This thread is meant to serve as a guide for potential Torii MK4 owners who are curious about speaker pairing.
I hope that all MK4 owners out there can add on and share their speaker pairing experiences ( be it positive or negative) over here.

For starters, I recently got a pair of new 16 Ohms Zu Audio Soul Superfly Mk 1 b speakers.
These are now my "default speakers".
My Audio Chain now consists of :-
Oppo BDP 95
-> Soundsilver Symmetry Interconnects
-> Torii MK 4 ( default fuse)
-> Clearday Double Shotgun Speaker Cables
-> Zu Audio Soul Superfly Mk 1 b speakers
Tubes Used
Rectifier : Brimar 5R4GY "D' Getter
VR Tubes : STC CV3798 / 0A3 "D" Getter,
Mullard 75C1 / 0C2 "D" Getter
Preamp tubes: Holland Herleen Pinched Waist PCC88 "D" Getter
Output Tubes : NOS Philips Holland Metal Base EL34
MK4 Settings
Speaker Impedance: 16 Ohms
Reconstructive Feedback : Off
Bass : On
Treble : MAX "ON" Clockwise Position
Master Volume Knob : Typically 5-6 turns out of 20
Field Report on Soul Superfly speakers :-
Excellent dynamics due to the 101 db sensitivity.
Incredible Depth of soundstage.
Music is very smooth sounding.
Bass is adequate, impactful and tight ( thanks to the bass switch! )
Vocals are mesmerising and slightly forward.
Very precise centre channel for vocals.
Sound is transparent but more laid-back as compared with the Alesis speakers (mentioned below).
The reconstructive feedback switch works and does not whistle.