Yes.
Since the DZ4 is using the back chamber volume the “leak” from other drivers, to push the PR, i wanted to compare the pulled and blocked with original.
Why?
Because of a echo/reverb that was constant and really bad with metallica etc.
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Cause?
The PR cannot do a 1:1 meaning the active driver creating a 1Khz signal cannot be reflected through the PR as a perfect 1Khz because it is rear vented signal and it is an open back chamber…actually also an open back.
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Effect?
A lot of the info past and near ear gain has essentially added noise and distortion.
Signals from active driver are leaking/reflecting and going through the passive mylar outputting signals other than the original.
I do agree with that: if the engine is too shitty, the car can’t be good .
But take a “basic” catheram as an example: the engine is a tiny little thing that isn’t great by any mean. It’s a small 4 pots that you can find in common cars. But the engine is “good enough for what it has to do” and the car is great.
Of course you won’t make a Ferrari out of this kind of engine, but then again you can still have a great car out of a “not great but good enough” engine.
As for belllsing ba in high end gear… I honestly can’t answer: I don’t have enough knowledge and experience in the subject to say anything definitive.
To sum up, my point is: it’s not that simple. Iems are a combination of several parts and the quality of the driver(s), while important isn’t the only defining factor of the iem quality.
Dam that make sense, no wonder why busier tracks sounded off to me (but not gonna lie I kinda dig the reverb on simpler songs LOL). Anyways, thanks for the knowledge Chris
Depends on the genre. For Chris’ library it’s gonna be messy for sure and the fact he doesn’t listen too loud doesn’t help either, but for ballads/simpler songs the vocals are amazing at high volumes (80db+). Not a layering or separation monster by any means (a step below the Hexa) and the marketing gimmick is off-putting for sure, but definitely not a spectacular failure.
It not new tech thats the thing its old tech done the wrong way. PR is the most poorly implemented application I have seen. And then top that off with a semi open back design shows a clear lack of understanding of how that should work and why ypu would use it in the first place.
Done correctly = great results and a deeped bass extension.
I almost wonder if you can find which driver is the bass driver and then just 3d print an enclosure that would fit in the back of the shell to seal and port the sound over to it. Would be an interesting experiment. Passive radiator bass on something like the 1more triple driver over ears was legendary for me. In an iem I imagine it would be an instant buy if cheap enough.
A reviewer in my community got the dz4 to test.
He landed pretty much on the same conclusions:
the radiator is not ment as a “bass reflex” thing but seems to be here to enhance the sense of space/reverb to the mids.
therefore the set can be quite picky as the genre/music it fits
it works pretty well with acoustic and live stuff, but pretty bad with anything else.
I have the feeling that letshuoer marketing team should have explained their intentions a little better with this set: most people have thought it’s here for bass enhancement and thus had different expectations than what the set offers.
