u/HeavyFriendship3563

I am looking for a Bluetooth speaker with adjustable volume on the aux/line input. I currently have a Rockbox Bold L, and at full volume, it blasts out whatever I put in via this input—so it's extremely loud. I have actually built a preamp into a Technics turntable, and the output is fixed, so that cannot be adjusted. If anyone has a good tip, I'd love to hear it.