Could a step-down/up transformer be put in front of a power amplifier without any effect to the sound quality vs. without a transformer, assuming the transformer can handle the wattage demanded by the amplifier?
An example 1800W transformer that I'm considering: https://www.amazon.com/120V-100V-Converter-appliances-Certified]/dp/B09WGRFTQ6/ref=asc_df_B07L57MTF6/?tag=hyprod-20&linkCode=df0&hvadid=693128203619&hvpos=&hvnetw=g&hvrand=1229008932488199097&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9061104&hvtargid=pla-1949889769170&mcid=910a8c7e49d039ca9673e662109b1cce&gad_source=1&th=1
An example 1800W transformer that I'm considering: https://www.amazon.com/120V-100V-Converter-appliances-Certified]/dp/B09WGRFTQ6/ref=asc_df_B07L57MTF6/?tag=hyprod-20&linkCode=df0&hvadid=693128203619&hvpos=&hvnetw=g&hvrand=1229008932488199097&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9061104&hvtargid=pla-1949889769170&mcid=910a8c7e49d039ca9673e662109b1cce&gad_source=1&th=1