Not true a cheap streamer creates a lot of noise ,it has a cheap $10 wall wart powersupply . Plus junk for parts ,rule of thumb 25% at most goes into the cost including packaging , R&D over head and markup. Meaning a $1k streamer less then $225 that’s complete , pure rubbish .
a good LPS powersupply like $750 linear tube audio ,is a great buy I have one on my Motorola 8702 modem- router , and makes a solid difference in not only wifi forthe tv but much lower noise ,going to my SW8 Hub witha ocxo oven controlled clock, Talema LPS and low noise regulators, for$600 a excellent buy ,and added a good Hifi tuning fuse ,and Pangea sig mk2 awg14 power cord , all make it even betterstill.