Help with an Amp/Receiver for Polk RTi a7's

Hi! I currently have just two RTi A7s. I am satisfied with the bass they're able to produce and because I primarily just listen to music and watch little to no TV or Movies, I just want to run a 2.0 setup. The amp would need to have at least 4 inputs and I will be connecting various turntables, cassette decks, etc. What's a decent amplifier I could look for to accomplish this? Since my primary use is music, I would greatly prefer it to have analog controls on front for Bass / Treble if possible because I like to tweak quite a bit while listening. Or perhaps it would be best to connect an EQ to the amp? I dont have any experience doing this but welcome suggestions.  Thanks