Available as an assembled Module and as a DIY project.
This Module is currently available.
passive dual stereo attenuator
I use passive transformer audio I/O where there is no volume control (since the connections are different as input or output).
So this is their perfect companion.
https://modularaddict.com/dual-stereo-volume-stereo-attenuator-kit-meng-qi
1 Users are observing this
These merchants probably sell this module. Huh?
Meng Qi DSV Dual Stereo Volume