Vintronics Classic 25 Скачать руководство пользователя страница 7

 
 

 

                 Important Safety Instructions 

 

WARNINGS – 

Read the following instructions before proceeding: 

 

 

 
 
Read instructions: 

Retain these safety and operating instructions for future reference. Adhere to all     
warnings printed here and on the amplifier. Follow the operating instructions printed 
on this user guide. 

 

Do not remove cover:  

Operate the amplifier with its covers correctly fitted. Disconnect mains power by         

unplugging the power cord if the cover needs to be removed for visual inspections 
within. Also remove the power source when replacing valves. Refer this work to 
competent personnel only. 

 

Power sources: 

Connect the amplifier to a mains power  supply as marked on the rear of the unit 
only. Use the power cord with a sealed mains plug appropriate for your local mains 
supply as provided with your amplifier. If the provided plug does not fit into your 
outlet consult your service agent for assistance. 

 

Power cord routing:

      Route the power cord so that it is not likely to be walked on, stretched or pinched by  

items placed upon or against it. 

 

Grounding: 

Do not defeat the grounding and polarisation means of the power cord plug. Do not 
remove or tamper with the ground connection in the power cord. 

 

  

 

Water and moisture:    

To reduce the risk of fire or electric shock do not expose the amplifier to rain or 

moisture or use it in damp or wet conditions. Do not place containers of liquids on it 
which might spill into any openings. 

 

Ventilation: 

Do not obstruct the ventilation slots or position the amplifier where the air flow 
required for ventilation is impeded. If the amplifier is to be operated in a rack unit or 
flightcase ensure that it is constructed to allow adequate ventilation. 

 

Heat and vibration: 

Do not locate the amplifier in a place subject to excessive heat or direct sunlight as 
this could be a fire hazard. Locate the amplifier away from any equipment which 
produces heat or causes excessive vibration. 

 

Servicing: 

Switch off the equipment and unplug the power cord immediately if it is exposed to 
moisture, spilled liquid, objects fallen into the openings, the power cord or plug 
become damaged, during lightening storms, or if smoke, odour or noise is noticed. 
Refer servicing to qualified technical personnel only. 

 

Installation: 

Install the amplifier in accordance with the instructions printed in this user guide. Do 
not connect the output of power amplifiers directly to the inputs of the amplifier. Use 
audio connectors and plugs only for their intended purposes. 

 

                                                                  

  

RISK OF ELECTRIC SHOCK 

DO NOT OPEN

 

CAUTION 

ATTENTION: RISQUE DE CHOC ELECTRIQUE – NE PAS OUVRIR 

WARNING: This equipment must be earthed 

Содержание Classic 25

Страница 1: ...n and build standard Heavy rubber feet act as sound absorbers to protect against microphony of the valves Local companies have been used to provide the parts for this amplifier The power amplifier is based around two pairs of EL34 6CA7 tetrode output valves operating in a pure Class A push pull output configuration The output transformers have been specially designed and wound to our specification...

Страница 2: ... Signals from this stage are then fed into the EL34 push pull output stage Full power supply voltage is applied to these valves to maximise output power Conversion of the high voltage signal is then done in the output transformers They convert the high impedance high voltage into low impedance high current drive to the loudspeakers The input phase splitter and driver valves are separately heated f...

Страница 3: ...etter than 80dB Frequency Response 25 Hz to 25 KHz 0 9dB 0 8dB Power consumption 180 Watts Loudspeaker Loads 4 Ohm 8 Ohm Valves 2 x ECC82 3 x ECC83 4 x EL34 6CA7 Input Sensitivity 0 7V RMS Connections Inputs 4 x RCA Phono Outputs 2 x 4mm Terminal Posts Power IEC Mains inlet Weight 10 3 Kilos Dimensions 420 x 290 x 150 mm High TYPICAL VALUES MEASURED WITH LINDOS LA101 2 TEST SET ...

Страница 4: ... 3dB 3dB 0 10 20 30 40 50 60 70 80 90 100 200 500 1K 10K 11 12 13 14 15 16 17 18 19 20K FREQUENCY RESPONSE ...

Страница 5: ...two output Impedances 4 ohm and 8 ohm Choose the output connection which best suits your speakers Normally speakers are marked with their impedance and this can be measured with an Ohm meter So the loudspeaker would connect to the Black negative terminal and either the yellow 4Ω or red 8Ω terminal Use generous guage cable to the loudspeakers This will aid with losses between the amplifier output a...

Страница 6: ...se try and use the highest quality manufacturer of the valves Limited One Year Warranty This product is warranted to be free from defects in materials or workmanship for a period of one year from the date of purchase by the original owner To ensure a high level of performance and reliability for which this equipment has been designed and manufactured read the user guide before operating In the eve...

Страница 7: ...d moisture To reduce the risk of fire or electric shock do not expose the amplifier to rain or moisture or use it in damp or wet conditions Do not place containers of liquids on it which might spill into any openings Ventilation Do not obstruct the ventilation slots or position the amplifier where the air flow required for ventilation is impeded If the amplifier is to be operated in a rack unit or...

Страница 8: ...TED RESPONSE MEASURED AT OUTPUT TERMINALS AT 10 WATTS RMS OUTPUT INTO 8 OHM LOAD 30Hz 100Hz 400Hz 1KHz 6KHz 10KHz 15KHz 20KHz DISTORTION MEASURED AT 10 WATTS OUTPUT INTO 8 OHM LOAD 1KHz 100Hz CROSSTALK MEASURED AT 10 WATTS OUTPUT INTO 8 OHM LOAD 1KHz 10KHz ...

Страница 9: ...ngage with the pip is acceptable The valve is then pushed home into the socket carefully FOR EXPERIENCED QUALIFIED PERSONS ONLY If you have the necessary test equipment then remove the top plate from the Amplifier to expose the circuitry EXTREME CAUTION is required as there are FATAL VOLTAGES within the Amplifier unit Adjust the trimmer resistor R with a trimmer tool to obtain true linearity of a ...

Страница 10: ...E TP1 220 3 5V PK PK TP2 1 8 TP3 3 5 TP4 120 3 5V PK PK TP5 4 4 TP6 4 4 TP7 108 35V PK PK TP8 108 35V PK PK TP9 22 15Mv ripple at 100Hz no signal TP10 22 15Mv ripple at 100Hz no signal TP11 337 350V PK PK TP12 337 350V PK PK TP13 338 150V PK PK TP14 338 150V PK PK TP15 283 Negligible ripple TP16 308 10mV Ripple 100Hz TP17 339 800mV Ripple 100Hz TP18 9 45 TP19 3 2 AC VOLTAGE TP20 3 2 AC VOLTAGE TP2...

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