Are there any preamps that can work with 2 amps and a sub woofer?

I use the freya+ to power and control volume for  2 amps, a powered sub, and have 1 output leftover. I love it. 

Just get 4 of these and plug to together to give 3 outputs, and tryit you won’t hurt anything, don’t do it if your preamp is a tube it'll run for the hills.
https://www.wish.com/product/5b0d6b80c0d6f4651b819647?hide_login_modal=true&from_ad=goog_shoppin...

Cheers george

OP look for a good preamp. Don't spend a fortune. I love Mac. BUT I'm not stuck on stupid either. There are a lot of good preamps..

I have an older Krell 5.1 HT that I really like the build quality. Great stereo playback too. The cool thing, complete sub control and one of the best made remotes on the planet. Class A type circuits. Older DAC and HT but it is a Krell. I paid 350.00 for it 6 years ago.. You can get a 7.1or2 for close to the same now.. Same great playback in stereo..

Speakers and a GREAT preamp, everything else ebbs and flows.. My case more EBB and less flow.. Yes my cup runneth over.. LOL

Regards

Is your sub self-powered? If not, I would advise selling it and getting a self-powered sub with built-in equalizer.

Sub receives l and r from pre-amp, takes the low bass, sends only upper bass, mids, highs out to amp. Importantly it's volume is controlled by the preamp.

Adjust Sub's crossover point; adjust Sub's volume control to match your main's at your most frequent listening level. Now any volume change at preamp goes to sub and amp(s) cohesively.

If in the used market check any of SF line preamps, 4 outputs, 2 balanced, 2 single ended.

G