-
I see, thank you.
However i was actually wondering about the difference between black vinyl and non-black vinyl, not about EP's and LP's / 45 and 33.
To put it another way: why can't you press the same way in coloured stuff as you can in black stuff?
salad-
the difference between black vinyl and non-black vinyl
Discussed here:
https://vinylmoon.co/blogs/the-vinyl-moon-blog/how-records-are-made-part-2
-
Black vinyl is coloured, it's just that the colour black was chosen partly because it improved the quality of the pressing.
I'm not sure whether it's just been a case of coloured pressings not getting the same time taken over them in the past or there is a chemical reason, the pigments cause surface noise maybe.
It's a really big subject and I'm not going to do it justice in a few posts. One thing I have discovered with vinyl is experience teaches you a lot. Handle a lot of records and you can start to get an idea where it might be pressed, whether it was done cheaply, all those kind of things. One thing you almost never see is an audiophile pressing in anything but black.
rhb
Airhead
I mean any album had to be cut quieter than an EP which generally contains less material.
However there are lots of exceptions. So my comparison was coloured EP's (12" records) especially dance genres are cut loud enough to overwhelm any surface noise where albums pressed in the amp or similar coloured vinyl are possibly trying to squeeze a bit more onto the disc because they are longer.
Caveat is that EP's can be nearly as long each side as the ideal maximum length per side which I think is around 24 minutes. You could cut very quiet passages longer than this because the grooves need less space.
Also bear in mind that 45rpm reduces surface noise vs 33rpm