with the wattage question... ok na yung mga 125 rms watts na seps... it can do the job right kasi bubusugin mo sa amp yun. then for the subs, go for 300 rms watts. pili ka na lang ng seps na tama for you kasi maraming seps with different sounds. mas maganda to audition all that you can then pick at the end.

with the amp 4/1 means 4 ch bridgeable then 2/1 is 2ch.

parang ang lakas ng rating for a 2 ch amp yung 2/1 na sinasabi niyo.. baka peak power na yan. that means nothing, kailangan mo yung rms rating. what is the real specs on those amp you were tempted to buy?

ok yung 2/1 na amp pero yung 4 ch kasi kaya niya yung seps and sub... so kung 2/1 ka, dalawang amp kailangan mo. one, to power the subs then another to power the seps. double gastos.

baka tanongin mo din kung ano rms

rms: i forgot the term of it pero its the continuos wattage it can produce.