Neva Audio Prof fidelity A-360 User manual

KEY FEATURES
Dual Mono - each channel has its own transformer and power supply. In the series amplifiers Prof fidelity
land is not involved vformirovanii powerful output that provides even more high performance and outstanding
sound quality,com- pared with the previous models!
The modular design,the newestoriginal circuitry and manual technology provide high reliability.
Work inputkaskadovusilitelya outrightclass A and class A outputkaskadovvdinamicheskom,as well as the
lack of an overall negative feedback and output guarantees special ekstratokovy clean and clear sound even
when playing the mostcomplex audio signals.
Effective protection circuitusing a c-speed solid state thyristor speaker protection circuitreduces to zero
the risk of damaging them.
Performing complementary outputstages for circuituse of a large number transistors with an extended field
of security regimes are a guarantee reliable operation with any speaker system.
12
4 78 55
1- LEDs for CH A and CH B: Protect, Signal, Overload, Power. 2 Power switch. 3-plated output terminals
CH A and CH B. 4-switch signal ground of separation from shas- si. 5- Input Jacks CH A and CH B:
balanced XLR and 1/4 «. 6-input connectors CH A and CH B unbalanced RCA. 7- input selector balanced
- unbalanced. 8- Button mode selector stereo, parallel bridge.
Operating instruction
А-360; A-500
Prof fidelity

2. GENERAL INDICATION
Before turning vseti carefully read this manual.
Ventilation. The mostimportantcondition for the normal operation of the amplifier is ventilation. Amplifier
A-360; A-500 have convection cooling. Passage unrestricted flow air through the radiator amplifier is required.
For this reason notinstall anything directly above it.
Necessary space of 9 cm (2u) to 13.5 cm (3u) above and to the sides of the amplifier. Is not should be
installed directly above heat-generating equi pment. If you have a condition installation cramped,you need
an additional forced cooling.
Pickup Thermal protection during operation and flashing LED PROTECT, indicates insufficient impact
stuffy stream for normal operation of the amplifier. Never turn the amplifier vvertikalnom polozhenii.Pri storage
and transportation of the amplifier subjectitto shocks,dustand dampness.
The amplifiers are designed to operate with air temperature 10-35 ° C and the upper value 80% humidity
at 25 ° C.
When buying an amplifier requires verification of its performance. Make misrepresented that warranty
ticketis filled correctly. After storage room amplifier Cold-formed or shipping vzimnih conditions,allow it to
warm to room temperature vtechenii 2-3 hours withoutremoving from the package
3. BRIEF DESCRIPTION
Amplifiers moschosti A-360; A-500 is intended for use vsostave systems high qualitysound reproduction.
In amplifiers implemented advanced technical concepts. The amplifiers are low-profile, high performance
power amplifier and comprises two channels.
To ensure high reliability and minimize distortion, the output stage of the amplifier built princi ple
ekstratokovogo output that ensures maximum pulsed current of up to 50A. To ensure maximum reliability,the
amplifier are: protection from ko- outputshortcircuitof any duration; protection againstoverheating; protection
against radio frequency; protection speakers at startup, emergencies, overload protection from damaging
infrastructure baseband signal. To improve protection efficiencyof the speakers used onlyelectronic components,
mechanical relays are used.
4. FRONT PANEL
On the front panel of the amplifier power switch is located «POWER». Each channel has LED indi cators:
«OVERLOAD» - Overload;
«SIGNAL» - The presence of the signal at the output of the amplifier;
«PROTECT» -Protection;
«POWER» - Turn on the Power.
5. REAR PANEL
On the rear panel there are:
-attenyuatory inputfor the canal A and B;
-symmetric inputs «Balanced inputs CH A (CH B)» canal and B. Each channel has two connectors: XLR
-type and type Phone-Jack / 6,3 mm,connected in parallel;
-nesimmetrichnye RCA inputs for channels A and B. To enable the RCA inputs match press button 7
(see. Fig. p. 2).

stereo balanced XLR inputs
stereo unbalanced RCA inputs
parallel, symmetric XLR inputs
parallel,unbalanced RCA inputs
bridge, balanced XLR inputs only
«OUTPUT CH A (CH B)» - Outputs of channels A and B. As the output connectors are used 30 A gold-
plated screw terminals.
«GROUND LIFT» - grounding switch amplifier circuit - disconnect the midpoint amplifier circuit from
the body.
6. SAFETY INSTRUCTIONS
WARNING! Inside the amplifier has a life-threatening stress. To avoid accidents sluchaevzapreschaetsya
independently open the amplifier.
WARNING! To avoid the risk of electric shock or fire,do notexpose amplifier to rain or moisture,can not
include vseti withoutgrounding. Self-replacementfuse STRICTLY NOT !!!
Itis necessary to monitor the integrity of the insulation power cord.
7. GETTING STARTED
Connect the terminals of the amplifier with speaker system. The cross section of the cable
provodovsoedinitelnogo shall be notless than 1.5 kvmm atwire length up to two meters.
Plug the power cord having a grounding vevrorozetku. Rated supply voltage of the amplifier 220V a
frequency 50/60 Hz. Tolerances 190 ... 230 V power supply should not be less than 1.10 kW (220 V 5 A).
Provides free access of air to the amplifier!
Press the power switch. This should light up the LED «POWER», and and red LEDs «PROTECT» .Through
3 second fade LEDs «PROTECT». The amplifier is ready work
8. MAINTENANCE
Fuse replacement,repair and adjustmentof the amplifier is performed only by qualified specialistwho have
been instructed vservis center «Firm» Neva Audio. « With all the breakdowns and violations of work, even after
the warranty period, should contact the owner of the amplifier vservis center «Firm» Neva Audio»

9. WARRANTY
The warranty period amplifier «NEVA AUDIO» mesyatsevso 36 days of sale. During warranty period the
owner is entitled to a free repair on demand warranty card. The warranty will be invalid if:
a) the producthas been damaged byaccidentor misuse,or for other reasons is notthe resultdefektovusilitelya;
b) the serial number of your amplifier is changed,broken,or missing;
c) the warranty card is empty or missing.
«Neva Audio»
Russia, 197183, St.Petersburg, Sabirovskaya 37,
Phone/Fax: [phone]