#1
ok i got a halfstack recently

it has to input jacks for the effects loop and i wanted to know what exactly this was for

dont say read the manual cuz i didnt get one (bought amp from a friend)
Soul Collector of the BassMilitia PM Dinkydaisy

Co-leader of The league of toxicity33, Kankuro, Dr. Gonzo Slash, DownInAHole, Synyster Gates, This End Up, and Neil_.

You should've used the Pythagorean Theorem, BITCH

BLALLALALASSISSIS *shank*
#2
The effects loop has an output and an input. You go FX OUT to your pedals (pedals like phase, flange, trem, delay, chorus, reverb...etc. But not distortion, wah, or compression). Then from your pedals you go FX IN. And its a loop! lol

As for 'what its for?' Some pedals sound better in the loop...other dont. Theyre great for cheaper pedals with a low quality bypass...so you dont lose as much tone as when those pedals are in between your guitar and amp.
#3
You'd want to put all modulation and time-based pedals in the effects loop. Try putting them in front of the amp too so you can actually hear why they should be in the effects loop.
#4
alright thanks guys

edit : and i did try what u said guitarmeister

and yes i see why
Soul Collector of the BassMilitia PM Dinkydaisy

Co-leader of The league of toxicity33, Kankuro, Dr. Gonzo Slash, DownInAHole, Synyster Gates, This End Up, and Neil_.

You should've used the Pythagorean Theorem, BITCH

BLALLALALASSISSIS *shank*