I connected a 5W, 50 Ohm speaker to my RPI aux output and the output that I am getting is very low. The RPI volume is set to 100%
Is there anyway to get higher volume outputs from the RPI?
Thank you for this information. Is there a easier way that won't require me to buy an amplifier? Maybe using a USB or Bluetooth speaker?Imperf3kt wrote: ↑Mon Mar 19, 2018 7:34 amThe aux out on a Pi is 'line level'.
Some speakers do okay, but most will not be loud enough (headphones are usually good enough)
To get louder audio, you will require an amplifier.
For a 5w speaker, you want to use a 5w amplifier or less
I personally like the PAM8403 for this job.
Be aware that if you use it in stereo mode, it can draw up to 1.2A (3w) when powered using 5v.
Do not bridge the outputs, they must be kept stereo. Twisting together the ground wires WILL destroy the IC and you'll have to buy another.
Or, if you don't use max volume or get a better rated speaker, I've recently purchased a handful of TPA3110D2 stereo 15W amplifiers. These require 8-24v (26v max for the chip, but mine state 24 probably for the circuitry)
So a different power supply is required, but the quality seems a lot better for only a fraction more cost.
It IS recommended to use ferrite chokes and shielded power wires for this module.
The rated 15w per channel is when ran at 16v
Thank you for your help. I've tried using a Bluetooth speaker with no success. I managed to connect it to the RPI , but the RPI isn't transmitting it to him.