Intel NUC NUC8i3CYSM6 USFF PC i3 8121u 8Gb RAM 180GB SSD Radeon RX540 Windows 10 | eBay
HP EliteBook 840 G5 - i7-8550U · Radeon RX 540 · 14.0”, Full HD (1920 x 1080), IPS · 1TB SSD NVMe · 16GB DDR4, 2400MHz · Windows 10 Pro | LaptopMedia.com
Intel Launches NUCs With Radeon RX 540 GPU, Soldered DRAM | Extremetech
After some advice from you all I skipped the cheap amplifier and got a used Pioneer RX-540 to power a couple S-P310A speakers I found outside. Thanks! : r/diyaudio