[Slater]

FYI Crinacles FR graphs have thier resonance peak at 8k. So that peak is not that high

Exactly. It’s an 8k coupler artifact. That’s why graphs aren’t the be all end all, and your ears are the best way to tell

 

[zenki]

rip p2.
thought they fixed the treble issue, apparently not.

 

[JEHL]

Exactly. It’s an 8k coupler artifact. That’s why graphs aren’t the best all end all, and your ears are the best way to tell

To my understanding he simulates the peak due to it being consistent with what he hears rather than a coupler artifact.

Which I imagine it's bad news either way since at $370 blind buying it is probably a bad idea.

 

[SciOC]

Exactly. It’s an 8k coupler artifact. That’s why graphs aren’t the best all end all, and your ears are the best way to tell

Oh great, you really think that's a coupling artifact from his measuring rig? That's the one thing I actually did trust him for (relatively accurate FR graphs).

My biggest problem with the idea of the P2 is that they obviously haven't fixed the bass as it's inherently limited by the driver....

I'm guessing the P2 is likely going to flop given the price and limitations.

 

[unifutomaki]

To my understanding he simulates the peak due to it being consistent with what he hears rather than a coupler artifact.

Which I imagine it's bad news either way since at $370 blind buying it is probably a bad idea.

From @crinacle's own article on the subject (emphasis mine):

Now since our ear canals (and in turn, the equipment that simulate it) are essentially hollow tubes, that means that sound waves going through it will result in half-wave resonances. Again, the exact mechanics of this requires a whole physics lesson by itself, so here’s the simplified TL;DR: when measuring IEMs, there will always be a consistent, repeatable “spike” in the higher frequencies. This “spike” is known as coupler resonance and is typically a constant that’s independent from the IEM being measured (assuming consistent methodology).

This resonance can be controlled with a consistent measurement methodology in which the insertion depth of the IEM into the canal is made constant. For my measurements, I have this resonance normalised at 8kHz (whenever possible).

Note that:

Consistency and repeatability takes priority. The location of the resonance bears no immediate significance, only that the measurer (me) is able to hit it consistently.

 

[Strifeff7]

https://crinacle.com/2020/10/16/tin-hifi-p2-unboxing/

try to use a peq on P1 to match the P2,
how does it sound?

 

[RikudouGoku]

Oh great, you really think that's a coupling artifact from his measuring rig? That's the one thing I actually did trust him for (relatively accurate FR graphs).

My biggest problem with the idea of the P2 is that they obviously haven't fixed the bass as it's inherently limited by the driver....

I'm guessing the P2 is likely going to flop given the price and limitations.

Is the bass really inherently limited by the driver if you can use EQ to boost it to satisfying levels? (P1) I considered it to be the tuning.

try to use a peq on P1 to match the P2,
how does it sound?

I will try later. Didnt think of that.

rip p2.
thought they fixed the treble issue, apparently not.

My issue with the P1´s treble is the timbre and that isnt something you can tell from the graph.

 

[JEHL]

Is the bass really inherently limited by the driver if you can use EQ to boost it to satisfying levels? (P1) I considered it to be the tuning.


I will try later. Didnt think of that.


My issue with the P1´s treble is the timbre and that isnt something you can tell from the graph.

Is this invisible in a 3D graph too?

 

[RikudouGoku]

Is this invisible in a 3D graph too?

No idea, but those graphs are extremely rare.

 

[Audio Fun]

Hi guys, hope you doing well.
I just posted the review for the IKKO CTU01 upgrade cable. Overall really great cable for its price, it provide better bass impact, smoother and fuller midrange, well defined yet fatiguing free treble, also promote the soundstage and resolution noticeably.
If you interesting for this cable you can checkout my detail review: https://www.head-fi.org/showcase/ikko-ctu01-upgrade-cable.24713/reviews#item-review-24542
Have a great weekend!

 

[RikudouGoku]

JQ 4U (beryllium DD) = 160 usd

https://www.linsoul.com/collections/all/products/jq-4u


Another beryllium DD added to the beryllium train. When is the train fully seated?

 

[jant71]

JQ 4U (beryllium DD) = 160 usd


https://www.linsoul.com/collections/all/products/jq-4u


Another beryllium DD added to the beryllium train. When is the train fully seated?

Looks like the Thor redone really.

 

[OklahKekW]

Hope that single beryllium DD has some good tuning otherwise it might end up like a Kinera Freya. Looks good, sounds horrible for the paid price.

*(For those never listened to beryllium DD plated get a JadeAudio (Fiio) EA1 for $29.99 on Amazon)

 

[RikudouGoku]

Hope that single beryllium DD has some good tuning otherwise it might end up like a Kinera Freya. Looks good, sounds horrible for the paid price.

*(For those never listened to beryllium DD plated get a JadeAudio (Fiio) EA1 for $29.99 on Amazon)

(I dont think it looks good though. )

 

[dharmasteve]

RevoNext RX8S Wired In-Ear Headphones Hifi Stereo Earphone Heavy Bass Earbuds with 1DD+ 2BA Hybrid Driver Detachable Cable Noise Isolating Earphone . Bought it for £22.19p on Amazon Prime for the red with mic. All the others were £35.. After some burn in I am happily surprised. Unusual company and unusual IEMs. Very deep soundstage, very realistic bass. Took some time to burn in, but these are very good. No upper mid glare and non-fatiguing The cable is a dogs dinner, but I put on a Tripowen Zonie, which fits the recessed connection on the shell.... and Spiral Dot L tips. Tried also with a balanced cable that I had to tape on with micropore tape..and it sounded really good. As good as many other DD x 2BA.