Euroblock sockets
Input impedance
10KΩ
THD
<0.1% (1KHz/-3dBv, 100W)
S/N Ratio
>80dB
Crosstalk
>60dB, 1KHz, Max output
Power Consumption
300W
550W
Power Supply
AC 110V-230V, 50-60Hz
Dimensions
482(L)x420(P)x44(H) mm, 1RU Rack installation
Weight
6.5Kg
7.5Kg
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WARRANTY ITALY
The document that certifies the guarantee is the sales invoice. The validity of a product warranty will be verified exclu-
sively by the VIVALDI ASSISTANCE CENTER. The warranty period will last 12 months, from the delivery date. The
products and the packaging at the time of return must not be tampered with. VIVALDI SRL will endeavor to replace or
repair the component parts of the supply, which are found to be defective, provided that this does not depend on inex-
perience or negligence, tampering, fortuitous events or force majeure. Work relating to repairs or replacement under
warranty will be carried out by the VIVALDI CUSTOMER SERVICE (0421.307825 int. 4) in the factory, or on site (in
the terms indicated below), without this implying any responsibility for Vivaldi srl for direct or indirect damages suffered
by the customer because of this. Where operating reasons require repairing the equipment on site, the customer will
be responsible for the costs of transferring and remaining off-site for technical personnel, which will be charged with a
regular invoice. In the event of failure to comply with one or more of the above regulations, the warranty is void.
Notes: requests for authorization to return for repair must be sent by filling out the following form https://vivaldigroup.it/
it/rma. The VIVALDI CUSTOMER SERVICE ([email protected]) will reply by email, releasing the return authoriza-
tion number and indicating the procedure to be followed.
INTERNATIONAL WARRANTY
12 month warranty terms. The term and warranty may vary by country and may not be the same for all products. War-
ranty terms and conditions for a specific product can be determined first by locating the appropriate country where the
product was purchased, then identifying the type of product.!
!
VIVALDI SRL
Offices and Headquarters:
Via Enrico Fermi, 8
30020 Noventa di Piave (VE) - IT
Warehouse:
Via Edison, 4
30020 Noventa di Piave (VE) – IT
Tel. [phone] - Fax [phone]
e-mail [email protected]
web www.vivaldigroup.it
© 2019 Vivaldi Srl!
!
!
Vivaldi srl, in its constant commitment to improve its products, reserves the right to make technical and aesthetic changes without
prior notice.
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