I'm a bit confused about the mid caps.
The 12kHz treble might correspond to the 1k treble resistor.
The mid frequency specs for the Xotic Basses are the same as the EWS Trilogic II pedal.
The treble is different.
Bass XJ-1 (upto 2009 with switches on back)
Bass XJ-1T (2009/2010 and beyond, switches on front)
SW1: "Mid switch", +/-12dB @ 400Hz/800Hz
SW2: "Bright switch", +/-18dB @ 6kHz/12kHz
However Nikifena mentioned the basses had mid caps 47n and 100n.
I have this feeling the mid frequencies might have got moved on the EWS pedal but the printed specs were not?
I have no specs for the original Xotic Tri-logic pedal.
Anyway From what I can work out the models around are:
1) Xotic "Tri-logic Bass Preamp". (From <= 2006 upto 2011?)
Wide box pedal. Black.
2) Early model Xotic Bass XJ-1: sames specs as XJ-1T except switches on the back. trimpot on back. (From ???? to about 2009)
3) Later model XJ-1T. Toggle switches on front. Trimpot? (From 2009/2010 and beyond)
4) EWS Tri-logic II. Black (From 2011 to 2015).
5) EWS Tri-logic III. Grey/Silver Hammertone (2015 to now).
Bass freq switch. Treble Freq Switch. Mid freq Control.