[ericr]

I much preferred the Tzar, (impressions pending). The treble was just too much with the Fourte for me.

However, some have said they prefer them with foam tips and I'm thinking I might have enjoyed them a little more that way? Kinda wished I would have tried that but on the other hand, I do not at all like the inconvenience of foam tips, and all I used for tips is my preference for Spin Fits.

I am just about ready to pull the trigger for the Tzars. Looking forward for that “out-of-this-world depth and soundstage”!

That's why was mentioning inserting them deeper. Doing so (plus a Schiit Eiter) corrected the issue I was having with the treble.

Probably should have mentioned it sooner, but hopefully it proves helpful to those still to receive the tour kits.

 

[Quadfather]

That's why was mentioning inserting them deeper. Doing so (plus a Schiit Eiter) corrected the issue I was having with the treble.

Probably should have mentioned it sooner, but hopefully it proves helpful to those still to receive the tour kits.

I really preferred the longer triple flange sleeves that go a little deeper into the ear. the treble was beautifully extended but never sibilant to harsh.

 

[aaf evo]

The Fourte remind me a lot of my Andromeda's. Except every gripe I had with the Andro is no longer present.

 

[wldcohso]

Did any of you start to feel fatigue or pain in your ear after la ong season using the Fourte? My inner ear was a little sensitive after a couple hours. Also, does the deep base become fatiguing after a while.

 

[ljnew]

I live in Colorado Springs, CO and would like to participate in the tour. I agree to follow the terms of the tour.

Just wondering are we all using the same tips to place in our ears?

 

[aaf evo]

Did any of you start to feel fatigue or pain in your ear after la ong season using the Fourte? My inner ear was a little sensitive after a couple hours. Also, does the deep base become fatiguing after a while.

I have yet to feel any fatigue but I’ve only had them in max 3 hours at one sitting.

 

[Blueshound24]

To me, the Tzar was more balanced and was without the Fourte's too much treble, and I was mightily impressed with the out of the head world class depth and soundstage. It just seemed so real and natural and alive from the breathy vocals to the slamming tight bass to the crystal clear crisp highs, and all that so coherent and flowing.

 

[Blueshound24]

I finally put my impressions together for these two wonderful IEM's.

64 Audio Review with Tia Fourte' and U18 Tzar

U18 Tzar:

Both the Fourte and U18 Tzar had great build quality, had a small size factor with a great cable and high quality connections. I used my own Spin Fits because I have always had good luck with them, and I didn’t even use the included tips. I kind of wish I would have tried some foam tips with the Fourte due to its (IMO) way too much treble. However I do not like the inconvenience with foam tips and the U18 was just right with Spin Fits and was my preference by a significant degree.

Both seemed to get along well with any source I fed them with, even my Galaxy S7 Edge did a fine job of driving either set. I preferred the light aluminum/silver colored Apex module over the darker one due to it was able to give an airier sound with more expansive sound staging. The dark module did give it more bass response and body but I preferred the airier sound of the silver one, (I think that is the M15?)

The first thing that stuck out at me with the U18 was as advertised on 64 Audio’s web page was its startling “out-of-this-world depth and soundstage”. This is very addicting and was unlike any IEM I have ever heard. I thought my vented Sony MDR 7550 excelled at this but the Tzar was on another level. The Tzar certainly has depth, width and height well beyond the outside of my ears, almost in a spooky kind of way how good it was.

The U18 is very balanced to my ears with no part calling attention to itself, unlike the Fourtes treble which seemed to be exaggerated to me. The vocals could be very breathy when called for and so real. The tone is fast, light, airy with great separation and air around instruments in space, with non-fatiguing crisp extended highs as well as all different voices and instruments emerging from a deep dark black background. This gave an exciting presentation but was very refined and smooth without any sibilance.

Micro-detail with fast treble detail, attack and decay were just right. Texture was astounding with realistic deep, slamming, tight bass with absolutely no bleed into the lower mids. With acoustic pieces, it portrayed the acoustic space of the venue with realism and depth with this out of your head experience.

These IEM’s are some of the only ones for me where High Rez really popped, especially any thing up to my highest rez 24/192. I have struggled to hear what Hi Rez was all about, but not with these, it is really very obvious with most cuts.

