If you just want to compare the 2 speakers, I'll go for Altec Lensing.

However, Altec Lensing 4121 kind of bad speaker compared to others with same price range speakers. If you really want Altec Lensing branded add some more money go for 4221.

Alternatively, within the price range, I'd recommend Edifier C2. With a stand alone equalizer, better sound effect but slightly loose to Altec Lensing 4221's sub woofer on bass sound.

If you can go for budget around RM 400, you have plenty of good speakers selection. You can try one by one of them to listen how solid the bass and how clear is the treble sound.

For your information, Altec Lensing cheaper price range speakers, such as 4121 and 4221, are really quite old products. Last time I can say they were super cool, even the best; but now sorry, they have no match with those low range speakers...

Kind of true Most of them just buy Altec Lensing by friend's recommendation...I can say I was commented as an idiot after I bought my Edifier S330 and told my friend after that. But I never regret because I put my effort on every brand's research and review, tested on site, and found that this really an ownage