@camb the A5 is a flagship speaker for the A-series, capable of handling up to 1000W and playing full-range as loud as you need it. But it isn’t just capable of playing louder and deeper than the A3—it actually sounds better than the A3 because of the improved driver technology.
In the S-series, the analogous speaker in terms of range and output is the S5 MkII at ~2x the price of the A5.
In the S-series, the analogous speaker in terms of range and output is the S5 MkII at ~2x the price of the A5.