Zung
Contributor
Yes, I can believe that.
My experience is limited to an Aqualung/Spiro XL, a Titan, a Scubapro R190, a R290 and a R390; all plastic's. I still have them, but they only serve as octo's or place holders in my closet.
I wonder if there's any explanations or measurements that could explain the difference between the classic downstream and the barrel poppet. The ANSTI plots don't show anything.
The way I see it, maybe: the classic downstream blasts the air almost directly to your mouth, taking your teeth out along the way like some of the Mares do. The barrel poppet is more of a 2 stage device not unlike a muffler: the air first fills the barrel, then in the body and on to your mouth.
My experience is limited to an Aqualung/Spiro XL, a Titan, a Scubapro R190, a R290 and a R390; all plastic's. I still have them, but they only serve as octo's or place holders in my closet.
I wonder if there's any explanations or measurements that could explain the difference between the classic downstream and the barrel poppet. The ANSTI plots don't show anything.
The way I see it, maybe: the classic downstream blasts the air almost directly to your mouth, taking your teeth out along the way like some of the Mares do. The barrel poppet is more of a 2 stage device not unlike a muffler: the air first fills the barrel, then in the body and on to your mouth.