The mini amps either have an RCA or 3.5mm input on the back left side. The other connections on the back right are the pair of 5 way binding post speaker wire outputs!

A stereo receiver adds multiple RCA inputs.

Learning to strip speaker wire is easy. Even easier with a wire stripping tool . A spool of wire lets you cut the size you need.

Or cables with banana plugs are an option, stick them straight into the front center of the 5 way binding posts, on some speakers or amps you may need to pop the tiny caps off the end hole of the binding posts first.

• 12 ft pair https://www.amazon.com/Micca-Copper-Speaker-Plated-Banana/dp/B078SBL7JM
• buy 2 for pair 15 ft https://www.crutchfield.com/p_007CBB15/Crutchfield-Speaker-Wire-15-feet.html?tp=2191
• buy 2 for a pair 20 ft https://www.crutchfield.com/p_007CBB20/Crutchfield-Speaker-Wire-20-feet.html?tp=2191

Measure with some string first to find out how much you need to go down from the amp, across the floor to the speaker stands and up to the speakers so you are not suspension bridging the cables in mid air. https://www.elac.com/speaker-placement-guide-get-the-best-sound-from-your-stereo/

Speakers that connect with RCA connection would be powered speakers with a built in speaker amp and they still have 1 set of speaker wire to connect one speaker to the other, a short 5 to 10 ft wire is usually included and already stripped.

I use this: https://www.amazon.com/IWISS-Professional-Compression-Ratcheting-Wire-electrode/dp/B00OMM4YUY/

It's identical to the MDPCX crimper. MDPCX milled out the middle jaws a slight bit, but the original works just fine. The one you are looking at is the same I believe.

I use the pin remover from mainframe, it works really well and has replicable pins.

https://mainframecustom.com/shop/cable-sleeving/mainframe-customs-terminal-extractor/

For wire strippers, I use this: https://www.amazon.com/VCELINK-Automatic-Stripper-Professional-Adjustable/dp/B08G48R47N

For snips I use https://www.amazon.com/Hakko-CHP-170-Micro-Cutter/dp/B00FZPDG1K/

I think you would be happier with these tools and it's probably cheaper. But the kit you are looking at looks good too for $60. And it's a cool blue color lol

EDIT: Actually, I think that kit has this one: https://www.amazon.com/MUYI-Waterproof-Connector-Ratcheting-0-14-1-5mm%C2%B2/dp/B01N5KYWDF/ which is different than the IWISS and MDPCX crimper.

I tried this one before using the IWISS and it wasn't very good, the tolerances were off and the crimps came out terrible.