The headphones are beautifully made. Very solid earpieces. Same top band and retainers as many other Chinese Grado copies, but very nice. The sound on initial listening is pretty thin. I purchased these to experiment with and I have other drivers to install, which I think will be better. The paper covering the holes on the rear driver face has one small hole which looks like a tuning effort, my experience with this type (with P7 drivers) is removing the entire paper produces a better result. I will see, and if it is a great improvement I will add to this review. Otherwise, truly well made from a mechanical standpoint, looks like something 3 times the $60CDN price.
Open type with good sound output! Good headphones!