the greater the power of the amplifier, the more secure the playback effect will be, especially when playing large dynamic volume. The bass horn of the big speaker is relatively large, so the bass effect is better. If you like the low-frequency effect, you should use a large-caliber bass horn. Even if the quality of the small-caliber bass horn is good, you can't play the shocking bass effect.

people who like to stop their voices are not suitable for buying big speakers, and the effect of playing vocal songs with small bookshelf speakers will be better.

Therefore, you should choose the amplifier and speakers according to your listening preferences.

what suits you is the best.