Vivaldi PSA300 User manual

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PSA300
DUAL POWER AMPLIFIER
Caution: Plea e
carefully
read thi manual before operating
Damage cau ed by mi u e i not covered by warranty
USER MANUAL

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SAFETY WARNINGS!
1. Read and keep these instructions.
2. Heed all warnings and follow all instructions.
3. Do not use this apparatus near water.
4. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
5. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
6. 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.
7. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point
where they exit from the apparatus.
8. Only use attachments/accessories specified by the manufacturer.
9. 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.
10. Unplug this apparatus during lightning storms or when unused for long periods of time.
11. 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.
12. 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.
13. Plug this apparatus to the proper wall outlet and make the plug to be disconnected readily operable.
14. 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.
15. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
16. An appliance with a protective earth terminal should be connected to a mains outlet with a protective earth connection.
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.

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Introduction
The PSA300 i a 2-channel cla D profe ional tereo power amplifier. Capable of providing 300 Watt per channel
at 4ohm , or a bridgeable output at 600 Watt make the PSA300 a olid choice for a variety of audio application .
Plea e follow the in truction found in the manual to familiarize your elf with the feature and operation of thi
amplifier. Should you have que tion or need a i tance during the in tallation or operation of the PSA300, plea e
contact your place of purcha e.
Safety Instructions
WARNING
- Do not expo e the unit to rain or wet environment, a it may re ult in fire or electric hock.
- U e the unit only with the pecified voltage on it. U ing a voltage higher than the pecified voltage may
re ult in fire or electric hock.
- Never open nor remove the unit ca e a thi may re ult in an electric hock. Refer all erving to qualified
per onnel only.
Precautions
- Do not place the unit in environment which contain high level of du t, heat moi ture or vibration.
- Do not place anything on top of the cabinet that may block the ventilation hole , a thi may re ult in
malfunction .
- rack mounting the amplifier, en ure there i adequate upport and that you firmly attach the front
mounting bracket to the rack frame.
- Alway provide adequate air-flow and ventilation. Never cover or block the cooling vent found at the rear
of the amplifier.
- Di connect the amplifier during lightning torm or when not u ed for long period of time.
Packing ist
PSA300 CAVO ALIMENTAZIONE
Panel Description

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(1) Channel A Volume Control (5) Channel A Clip Indicator
(2) Power On/Off Switch (6) Power Indicator
(3) Channel B Volume Control (7) Channel B Clip Indicator
(4) Channel A Signal Indicator (8) Channel 4 B Signal Indicator
Rear Panel
(9) Channel A Input/Parallel/Bridge (15) Channel A Binding Post Connector
(10) Mode Switch (Bridge/Stereo/Parallel) (16) Channel B Binding Post Connector
(11) Channel B Input (17) 12V Cooling Vent
(12) Ground ift Switch ( IFT/GND) (18) AC115/230V Mains Inlet & Fuse
(13) Channel A X R Output (19) Mains Voltage Selector (110-120V/220-240V)
(14) Channel B X R Output
Setup & Operation
ED Indicators
POWER: the BLUE LED i lit when the amplifier i ON
SIGNAL: the GREEN LED i lit when the amplifier en e an audio ignal
CLIP: the RED LED will fla h when clipping occur
Stereo Mode
Slide Mode Switch (10) to the STEREO etting. Connect Left and Right peaker to Channel A and Channel B Output
(via the XLR (13) / (14) or u e the binding po t connector (15) / (16)), connect line level Left and Right input to
the Channel A and Channel B input (9) / (11) via 6.35 mm jack or XLR. En ure that the combined load on each
channel i no le than 4 Ohm .
Parallel Mode
Slide Mode Switch (10) to the PARALLEL etting. Connect Left and Right peaker to Channel A and Channel B
Output (via the XLR (13) / (14) or u e the binding po t connector (13) / (14)), connect line level to the Channel
A input (9) via 6.35 mm jack or XLR. En ure that the combined load on each channel i no lower than 4 Ohm .

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Bridge Mode
Running the amplifier in Bridge mode i different than the other 2 mode . Bridge mode combine
both output channel to a ingle mono output. Thi mode enable you to provide double the power
to a ingle peaker compared to tereo or parallel mode .
The difference i that the peaker load mu t be no lower than 8ohm , whether u ing a ingle peaker
or combined load.
Bridge mode can be u eful e pecially when driving a large, high powered ubwoofer.
Slide Mode Switch (10) to BRIDGE etting.
Connect the peaker to the output u ing the 2 red binding po t or (1+,2+) CHA XLR output.
Connect the +wire to CHA+ and the – wire to CHB+.
Connect line level to the Channel A input (9) via 6.35mm jack or XLR.
IMPORTANT:
To prevent damage to the amplifier, en ure that the combined load i no lower than 8ohm .
Note: Switch the Operating Mode when the amplifier i POWERED OFF (No Blue LED).
Thermal Cooling
The VIVALDI PSA300 ha an internal thermal en or that will activate a mall cooling fan when the
amplifier reach an operating temperature over 50℃ (120ºF) .
The fan will continue operating until the amplifier ha reached normal operating temperature.
Volume Control
Stereo Mode: controlled by CH A and CH B Volume Control (1) / (3) independently.
Parallel Mode: controlled by CH A Volume Control (1).
Bridge Mode: controlled by CH A Volume Control (1).
Specifications
Output Power 2x150W into 8ohm , 2 x 300W into 4ohm
Bridge Output Power 600W into 8ohm
Total Harmonic Di tortion 0.01% / 1W / Channel
Minimum Speaker Impedance 4ohm
Signal-to-Noi e Ratio 95dB
Input Connection 6.35mm Combo Jack/XLR Balanced
Input Impedance 20KΩ (BAL/UNBAL)
Input Sen itivity 1VRMS@1KHz
Frequency Re pon e 20Hz - 20kHz
Product Weight 2.6kg/5.7lb
Product Dimen ion (LxHxP) 482x44x180mm (19"x7.1"x1.7")

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SERVICE
En ure the problem i not related to operator error, or y tem device that are external to thi unit. Information provided in the
trouble hooting portion of thi manual may help with thi proce . Once it i certain that the problem i related to the product
contact your warranty provider a de cribed in the warranty ection of thi manual.
WARRANTY
Warranty term of global three year . While the term and warranty may vary by country and may not be the ame for all product .
Term and condition of warranty for a given product may be determined fir t by locating the appropriate country which the
product wa purcha ed in, then by locating the product type.
VIVA DI SR by VIVA DI UNITED GROUP
Headquarter:
Via Enrico Fermi, 8
30020 Noventa di Piave (VE) - IT
Warehou e:
Via Edi on, 4
30020 Noventa di Piave (VE) – IT
phone [phone] - fax [phone]
e-mail [e-mail]
web www.vivaldigroup.it
© 2019 Vivaldi Srl
Vivaldi rl ongoing effort to improve it product , re erve the right to make technical and ae thetic change effectively without
obligation to notice.