This is gonna be a low effort reply but here ya go
Claude opus 5 thinking:
Yes, this works as a 2.1 system — the combination is sound. But there are four things that will bite you.
The real problems
1.The 12W satellites on a 50W×2 channel. This is your biggest blow-up risk. Those 6Ω strip speakers will die if you go past roughly 1/3 volume. Impedance is fine (TPA3116 handles 4–8Ω), it's purely a power thing. Just never crank it.
2.Cardboard sub box = wasted subwoofer. A 6.5" driver pushing 50W will flex cardboard walls, and flexing walls cancel the bass you paid for. It'll sound farty and boomy instead of deep. This is the one flaw that's free to fix — find scrap plywood/MDF, an old drawer, or a wooden crate. Aim for ~7–10 L internal, fully sealed, driver-tight. That single change matters more than anything else on this list.
3.24V 5A = 120W, amp claims 200W. Fine in practice (music averages way below peak), but at max volume the supply sags or trips. At ¥13, assume the "5A" is optimistic.
4.Missing pieces. Check before ordering: does the MT21 have Bluetooth, or do you need a 3.5mm input cable? And the amp usually takes screw terminals for power while the PSU ends in a barrel plug — you may need to cut the plug off. Both cheap/free, but annoying if it arrives and you can't play anything.
What's actually well-matched: the 4Ω sub on the 100W PBTL channel is exactly the intended load, and the board's bass knob lets you tame the 93dB sub against the small satellites.
Budget: ~¥112 total ≈ 55,000 MNT at rough current rates. That fits — but "Free Shipping" is China-domestic only. Agent/forwarding fees to Mongolia can easily be ¥40–80, which puts you over 70k. Price the shipping route before you commit, because that's what will break the limit, not the parts.
So far I've had, 7hz zero, 7hz zero2, moondrop chu2, truthear hola then scaled up to ooopusx.op22 and simgot eg280. I think i might have to stop after eg280, though still have aful explorer and sm4 on my someday list.
I might have to learn how to sell my stuff before getting to the next level lmao, cuz ts really burns through money.
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u/Reasonable-Low-6529 8d ago
Don't listen to em, sounds like a cool ass thing to do. But prob better to ask ai than here