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Video and capture
A cheaper alternative is the Logitech C920. In the initial stages it is better to invest in light (lighting).
Dynamic microphone Rode Procaster for voice recording.
A cheaper alternative is Blue Yeti. Since the Yeti microphone does not require an audio interface, as well as such a powerful preamp. (cheap audio interfaces will not work with Procaster) For acoustics - DARVERSON microphone (for AKG), connection - Fifine.
The analog on PCI-e is RME HDSPe AIO. Extension cable fits.
A cheaper alternative is the Focusrite Scarlett Solo. But only if you are not a musician who deals with streams. In this case, it is better to consider mixers, or something more decent (note, Yamaha will not work, since it has only one bus via USB). If you plan to take an external preamplifier for a dynamic microphone - it is better to consider the PCI sound card.
There are a lot of cheaper alternatives, a matter of tasks. If this is for a voice on a quiet dynamic microphone, then you can take Cloudlifter (but for many there is enough 70db of ART TUBE MP STUDIO V3 amplification, if you work with plug-ins) and for example Focusrite Scarlett Solo. If this is the sound of a musical instrument, I would recommend taking MPA and replacing the lamps.
Unfortunately, there are no cheap alternatives. The quality of cheap electric violins leaves much to be desired. But you can try to find something used, at a price that can suit you, this applies to both acoustics and electric violins.
Monitor earphones KZ ZS10.
A cheaper alternative - any headphones in which you are feeling comfortable.
Processor - AMD Ryzen 2700x
RAM - Patriot Viper 4, 8 GB
Motherboard - B350 PC MATE
Hard Drive - Samsung 970 EVO Plus
Video card - Gigabyte GeForce GTX 1660 SUPER GAMING OC
Power Supply - ATX Corsair HX750i
Case - AeroCool P7-C0 Pro
Cooling System - Noctua NH-D15
Case fans - be quiet! SILENT WINGS 3
For streaming - Philips 273V7QDAB
For work - Philips 273V7QDAB
Keyboard - B. O. W 2,4G
A cheaper alternative - you can use absolutely any lamp, except for floodlights to illuminate the cottage - they are bad quality. Try to buy lamps that do not flicker and remember, the more lighting, the better the picture quality - on any camera.
A cheaper alternative is all you can use. I use the cheapest and most practical things in this direction, except for a microphone stand, but it's just longer.
Software and plugins
Streaming Program - Xsplit Broadcaster
Sound Processing Plugins - Slate Digital
Free alternative is OBS, as well as any plugins that you can find and you will like in terms of sound / usability.