use a much higher programme power speaker, know the fact of this speaker .. the important one.. the sensitivity of it( say 100dB SPL @ 1w/1m) ... full blast the amp.. input a tone.. say 1000Hz( 1kHz is a standard tone for testing).. make sure ur input is 0dBv ( u should use an pre-amp to do this)..

put a SPL meter 1m away on axis of the speaker... see wat kind of level it is... let say u get 115dB...

115db - 100db = 15dB extra u get compare to 1W/1m...

the RMS power of ur amp can do is added 15dB to the speaker compare to a 1W amplifier..

every time power double.. double of 1W = 2W.. double of 2W=4W.. double of power will give u extra 3dB to speaker..

15db=3+3+3+3+3...

u need 5 times double of 1W then only u get 115db..

which is 1 X2 X2 X2 X2 X2 = 32W RMS...

*** all calculation above assuming amp n spk also @ 4ohms rating..

look @ the fuse and guess the power.. sound senseless for me..