LOL well to be honest they are not really that sharp.
And Gramophone needles come in four sizes
Super Soft Tone
Soft Tone
Medium Tone
Loud tone
So the bigger needles you use, the louder the sound.
Want to know where the term "Stick a sock in it" came from ??
In the early 1920's when Gramophones had the brass horn on top of the gramophone, People used to stick a sock or cloth into the horn of these to reduce the loud volume that it produced, so the term kinda stuck and people have been using it ever since.
The Gramophone i have is known as a "Suitcase gramophone" or "Lunchbox Gramophone" and the good thing is, they are light and not too heavy. But as soon as you fill the internal record holder the weight soon builds up. Acetate records are much heavier than modern records and they are much more fragile, and easily chip, crack, or even break, which is why these records have to be handled very carefully.
Also, here is a tip if you have records that have become warped.
If you get 2 sheets of glass about 8 inches square, what you do is place your record between the sheets of glass and heat up one side with a hair dryer for about 3 to 5 minutes, then leave for about 30 minutes for it to cool, and your record will be nice and flat and as good as new
And this does work because i have already successfully restored 3 records that were slightly warped, they used to make the needle jump out of the groove and this can lead to further damage as a reproducer on a gramophone is quite heavy so it can land pretty hard on the record surface.
Best storage conditions for all records is to store them upright and away from heat sources and sunlight, and keep them in a dust free enviornment or even better in a protective sleeve if you have one.
At the moment i am currently after records from the 1920's to the 1960's of accordion music.
Hope this information helps
Keith