yes , 4 speakers + 1 subwoofer easily
how?
Lower bridge ( 3/4 channel`s power to subwoofer "
remaining 1/2 channels
hook
Left front , left rear speakers in parallel ( 4 ohms + 4 ohms in parallel = 2 ohms on left channel ) resulting stable
Right front , Right rear speakers in parallel ( 4 ohms + 4 ohms in parallel = 2 ohms on right channel ) resulting stable
since you give 2 ohms per channel , over all bridge impedence gets 4 ohms , thats means ur amplifier is running safe