Audio Systems: 1998 firebird monsoon sound system, monsoon sound system, speaker radio

Question
i want to add an amplifier, and change the sailboard speakers, any suggestions on what power amp, 2 or 4 channel, and type of speakers.
thanks

Answer
what is a sailboard speakers ??
you can not change anything on this vehicle, the speaker radio and amplifier are made to work together  your speakers are 1.5 ohms and the radio needs the monsoon amplifier to work
in this case you have to remove it all and start with a new radio
good luck