I'm new to sound design but I noticed something odd with a set of cables I purchased. I have a set of 3' Xlr cables that I purchased along with a set of Xlr(Female) to 1/4"(Male) adapters. I am noticing that when I have everything hooked up to my mini mixer it does not sound as good as when the microphone is hooked up with a 20' Xlr to 1/4 in cable. Everything seems lower and the sound isn't as deep as it is with the Xlr to 1/4 cable. I know that my mixer does not have a preamp but I'm not entirely sure that's the problem. Are my Xlr cables just bad, or am I missing something. I'm really sorry if the answer is something simple its just I am new to this and I haven't been able to find anything online.
Edit 1: I didn't list the mics or the mixer that was my bad. The mics are behringer XM1800S which are dynamic mics. The mixer is a behringer mx400. It is a line mixer and from what I understand mics done have a line level signal. Is the XLR to 1/4" cable giving it a line level signal that the regular XLR cables aren't? I really just want to make sure my cables aren't bad.