I think phase response can work for or against a specific sound signature --- it doesn't mean that a flat phase response will make something sound more or less coherent, but rather that it can help shape spatial characteristics of an earphone, like openness, intimacy, etc. I played around with the PRM for over an hour, and could not get it to duplicate the feel of the demo UERM sitting right next to it. Everything about the PRM felt 'off' to me, even though the FR was close to what I liked.

Coherence to me feels more like a timing and decay issue. A dynamic driver with gobs of decay just doesn't jive well with a BA with not too much of it. Time misalignment will make the problem feel worse. I thought this way when I heard the Astrotec AX60. The dynamic driver always felt half a beat "late", leading to my heightened sense of unease.

We should get their Westone asses to the next Bay Area meet then.

...back in the days of the top tier IEM's Shure SE535, ER-4, TF10 and CK100 etc. Music_4321 was pioneering the anti-CIEM agenda, along with James444.

James also had issues with "coherency" which he noticed in some 'too many driver IEM's'.

He informed me there wasn't any discoherency in the CK10 I was using at that time, in other words that I hadn't noticed it yet so I should stop hyping six driver-ness.

In retrospect...

1. They were right to go against the 'most expensive wins' phenomenon, which has escalated in recent times.

2. The JH16 (and other C/IEM's) DID have certain issues with 'coherency'.  A few thought I had mental issues for saying the JH11 was better but the arrival of the Freqphase in a sense proved the JH13/JH16 were flawed in ways which hardly anyone noticed and/or were escaping all measurement data (unless you measure one driver at a time and then overlap the data, and/or measure for phase shift as it appears JH has done).

Anyway, Purrin pioneered saying the K3003 is horrid for the price, which it is.


The T-Peos two driver hybrid sounds really novel / nice btw.

well bro, as this all comes down to a matter of opinion, i'd take the "horrid for the price" k3003 over the diabolical for the price piano forte x, lx, vlll and even the highly rated for the price ie800 - and did.

 
well bro, as this all comes down to a matter of opinion, i'd take the "horrid for the price" k3003 over the diabolical for the price piano forte x, lx, vlll and even the highly rated for the price ie800 - and did.

Hehe well the consumer decides the market trend so buying a Vsonic V7007 clone for $750 USD less and sending emails to AKG would put pressure on AKG to remove the fashion price and take actions versus cloning.  The jewellery commercial proves they were marketing it with $20,000 leather jackets in mind, not saying that's necessarily a sin or anything but you know.

_______

Purrin what is your personal subjective term for how phase/time shift sounds?

The H100 sounded terribly disjointed and V shaped. Eke had 2 pairs (not at the same time) that sounded that way. And a different pair Rin measured was also a deep V, or perhaps deep W is a better description.