BITMAIN Antminer S9

[floridaman86]

I found what appears to be a good deal on an S9. The guy is asking $75. But it doesn't come with a power cord.

My understanding is that it can be configured to be used in a standard 110v outlet if the settings are  set to be used under 1,000watts.

My questions are:

Would this make it quieter? If so, do any of you have an idea of how loud? Decibels?

Does it produce less heat when using less watts?

Is this safe in the long run?

How much TH would it produce if I set it to say 800watts?

[philipma1957]

if perfectly tweaked maybe 10th for 800 kwatts.

if you find better firmware maybe 7th and 550 watts which is fairly quiet.

i have old threads on how to tweak them.

i will look for one