KZ X Crinacle CRN Zex Pro Review (2) – Inspired By Drop JVC HA-FDX1?

INTRO

KZ Acoustics is one of the more well known budget kings where they take and constantly tweak models, the KZ X Crinacle CRN Zex Pro is no exception. I wouldn’t be surprised to see a third iteration. KZ has taken liberties with marketing slang to advertise it as an electrostatic but then clearly indicate later it uses an electret microphone. Not the same thing, but seems a little misleading.

So the the original KZ Zex was sort of interesting from a driver standpoint, but sported the usual KZ style of tuning. It received mixed reviews with the CCA NRA being a slightly better take on it from what I have seen but not experienced.

The Zex Pro attempts to rectify some of the short comings by adding a balanced armature to pick up the treble. The tuning appears to be a complete departure from the KZ ZEX based on reviews I have seen of the original ZEX. Instead I believe the KZ X Crinacle CRN Zex Pro is actually inspired by the popular JVC HA-FD01 or Drop JVC HA-FDX1. So if you were curious what a JVC HA-FDX1 sounds like with a sprinkle of bass lift and a resonant treble peak around 8khz, this gets interesting.

Disclaimer: No animals were harmed in the receipt of these free earphones from KZ. I would like to thank the post office for delivering them to my mailbox without incident.

Tested at $35 with the LG G8 and Sony NW-A55, Liquid Spark DAC + JDS Labs Atom

GOOD TRAITS

• Not another KZ tuning, something different and balanced
• Fitment fits snugly
• Isolation

NEEDS IMPROVEMENT

• Resonance around 8Khz, not just measured. Impacts Timbre.
• Higher volume improves staging, but at the expense of the resonance.
• Misleading “Electrostat” verbage if buying based on technology is how you make decisions.

PHYSICAL COMMENTARY

After removing them from the simple KZ white box, I surprised to find the KZ X Crinacle CRN ZEX Pro does not use the ZSN/ZS10 Pro/ZEX shell. Instead it appears to use what I think is the DQ6 shell that is more contoured and offers excellent isolation for a universal shell.

I received them shortly before my workplace decided to do some concrete ceiling work with a jackhammer. Perfect time to really put these to an isolation test. While I cannot say they are OSHA approved, I did find them to be excellent isolation when seated further away in a separate room, better than the more generic shells.

The KZ ZEX Pro 2 pin silver plated flat cable is a departure from the tangling prone twisted cable, and while it looks and feels meh, it does tangle less easily.

PACKAGE CONTENTS

• Detachable 0.75mm 2 pin 1.2m long cable with or without mic depending on order
• IEM pair
• 1 Pair each of S/M/L starline eartips

SOUND

So the KZ X Crinacle CRN ZEX Pro is not a minor incremental improvement of the original flavor Zex, but what is it? I had heard this signature before initially thinking maybe the ZSN series. After a quick measurement, I realized it looks eerily similar to the Drop JVC HA-FDX1 and well sounds a bit like it to.

The difference comes from a lower centered bass boost enough to add fullness to vocals and drums and upright bass that the JVC lacks. It departs from neutral but classifies as balanced for my definition. Vocals dance along the forward line, it’s a less vivid sounding than my preferred signature, but works great for jazz and classical.

For popular music the signature presents a studio effect. It doesn’t have the suckout though that more mellow KZ iterations such as the ZSN, or ES4 had with shoutier 2-4KHz treble plateau.

Listening to drums and cymbals I am picking up some extra twang from that resonance peak, this impacts the timbre as well. The KZ X Crinacle CRN Zex Pro treble experience is a nice departure despite that zest.

I feel like there is a hand off issue between the electret and the BA driver that reminds me of an audio tape slightly boogered up. I don’t always hear it, so it depends on if the music has information in that particular band.

TECHNICALLY SPEAKING

Excellent width combined with above average depth is a good fit for the KZ X Crinacle CRN Pro. While it seems unfair to keep comparing to the Drop JVC HA-FDX1, instrument spacing and overall blackness doesn’t reach top ratings for the Zex Pro, I would classify as above average.

There is not a 10x difference here though so ignorance can be bliss. As volume is increased it starts to sound a little crowded, so best to keep it mid level or a tick north of that for more liveliness.

COMPARISON

BLON BL-03 ($25) vs the KZ X Crinacle CRN Zex Pro ($35)

So I should probably compare the KZ X Crinacle CRN Zex Pro to something in the same price bracket right? The Blon BL-03 was widely dispersed so this should give an idea. Obviously fitment is better on the Zex Pro. Less punch on drums, more blended in the bass for the Zex Pro, the BLON has more natural timbre whereas the Zex Pro gives a more spacious feeling and ambient room portrayal.

There is a minuscule hint of forwardness in the BLON BL-03 only compared to the Zex Pro. Together these two characteristics make the BLON BL-03 feel closed in compared the Zex Pro. Since the treble rise occurs later and that pesky peak around 8khz, cymbals and flutes get more prominence in the the spotlight.

HAPPY ENDINGS

While the misleading use of electrostat leaves a bad taste in my mouth, the rather different tuning makes this KZ X Crinacle CRN Zex Pro a foray into experiencing what some people might view as a more natural tuning with extra low end and narrow treble boost that distinguishes it as a vivid budget HA-FDX1-esque.

Consider it a less technical version where your college roomate has turned the bass boost and treble knobs on that 1970’s vintage stereo system to make it exciting. It’s sculpted custom universal adds more secure fitment with good isolation, so if you played with their earlier KZ ZSR or DQ6 models, you will know what I mean.

I rank these as nice to have budgets way different from other KZ offerings and no issues recommending to friends, but not replacing my daily mid-tier favorites in the $150-$200 category.

I had no idea these were Crinacle branded until later when I was told by KZ to use the new ridiculously long name. I can understand that “X Crinacle” is the moniker used for models with his hand in the tuning.

I respect Crinacle’s work, it’s just too long of a name. I would have actually ditched the Zex Pro portion and give credit where credit is due, and if people didn’t like it so what. Chi-fi is a fast moving target where 6 months from now there will be other things in the market catching our attention.

SPECIFICATIONS

GRAPHS

• Left vs Right
• Zex Pro vs JVC HA-FDX1
• Zex Pro vs Blon BL-03
• Impedance

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DISCLAIMER

Get it from any available reseller.

Our generic standard disclaimer.

About my measurements.

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