How to build a REAMP box and WHY you need one

What is a reamp box, why would you use one and how to build it for about 20$.
Schematics:

https://ibb.co/BPwvDnS

Parts list:

Box: Hammond 1550A or any metal box bigger than 89x35x30mm
https://si.farnell.com/hammond/1550a/box-diecast-30x35x89mm/dp/1823031?st=1550a

XLR Connector: Neutrik NC3FAV1 (any XLR connector will work)
https://si.farnell.com/neutrik/nc3fav1/socket-xlr-panel-vertical-pcb/dp/724506

Jack Connector: Any two contact mono jack in plastic housing (like Neutrik NMJ4HF-S)
https://si.farnell.com/neutrik/nmj4hf-s/socket-jack-sw-2pole/dp/4169177

Transformer: VTX-101-1604 (or any 600:600ohm line level audio transformer)
https://si.farnell.com/vigortronix/vtx-101-1604/audio-transformer-1-1ct-600-600/dp/2723450

Resistor: 10kOhm (250mW power rating is enough)
https://si.farnell.com/multicomp/mcf-0-25w-10k/res-10k-5-250mw-axial-carbon-film/dp/9339060

Potentiometer: 100kOhm Logarithmic
https://si.farnell.com/tt-electronics-bi-technologies/p160knp-0ec15a100k/panel-pot-100k-log-16mm/dp/1684817

Switch: SPST or SPDT toggle switch
https://si.farnell.com/multicomp/1ms1t1b1m1qe/switch-spdt-100ma-125v-solder/dp/9473416

Knob: 6mm round shaft knob (any 6mm knob will work - it's best to keep the diameter at 16mm or less)
https://www.tube-town.net/ttstore/classic-black-pointer-knob.html
You can find these components on other sites as well, often cheaper.

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Software for frequency and distortion analysis:

RoomEQWizard: https://www.roomeqwizard.com/

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Видео How to build a REAMP box and WHY you need one канала Life Harmonic