those little transistor things are not meant to sound like the larger 100 watt amp's.
But, it would be difficult to get 5 amp's to compare w/ 1 amp, because you could do a full stack, but, the 20 watt amp's, would need another ¼ stack. You could run 4 amp's into a full stack, but, the odd amp would need a pair too.
But, all 12" speakers for the amp's would be pretty cool. The 100- 1 watters though, that'd be 100 speakers!..