Why does ?

[decks&cassettes]

Why does the label on the rear cabinet of the sharp gf 777 / 767 have higher watts than the 909/999/1000

777 reads as 60 watts
909/999/1000 read as 28 watts

I have been told they use the same amp but have never seen a 909 next to 777 to compare

 

[Stuzy]

Not sure, i have both and never checked....

 

[Radio raheem]

they sound the same, same amps etc i know this as i've had a 1000 and 777 there may be a sound diferance but this is down to the age of the box etc

 

[Hisrudeness]

909 919 999 1000 Are Japanese domestic market boxes 100v and the labelling varied in different regions.

I wouldn’t pay much attention to wattages on these vintage boxes anyway. Some of them are bizarre and make no sense. Most of the time the amp chips are all the same.

 

[Mystic Traveller]

Why does the label on the rear cabinet of the sharp gf 777 / 767 have higher watts than the 909/999/1000

777 reads as 60 watts
909/999/1000 read as 28 watts

The same thing for many other JDM stereos vs their ROW counterparts.
Afaik, the reason is the Japanese own system of standards (don't remember the abbreviation right now).

 

[BoomboxLover48]

This has to do with the power supply of Sharp boxes. I would leave the amp chips alone and they may be all the same.

The power supply for the GF 777 should draw a current of 0.5 Amps. ( 60W/120V)
Where as the power supply of GF 909, 919, and 1000 draws less current of 0.28 Amps. (28W/100V)

You can have high current power supply for the boxes for the same voltage on the rails.

 

[hopey]

It all depends on the build quality of the Transformer itself. They are designed to a standard that includes "no load loss'". This related to the energy wasted by the TX itself when energised with no load connected. Therefore you can reduce the power comsumption by replaceing the Transformer with a higher spec one. The Music Power is still the same.