Does anyone know of a small amp that can be powered by a usb port?

[Sanyobusiness]

My home office uses a 4k tv as a computer monitor mounted over a drafting table as a desk… that part works great, but I’ve been using an old bluetooth speaker for sound. I was wondering if anyone knows of a simple 2 channel amp similar to something like this:

which could be mounted to the back of the tv (or zip tied to the wall mount) so that I can connect speakers, but also that could be powered by one of the USB ports on the back of the set.

This one requires a DC power block with at least 9V, but the thing is the power strip that runs my computer and monitor and phone etc. is full. Not an insurmountable problem, but seeing as this is just for very close range sound maybe there was a low power option out there that could run on the 5V from a USB.

Seems like it should exist, but so far I haven’t found it. Maybe it doesn’t?

 

[highfigh]

My home office uses a 4k tv as a computer monitor mounted over a drafting table as a desk… that part works great, but I’ve been using an old bluetooth speaker for sound. I was wondering if anyone knows of a simple 2 channel amp similar to something like this:

which could be mounted to the back of the tv (or zip tied to the wall mount) so that I can connect speakers, but also that could be powered by one of the USB ports on the back of the set.

This one requires a DC power block with at least 9V, but the thing is the power strip that runs my computer and monitor and phone etc. is full. Not an insurmountable problem, but seeing as this is just for very close range sound maybe there was a low power option out there that could run on the 5V from a USB.

Seems like it should exist, but so far I haven’t found it. Maybe it doesn’t?

There's no way a USB port will work as a power supply for an amp unless it powers headphones or ear buds.

You can add a small power strip for the wall warts, to allow using the correct power supply. Just buy one without filtering- wall warts don't draw much and they won't cause problems for the existing strip.

 

[TLS Guy]

My home office uses a 4k tv as a computer monitor mounted over a drafting table as a desk… that part works great, but I’ve been using an old bluetooth speaker for sound. I was wondering if anyone knows of a simple 2 channel amp similar to something like this:

which could be mounted to the back of the tv (or zip tied to the wall mount) so that I can connect speakers, but also that could be powered by one of the USB ports on the back of the set.

This one requires a DC power block with at least 9V, but the thing is the power strip that runs my computer and monitor and phone etc. is full. Not an insurmountable problem, but seeing as this is just for very close range sound maybe there was a low power option out there that could run on the 5V from a USB.

Seems like it should exist, but so far I haven’t found it. Maybe it doesn’t?

A standard USB port will not power any power amp. Not even a low powered one. It has a maximum power output of 2.5 watts. A headphone amp is possible, but even the smallest power amp you could think of could not work with 2.5 watts of power available. So your search is fruitless.

There is a new standard USB C port, that I have never seen on any thing, nor anything that connects to it, that can supply 240 watts. I doubt that will go anywhere. That sounds daft to me.