I have a solid state Behringer V-Tone GMX212 Stereo Combo with 27 modeled sounds. The instruction manual was very vague I just don't understand what They are. How do I switch them? Help I fill very dumb

they mean effects and amp models. some amps and multieffects pedals use modeling. this models the sound of certain famous amplifiers, cabinets, and effects. your amps has modeling of probably a flanger, phaser, tremolo, chorus, tweed amplifier, etc...
It has 3 amp modes tweed, British, calif the it has 3 modes hot, higane, clean and the it has 3 different speakers modes and if each effect is a modeled sound then I would have thirty
they mean you can have 27 different combanations. 3x3x3=27
Ovation Celebrity
Ibanez Prestige S1220WNF
modded Ibanez GAX75
Fender tuner-DIGITECH EX-7-BOSS SD1-Ibanez CF7-Tech 21 TM 60
(LOOP)Boss DD20(Loop)
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