- May 23, 2015
- Reaction score
- May 23, 2015
I was only posting in reference to your last sentence where you said something about the open vent at the back not having any effect on what happens between the front of the driver and ear drum - I would consider the whole system as having an effect on the whole, due to it effecting the movement of the diaphram (which moves the air between it and the ear drum). But yeah, I may have misunderstood the point you were making there too!I think you misread my post, I meant you can't compare what's going on IN FRONT of IEM and speaker drivers, due to different acoustic environments (closed ear canal vs. free / diffuse field).
You can, of course, compare what's going on BEHIND the drivers. In both cases, rear air volume acts like a damping spring against driver movement. And the rear vent is simply a method to adjust the amount of rear damping (larger vent = more rear air volume = less rear damping). This works similarly for both IEMs and speakers.
Btw, the part you mentioned about matching the pressures in front and behind the driver, was something Flare claimed for their older (closed) IEMs, iirc. I don't think anyone would seriously claim that for rear vented IEMs like the FlarePros.
I think the whole ethos of everything Flare Audio designs is about equalising the presures infront and behind the driver. It's part of Davies's whole thinking on how drivers should behave. Pretty sure that's what is meant by "Dual Jet sound balancing technology" , the sound balancing bit. Personally I thought it was the R2 that didn't do it properly compared to the rhetoric, but the Flares probably do... Different driver though so depends on how open the unit is behind.