Amp suggestions

So, I'm in the search for a new amp. Currently, my setup is a 90's Technics SA-GX530, a Fluance turntable and a pair of Dynaudio Audience 50's. I havent decided yet, but I may add a sub down the road. I used to run the Dynaudio's with a little 100W Fosi amp from my PC and it actually did a pretty good job. I'm in between a Wiim Ultra or a Yamaha A-S501 or 701. Those seem to be the go to around here. What is a little confusing is, looking at the Wiim Ultra online the illsutration shows a turntable and states that, "built in preamp needed." I could've sworn I've seen it said that a preamp isn't needed with that model, or I'm crazy. Are these both good options, or is there another I should be looking at?