I think i have been quite lucky in getting these drivers. T/S parameters not available. So i used open baffles. Guess what's the price of 1 driver? Rs 300/- (original philips drivers). I don't have any objective data about frq response but i checked it with a test note program from net. It gave easily audible notes down to 45Hz. 40Hz was audible with difficulty and 35 was inaudible.
Didn't know Philips makes full range drivers. Could you also test how high they go?
And just for Rs. 800/- Great buy :clapping: