Good day
Just wondering if anyone can answer the question about Fender Amps and why they HISS so much?
I know this about Fender amps but was just curious about this
I bought ( 50.00 ) this amp off CL and it works perfect
Any way to subdoo this problem???

Fender amps do not hiss any more than other brands.  Hiss is an unfortunate side effect of gain.  The more gain you have, the more likely you are to have hiss.

Excess hiss is usually caused by a noisy semiconductor - op amp, transistor, etc.

 In addition to the gain issue Enzo mentioned, treble response will also have a big effect on the amount of hiss.  So if you find that Fender has more hiss than some other amp, maybe the other amp doesn't have as good high frequency response.  Maybe adjusting the treble controls on the two amp will make them more similar in terms of hiss.

Agree with all of the above: hiss is mainly generated inside "active" components, those with gain, in this case Operational Amplifiers; and *most*  commercial Guitar Amps (think Fender/Marshall/Laney/Crate/Peavey) use the same, TL072 or one of its variants, which in practice became the unwritten standard because they are very good , including being low noise, and to boot, abbundant and inexpensive, because they are made by the Millions, no kidding.
It's a very good part which old designers would have killed for in the old days.
What does it mean?
That as noted above, most (think 90/95%)  amps "hiss the same" ... because they use practically the same input stage.
Now, what you do *after*  that will change the perceived level, as in:
* more gain? .... more hiss.
* more treble boost? ... more hiss
* brighter speakers (or adding a tweeter?) ... more hiss

Since Fender amps in general are equalized to sound bright and jangly the price you pay is higher perceived hiss.

That said, some amps use some tricks to make it seem less.

* Marshall amps often use an extra contact in the input jack to mute part of the preamp when nothing is plugged in the input, so if you go to, say, Guitar Center and put a Fender and a similar Marshall side by side, similar settings, the Marshall will seem to be far quieter ... but once you plug a guitar they're both are the same.

* some amps go for a dull, creamy, thick sound and couldn't care less about brightness, spanky sound ... they will show little hiss even if set very loud ... not the case of Fenders.