Looking for a streamer/DAC

OP, 

A wall wart is a single small box that plugs into an electrical outlet. So, in this case a wifi extender. Just google wifi extender. Most just plug in and have an Ethernet output… plug your streamer into that.

Here are some: https://www.top5choose.com/top-5-wifi-extender-2022.html?gclid=Cj0KCQjw39uYBhCLARIsAD_SzMQ2bs4TWDDdx4795Z12TWhQ5pWQYy1rJFEeRuyXmPW-3xxdEzFXcm8aAhTaEALw_wcB

I have a Mcintosh ma352 with B&W speakers also... I have used only one streamer that has all the specs you are looking for... I have a Rose rs150 which I really like and internet radio comes with it with a large selection of anything you would like to listen too. The Rs250 is half the price and comes with much the same features but half the size. You can store your music internally by adding an SSD drive or play off a USB stick that plugs in the back. It has a port for connecting a computer and a port for ethernet through which you get the internet radio or wifi. It has wonderful Vu meters in many colors which made me want it (I'm a sucker for VU meters). You might audition it and others because since I haven't heard others, there maybe something better out there but I like the one I have a lot. Maybe it is for you.

I went from a 10 year old Burson (now doing service in upstairs secondary system and hooked up by USB to a Roon Nucleus) to a Bricasti M1 using an ethernet card. Pleased as all heck- it's as good as my turntable which is my "reference" device. B/w Roon and the M1 along with some other tweaks, I'm where I want to be with my main setup.