Recommendations for a non-tube Preamp board for the TPA3116

Looking to increase the gain on my TPA3116 Audiobah Green Board. I have a 6n3 tube preamp already, but I'm putting this installation in a hidden area of the bathroom and don't want the tubes in that area, as it will be installed behind a panel that once hooked up will have limited access.

I'm actually using a dual-tweeter, single woofer ceiling speaker (8 ohm, 86 dB) for this application in this small 45SF space. In hind-sight I wish I would have gone for the two traditional speakers, because it sounds somewhat mono, although it would be nice above you in a shower setting where you're not moving much. Source is an Echo Dot 3rd Gen. It would be nice if the pot had an on/off switch but not absolutely necessary. What do you suggest?

Thanks for your help.
 
Last edited: