I've heard the Parterre on a couple of occasions through a friend. Not my kinda sig, personally. They're very different signatures. Both times I heard the Parterre, the bass felt too elevated and dominating. The bass just feels slow and boomy compared to the K3K. The overall sig is thicker than the K3K. I don't think you'll find the treble up to snuff either. Lastly, the Parterre has a more dimensional, monitor like approach to its soundstage vs the more diffuse, stereo oriented K3K. As a complimentary phone, it's fine, but I personally feel that the ASG 1 Plus is superior and at half the price.