Tube Pre amp with tone control suggestions

Everyone:

IF you want to keep an existing preamp or integrated amp, lacking some features, this Chase RLC-1 provides remote volume, remote balance, remote treble and bass, so you make all adjustments from your listening position.

It’s S/N is 120db, no one can tell if it is in or out of my system.

None on eBay now, this one was sold but it shows it well

https://reverb.com/item/12411621-chase-rlc-1-remote-line-controller

It also has built-in fletcher musnon ’loudness’ for bass boost at low volumes, only engages at low volumes.

I use a McIntosh C2500 tube preamp with tone controls, love it.  

I have a Luxman  CL-35 III. These were manufactured in about 1975. They sound good, but not as good as the CL-38. Additionally the CL-38 has built in SUT and a remote control.

Try using hifishark.com to search for it.

The  Schiit Loki is an add on which costs $149. I have never heard it and am in no way associated with it. But It may be a less expensive alternative. Another alternative MAY be  a subwoofer. However that depends on your speakers . IE, my speakers have very good mids and highs but lack bass. Generally I set the subs and forget them. But every now and then I just need to tweak the lows or highs. Too much bass kills the highs. Too little bass takes away the punch. But again, my system is at a good place where it works for me. Not sure it is for everyone, especially if you are fighting too much bass as it is.

All excellent suggestions. I have several Subs I have put in and out. Don't really want to go to sub route. I have a good sub and it definitely does add to it
, I have various speakers that I can use cornwall's tannoy mg12 a few others. I know none of these speakers lack the bass when being put to them. I will look into that $149 option.