Here is a new project that I made for a homemade class D amplifier consisting of a Bluetooth 5.0 board based on TPA3116 2x100W @ 4ohm power amplifier and an SMPS board 24V 4A.
Everything fits perfectly. Dimensions are 150x120mm. I printed the construction with PLA with 25% infill and supports that connect the build plate.
Bill of materials:
Bluetooth 5.0 100W+100W TPA3116 Digital Audio Power Amp HiFi Sound Dual Channel Class D Stereo Aux TF Card Amplifier Board
https://www.aliexpress.com/item/4000178424860.html?spm=a2g0o.productlist.main.51.6ad73601D3HjYv&algo_pvid=16e4b0d0-57ef-4bba-8ff2-f3341b3eb1b5&algo_exp_id=16e4b0d0-57ef-4bba-8ff2-f3341b3eb1b5-25&pdp_npi=4%40dis%21BGN%2126.71%2121.37%21%21%21105.30%21%21%40210318b816913278670445172e2034%2110000000647228366%21sea%21BG%21123796225%21&curPageLogUid=QBPKvXXqgpfh
MZMW Isolated Switching Power Supply Module 220V AC-DC 5V 12V 24V 36V 48V 1A 2A 3A 4A 6A 7A 8A 9A 12.5A AIndustrial Bare Board
https://www.aliexpress.com/item/1005005506106635.html?spm=a2g0o.productlist.main.69.731916b1VZ5Rqj&algo_pvid=311ce715-dd67-4e8b-9ad7-0b234ab01d83&aem_p4p_detail=2023080606292510064204413232690006830419&algo_exp_id=311ce715-dd67-4e8b-9ad7-0b234ab01d83-34&pdp_npi=4%40dis%21BGN%2123.13%2118.51%21%21%2191.19%21%21%402101e9d516913285657985139ea00f%2112000033344426355%21sea%21BG%21123796225%21&curPageLogUid=qtOpFF8DeLZe&search_p4p_id=2023080606292510064204413232690006830419_8
speaker connector: (4 positions)
mains 230AC switch:
The author marked this model as their own original creation.