I’ve built several of those and they work really well. No one ever noticed I was not using a BSS133.
It only needs a 9 to 18V DC power supply.
The LTR110 really does the job (I’ve made a blind test with a 12 year old to check on the possible loss of highs).
With this it´s possible to drive 2 amps at the same time without ground loop, and to send the XLR DI to mixing desk (or soundcard for reamping) or live (Bass).
Just thought I would share.
I’ve actually built one with 4 outputs (TL074) for driving 4 amps at the same time.
For info, there is another thread for a Splitter here: See also
https://www.tube-town.de/ttforum/index.php/topic,17225.60.html