my first boombox with 2.1amp inside

I bought Up2stream Amp 2.1 to create my first speaker. I thought…how hard can it be? Well it turns out to be hard, but I finally finished asambling thins togheter and now I can enjoy the music.
So let’s tell the story…after I bought the Up2stream Amp 2.1 with accessories: DAC board, wifi external antenna, remote control, IR extender, power source.

Next I needed some speakers…so I went for a diy kit - Overnight Sensations MT Speaker Kit Pair wich has the midbass - HiVi B4N 4" aluminum midbass woofer, tweeter - Dayton Audio ND20FA-6 3/4" neodymium silk and also has components to build a crossover. Next I needed a subwoofer so I choose Dayton Audio DCS165-4 6-1/2" Classic Subwoofer 4 Ohm .

After all components arrived…which took forever because the speakers were not on store stok… I started to design the enclosure…and boy I got a big surpise… I had to learn a lot about different paramenters which I had no clue before. I used WinISD to calculate volume , port length/diameter, checked the rear port air velocity , cone excursion…and made a plan for my boombox . I found an online site , , which allowed me to create the enclosure. I create one enclosure for mid and tweeter and one enclosure to incorporate the 2 mid enclosures and the subwoofer.

After I got some idea how to cut the MDF, went to local store for precision cut…well was not that precise , the back it’s shorter with 2mm…but I can’t help it I don’t have tools to do it myself. So I started to glue parts in place

Made the speaker wholes with a jigsaw…wich didn’t get so precise… but I don’t own a router

Put the crossover parts on a board according to schematic, put the wires and then put everything inside,
I put the amp, with usb and aux in, drill a whole for power and one for on off switch

I bought paint from local store and painted with 3 layers… now you can see the first run…

20210727_182924 (

i still have a lot to work on it, put a handler, rubber feet. i want to make it portable so i will put some Li-Ion batteries inside…


Nice project. In case you decide to stick to building speakers: Get yourself a router! In my opinion, it is the most versatile tool when building speaker enclosures and might not be much more expensive than an Arylic board :wink:. With a router, you can eaily do the cutouts for the speakers, round the edges (if you like that), and even trim boards by 2mm :wink:.

Hello EthanEsrah,
You are absolutely right. You need a router to make wholes for drivers perfect round. Also you can trim edges or make everything look nice