CLASSIC HI-FI EQUIPMENT

The most common device used in high fidelity for all these missions, (not just the amplification of the original signal but its modification or correction in very different ways) and is the "control center" of the all system, is called integrated amplifier. This element brings together in one piece, at least two devices simpler: the preamplifier and amplifier or power stage.


The volume control.
 
Volume controls can be straight or rotation, and are noted as VOLUME, VOLUMEN or some appropriate abbreviation. In hi-fi equipment they are almost always the second type. The button control that handles the potentiometer usually takes some kind of scale fixed on the front of the amplifier. This scale can be simply reference (for example, marked linearly from 0 to 10) or indicate the attenuation introduced by the volume control. When the scale marks the signal attenuation always comes in decibels (dB) so that when the volume is null, attenuation marked is infinite (∞) and when the volume is maximum, the attenuation is 0 decibels (dB). All intermediate values are negative, and generally steps are marked whose difference is usually several decibels. 

Understanding the volume scale in db.

1) Integrated Stereo Amplifier Aurex (Toshiba) SB-820. 1975.



 
 1) Integrated Stereo Amplifier Victor-JVC JA-S9. 1975.








2)Integrated Stereo Amplifier Victor-JVC JA-S9. 1976.




 1)Integrated Stereo Amplifier Grundig V5000. 1980.




1)Leak Integrated Stereo Amplifier 3900A. 1976-78.









1) Denon Integrated Stereo Amplifier.PMA-701.1976-78. 






1) Sony Integrated Stereo Amplifier TA-F60.1979.







2)Sony Integrated stereo Amplifier TA-F70. 1979.



3)Sony Integrated Stereo Amplifier TA F5.1977.


4) Sony Integrated Stereo Amplifier TA-8650.1973.




 5)Sony Integrated Stereo Amplifier TA-F555ES.1982.






1) Sansui Integrated Stereo Amplifier AU 20000.1976.

 





2)Sansui Integrated Stereo Amplifier AU D907X.1979.
 







2)Pioneer Integrated Stereo Amplifier SA 7500.1975.






3)Pioneer Integrated Stereo Amplifier SA 7800II.1979.





5)Pioneer Stereo Amplifier A-70.1982.














 1)Technics Integrated Stereo Amplifier SU-3500.1975.






2)Technics Stereo Integrated DC Amplifier SU-V6X.1983.







 1)Kenwood DC Stereo Integrated Amplifier KA-7100.1978.




 
2)Kenwood DC Stereo Integrated Amplifier KA-8100.1979.



1)Marantz DC amplifier model 1152 DC.1977.



2)Marantz DC amplifier model 1180 DC.1977.



3)Marantz DC amplifier model 1300 DC.1978.





1)Accuphase Integrated Stereo Amplifier E303.1978.





1) Yamaha A-500 Stereo Integrated Amplifier.1982.