It sounds like a VT Bass. Just with extra top end via the Bite switch: think of that like a third notch on the speaker sim, if that makes sense. The sound is bright with the Speaker switch up, but gets more high end roll off when you push it down...the bite switch is like you went the other way with the switch and got even more high end.
There should be no more top end with the Bite switch engaged than the original VT Bass provided that the speaker sim is engaged. If the speaker sim is disengaged the pedal will be brighter than the V1 or V2 pedals because there is no high end roll off like there is on the V2 speaker sim switch.