I haven’t heard many IEM’s that could keep up with all different kinds of music without a hiccup, and having world class depth and soundstage they were most like a VERY good set of open cans. In my notes I had written down numerous times: awesome separation, layering, micro-detail, so real, tight bass, great decay, texture, outstanding depth/width/height. Bright-dark-smooth-dynamic, flowing, clean, refined.



Tia Fourte':

So alive! Slamming bass but not overshadowing anything, with exciting, crisp, great, extended highs. However, as indicated prior, a little too much treble for me. Also, the Fourte didn’t have quite the expansive out of this world soundstage and depth as the U18. It is smooth, and the music flows like crazy, and has excellent separation, layering, micro detail as well as the U18. And it maybe might have a bit more body in the mids than the Tzar. Unfortunately the treble (for me) is a deal breaker, and the possible fix with foam tips for me is just too inconvenient to hassle with.

Conclusion:

It was very difficult to send these on to the next participant, and I have been working on how I am going to be able to afford a set of the U18 Tzar and cannot wait for it to happen. At times I suffer from Tinnitus and according to Roman with 64 Audio, the apex module is a controlled vent, so it’s not a fully closed system as other IEMs, so people experience less pressure and may experience less harmful loud music that might contribute to Tinnitus.

I want to give a big shout out of thanks to @Barra and 64 Audio for working together to make this tour possible.

 

[Barra]

Just wondering are we all using the same tips to place in our ears?

Many of us have our owns tips to use on these tour units. however, the tips can be reused with a good cleaning from an alcohol pad or silicone cleans easily with soap and water. The unit itself can be cleaned with an alcohol pad as long as you are not dousing it with water or overly aggressive.

 

[Blueshound24]

That's why was mentioning inserting them deeper. Doing so (plus a Schiit Eiter) corrected the issue I was having with the treble.

Probably should have mentioned it sooner, but hopefully it proves helpful to those still to receive the tour kits.

My digital front end chain is pretty smooth to me, (Industrial Intona Hi Speed Isolator -> UpTone Audio USB Regen -> Perfectwave II).
And I don't like deep insertion, so I think I will stick with my preference anyway, the U18 Tzar with Spin Fits.

 

[fiascogarcia]

Did any of you start to feel fatigue or pain in your ear after la ong season using the Fourte? My inner ear was a little sensitive after a couple hours. Also, does the deep base become fatiguing after a while.

I didn't notice any fatigue, pain, or sensitivity. I think the longest I wore them was around 4 hours. I suspect one possible cause might be attributed to the volume level we all listen at. I try to keep levels reasonably below the recommended 85 decibels, roughly determined using my sound level meter.

 

[fiascogarcia]

My digital front end chain is pretty smooth to me, (Industrial Intona Hi Speed Isolator -> UpTone Audio USB Regen -> Perfectwave II).
And I don't like deep insertion, so I think I will stick with my preference anyway, the U18 Tzar with Spin Fits.

Haven't tried my Spinfits on the Fourte yet, but the bore on Spinfits seems a little narrow to me. Do you notice any sq difference compared to other tips? Thanks.

 

[cellarbro]

Just received them. Will reach out tomorrow to the next person in line to organize the shipment. Thanks again for the opportunity to try these out.

 

[ericr]

Haven't tried my Spinfits on the Fourte yet, but the bore on Spinfits seems a little narrow to me. Do you notice any sq difference compared to other tips? Thanks.

While you weren't asking me, I'll chime in and say my experience is that tips with a bore narrower than the diameter of the nozzle hinder the expression of the Tia drivers.

TBH, I don't have the Spinfits, but have found this true with the Symbio, Sony Hybrid, and others.

 

[Blueshound24]

Haven't tried my Spinfits on the Fourte yet, but the bore on Spinfits seems a little narrow to me. Do you notice any sq difference compared to other tips? Thanks.

Sorry, I did not try any other tips. I was extremely happy with the U18's signature as they were and couldn't imagine them getting any better. OTOH, like I said, I may have thought more of the Fourte's with foam tips, but I doubt if they would have made that big of a difference with what I thought was way too much treble.