Best bang for your buck is probably this guy. It’s steel so not aluminum that’ll get bent up:
Is there a battery powered headset mic preamp with line out? I think I found something that i can use as a 2 channel transmitter:
Mefe 2.4GHz Guitar Wireless System Rechargeable Wireless Digital Transmitter Receiver Stereo for Electric Guitar Bass (Black+Silver) https://www.amazon.com/dp/B082TS1X9K/ref=cm_sw_r_cp_api_i_7gyiFbKM1G43W
I ordered this usb-c lavalier mic for $18. It's not here yet, but let's hope it works. Having a usb-c mic avoids the adapter issues. https://www.amazon.com/Galvanox-Microphone-Lavalier-Omnidirectional-Recording/dp/B08BBG4343
I have this little Audio Amplifier I bought from Long & McQuade for 80$. It takes 2 XLR inputs which you can then connect to each of your KRKs and it connects to your PC/Laptop with a USB-A. When you go into rekordbox, audio settings, you will see an option which says output using PC or something like that and just select this amplifier as your output. Good luck!
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The amplifier: https://www.amazon.ca/ART-Project-USB-Box/dp/B07X58CCSW
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I use this , placing a 20k mah battery against the back side of my right ribs.
I’ve got a little archer amp (not this exact one but very similar), 6.5” speaker, 15 Watts. If you’re in the US it’s yours for $25, PM if you’re interested
Thanks!
Microphone Suspension Mic Clip Adjustable Boom Studio Scissor Arm Stand For Blue Yeti Snowball, Constructed With Premium Quality Metals For Professional Streaming, Voice-Over, Recording,Games https://www.amazon.com/dp/B07TG9RWST/ref=cm_sw_r_cp_api_i_YWphFbXXRA6SK