Indeed, in this case DionP’s comments are a mix of blatant nonsense, ridiculously outdated audio design practice, and totally unfounded allegations. Only buzzer devices used where audio quality is totally irrelevant could vary from frequency response charts that much.
My own testing of the SMAS shows Pimax’s frequency response charts are indeed highly accurate. And listening by ear is often the best way to fine tune these things - it’s what the professionals do.
Indeed, from the frequency response charts published, I would expect the KDMAS to have excellent bass. Some of the complaints thus far suggest volume is a major problem though, and I would expect the KDMAS not to be as loud as the DMAS?
Because the SMAS is AWESOME at what it does. As a standalone product, for desktop/development/simulation use, it is amazing to get decent mid-to-high-frequency audio quality without having to insert a pair of earbuds, every single time the headset is put on, and not to have obnoxiously uncomfortable and obstructive speakers to align every single time as with the DAS.
For roomscale, with loud explosions and such, a DAS is fine anyway, so there is not much to complain so excessively about. Just get a DAS if you must for that. I use a DAS myself with a 5k+ for PavlovVR and such, because I don’t want to foul up my 8kX in the slightest.
For desktop work, the convenience, comfort, and mid-to-high-frequency audio quality of an SMAS - with the proper hinges, proper foam, and rotatable ear cups - is a MUST HAVE.
No, that is not plausible. What might have been plausible is that the KDMAS itself is just quieter than the DMAS. But the evidence so far - using PC audio output ports, using other Pimax headsets - does not support that conclusion.
My guess right now is that the TRS plugs on the KDMAS have a subtly different shape than the TRS jacks on the 8kX expect, or perhaps the plastic frame of the 8kX is causing minor mechanical interference.
Lately, I have noticed all my audio jack connections to all of my computers - which normally remain plugged in for years at a time - have begun to fail, needing to be rotated a bit (probably all caused by oxidization somewhere). I no longer have any love for the TRS style connectors, and welcome the spare pins of USBC connectors as a replacement.
Please try this. Connect a set of earbuds (or other headphones) to the 8kX audio jack. If that works reasonably, the problem is with the TRS plug used by the KDMAS (as I would expect). Then try a cheap short (~1ft) 3-ring (TRS not TRRS) extension, adapter, etc, whatever, between the 8kX and KDMAS. That very likely will solve all this.
Well just been messing with the KDMAS, and the base is there, but only if I have the cups fitted and hold the ear phones against My ears, and as the KDMAS is to wide for My head and the speakers do not come in contact with My ears, its like listening to sound coming from a tin can, its bad, no bass what so ever.
Who had the idea of making KDMAS that wide ?
This at least makes some sense. A gap between the speakers and ears might substantially reduce volume, if not bass.
Rather than just making the KDMAS smaller though (which could cause severe discomfort for some users), more adjustability or elasticity would be better.
From what I have seen, the KDMAS speakers are attached by a rigid rod, rather than springy contraptions used to press the speakers against the ears as with the DAS and similar. Perhaps a similar spring, or making the rod out of flexible material would be better?
I could 3D print an inward-bent rod with the appropriate degree of elasticity to achieve such an effect if this is a replaceable part…
That design really should have been there by default…
After all that time it has been under development, failing on such basic requirement of having the earcups as close to airtight as possible and/or the speakers as close as possible to the ears so that the low energy from the soundwaves (if low power amp and/or low speakers sensitivity) is not vastly wasted in leakage outside where it is meant to go (= within the ears).
The oculus CV1 already had that spring design (and was producing good audio).
As the KDMAS earcups seem removable and are just clipped over the speakers, I guess a possible fix to try is a 3D printed adapter to make the cups more airtight on the ears.
Only way to do this, would be to bend the tube, I had to push the ear cups in, witch was bending the plastic band of the strap, IF you have a big head, it will not be a problem.
I don’t know the diameter of the pads but I’m sure it’s possible to find deeper ones on AliExpress.
That would be the easiest solution but it’s trial/error as You won’t know how they’ll alter the sound.
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The last ones go as low as 65mm in diameter and they are most likely really comfy (pretty sure I actually have a pair (100mm) I’m using on my Phillips SPH9500’s).
Given that they’re deep they most likely make the sound warmer (more lower mids and bass).
Bigger cups will likely add to the more bass feeling as bass needs a bit of room but also may get a bit muddy.
But I guess it’s a bad workaround as the speaker itself probably needs to be a tad closer to the ear (with a ~closed design). Bigger spacing/room distance to the ears is not favorable for high frequencies that get „canny“ the more they sit away.
This experience is reproducible with almost every headphone so you can try it at home on your stereo.
i’m really supprised there’s no flexibility in the holders. it would seem so easy let the rod slide up down and tilt in / out. heck even the super cheap ones on the Odyssey+ has that ability on top of rotation.
I believe that is because Pimax used exactly the same design (and different drivers) they originally made for off-ear DMAS, just added the cushions to it.
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