No prob sir 
congrats sa new t-amp nyo.. tama kayo mas maganda talaga yung mas mataas na version.. i'm planning to buy the big brother t-amp siguro pag mi pre-amp na ako.. balak ko kasi bi-amp.. 
Kung passive biamp ang balak mo, the amps should be of equivalent voltage capability (unless you're current limited) para hindi sayang. The reason is that the weaker amp will clip before the stronger amp, since it is still amplifying the entire spectrum (unfiltered input).
Kung active biamp, okay lang na very different ang capability ng amps na gagamitin.
Just a tip: When looking at these small T-Amps, check out the power supply voltage if you're not aware of the model numbers. Typically, those that take in higher voltages (24V, 30V, etc.) are much more powerful than those that take in lower voltages (14V, 12V, etc.).
To those who had some experience with mobile audio, I'm sure you know the difference in dynamics between a head-unit powered system and a system powered by a more capable amplifier. The T-amps that run input feeds below 15V are about as strong as an unassisted car head unit. It can still sound good at moderate levels and/or with simple material (vocals, solos, etc.), but it will lack the weight, punch, effortlessness and dynamic capability of the stronger amp in more demanding conditions (unless you have very sensitive speakers).
