Just use a passive preamp, they make very simple units. I bought two a couple of years back. Mine also had RCA or XLR in or out.. I think they were 49.00 or 79.00 good copper traces inside, the IC was thick and the solder joints were good.. The volume pot.. never any static. I used them for a bass volume control, just like you..
https://www.ebay.com/itm/HiFi-Passive-Preamp-Stereo-Audio-Preamplifier-with-Volume-Control-for-Power...
I got the volume correct but I needed a better crossover, I went with a 2496 Behringer and bypassed the internal XO. That added active DSP. Best move I ever made on that system.
I quit using the monitors onboard bass section and went with an active XO and full blown DSP for the bass. I use separate MB columns and a servo sub system..
I quit making waves in the neighbors pool too. I’ve got it down to just a ripple.. :-)
Regards
https://www.ebay.com/itm/HiFi-Passive-Preamp-Stereo-Audio-Preamplifier-with-Volume-Control-for-Power...
I got the volume correct but I needed a better crossover, I went with a 2496 Behringer and bypassed the internal XO. That added active DSP. Best move I ever made on that system.
I quit using the monitors onboard bass section and went with an active XO and full blown DSP for the bass. I use separate MB columns and a servo sub system..
I quit making waves in the neighbors pool too. I’ve got it down to just a ripple.. :-)
Regards