Switch box & audio integrity

Will a cheap RCA switch box degrade my signal? I'm using for home recording to hook up 3 A/D converters to 1 monitor source. So, I really only need RCA Audio jacks.

Here's some links:
http://www.meritline.com/4way-audio-video-av-rca-switch-black-799---p-35488.aspx?source=fghdac

http://www.buy.com/prod/gtmax-rca-audio-video-switch-box-selector-splitter-6-in-1-out/q/listingid/66750894/loc/111/213685859.html

http://www.amazon.com/Sony-SB-V31G-Selector-3-Component-Functionality/dp/B000092YPL/ref=pd_cp_e_3

http://www.nextag.com/RCA-4-Way-AV-605476235/prices-html?nxtg=23c60a1c0523-7F712EA3E0B0D8C1

It seems this type of device may be appalling to serious audiophiles, but I can stand to lose anything the typical non-audiophile would not hear. So, how bad?

Other suggestions (<$100 since this is really only a matter of convenience)?

Thanks,
KB