Even with your source equipment, you could probably benefit from a pair of speakers if you find something you liked the sound of better. Although that stuff might be worth upgrading too.

Is there a better speaker for you though? That really depends on the sound you like. There is no right or wrong answer, and as long as you've auditioned things than you're taking the right steps. It may still take time after getting something to really find out if it's right for you, but initial listening tests are important.