If you have excellent SET amp like Line Magnetic 508 or Silbatone, then you can get tight and powerful bass out of SET.
Or you can try Arion Apollo system which can be driven by 3W SET amp with 105 db/W supplemented by subwoofer.
https://forum.audiogon.com/discussions/105db-w-high-efficiency-speaker-suitable-for-low-power-set
Or you can try Arion Apollo system which can be driven by 3W SET amp with 105 db/W supplemented by subwoofer.
https://forum.audiogon.com/discussions/105db-w-high-efficiency-speaker-suitable-for-low-power-set