i have an off brand hollinger 80 watt amp and 160 watt peak.The amp puts out pretty good power for a cheap combo.When i raise power up to get some good thump the speaker crackles and pop.It is not busted,but just a cheaply made speaker.I like the amp for the power i need right now,which is turning it up and really hearing what this thing can do in a band practice situation.I want to replace the speaker which is a 4 ohm to a 8 ohm and move to at least 100 watts which would be plenty in my case right now.Can i do this?