The Watercooler -- Impressions, philosophical discussion and general banter. Index on first page. All welcome.

[jwilliamhurst]

I don't think it's been confirmed by 64 audio though? I believe it's a rumor.

Ah! Gotcha!

 

[drftr]

Ah! Gotcha!

I googled it for a bit and couldn't find any confirmation. Will send out an email to 64Audio and report back here.

drftr

 

[gazzington]

Fav stuff i bought in 2021:
1. Fiio fdx / sen ie900
2. 7hz timeless - bargain
3. Dx300 max or shanling m8
4. Earbuds!

 

[tgx78]

I was just having a quick conversation with @Precogvision about the U12T’s possible bass tuning revision. Nothing conclusive yet, but he did measured 2 additional samples with the new logo and they both showed a bit more bass than his OG U12T.

I will eventually order one for myself from 64 Audio so there will be another entry to the data base.

 

[drftr]

I think you have to take into account bad matching as well. I think it was Crin's measurements where you can see an even bigger divergence between the left and right channel than what Precog finds between 2 different samples.

I've sent them an email already and I'll either get back a smiley or some explanation. Well, in theory...

EDIT: See Crin's S1 measurements that show the big divergence between L and R.

https://crinacle.com/graphs/iems/graphtool/?share=IEF_Neutral_Target,U12t

drftr

 

[tgx78]

This is @hlee227 ’s U12T (old logo) I measured last week. Here, channel matching is pretty much flawless.

@Precogvision ’s own unit. Very similar bass rise at around 300Hz compared to the newer logo version that rises around 400Hz.

 

[drftr]

This is @hlee227 ’s OG U12T I measured last week. Here, channel matching is pretty flawless.

Sure, but what I'm trying to say is that if there are samples where L and R measure very differently, then the next 2 samples COULD have well-matched channels that eother look like the previous L channel, or like the previous R channel. Apparently they were all within specs. But those 2 IEMs will sound quite differently as a result. I mean, you're not going to hide a 3 dB difference because that's about 23% louder. So maybe what people considered a retune simply meant they compared the last 2 samples I described: One being tuned as the L channel, and one being tuned as the R channel.

drftr

 

[HiFiHawaii808]

I was just having a quick conversation with @Precogvision about the U12T’s possible bass tuning revision. Nothing conclusive yet, but he did measured 2 additional samples with the new logo and they both showed a bit more bass than his OG U12T.

I will eventually order one for myself from 64 Audio so there will be another entry to the data base.

that is notable difference in bass measurement. It's a warmer signature that is more likely to blend with the lower mids. It's not necessarily a bad change, but it is different. Will probably lose some clarity in exchange for some additional warmth and should improve male vocals.

 

[tgx78]

Sure, but what I'm trying to say is that if there are samples where L and R measure very differently, then the next 2 samples COULD have well-matched channels that eother look like the previous L channel, or like the previous R channel. Apparently they were all within specs. But those 2 IEMs will sound quite differently as a result. I mean, you're not going to hide a 3 dB difference because that's about 23% louder. So maybe what people considered a retune simply meant they compared the last 2 samples I described: One being tuned as the L channel, and one being tuned as the R channel.

drftr

Yeah. Probably best not to speculate anything until you hear from 64 Audio.

 

[drftr]

Yeah. Probably best not to speculate anything until you hear from 64 Audio.

Of course the bigger issue here is why they allow soooo much divergence between channels and samples. I mean, they don't play in Timeless territory, right? I could see this could potentially F up imaging among other things.

drftr

 

[tgx78]

Of course the bigger issue here is why they allow soooo much divergence between channels and samples. I mean, they don't play in Timeless territory, right? I could see this could potentially F up imaging among other things.

drftr

Sorry.. did you just ordered the U12T from 64 Audio? I wouldn’t worry too much. This happens to all manufacturers. I believe 64 Audio so far shown a good track record. I guess you missed the VE7 channel matching fiasco.

 

[Xinlisupreme]

Not yet but will do and report before I put the classified up today for RS6

Thank you my friend

 

[Xinlisupreme]

I have Serial ordered but it hadn't shipped yet and I was debating cancelling and upgrading to something else from Penon - going to stick with it now on the basis of your impressions, seems a good place for me to dip my toe in with Penon IEMs.

Linsoul shipped Timeless already, I'd expect that now by Wednesday hopefully!

So 2 IEMs and a dac/amp on your way

 

[drftr]

Sorry.. did you just ordered the U12T from 64 Audio? I wouldn’t worry too much. This happens in all manufacturers. I believe 64 Audio so far shown a good track record. I guess you missed the VE7 channel matching fiasco.

Tnx for the reassuring words. I actually wasn't worried but it did puzzle me when I started looking into measurements some months ago. I think you're the exception here, but there must be many with IEMs (of any brand indeed) of which the L channel measures and sounds quite different from the R channel without ever finding out why they don't have that click with their IEMs that others have. At these price levels I think it would be absolutely great if manufacturers would simply include measurements for the specific IEM someone buys. Even if it's within building tolerances I think we'd have the right to know.

Luckily I missed out on the VE7 story. That was one of the survivors on my shortlist.

drftr

 

[tgx78]

Tnx for the reassuring words. I actually wasn't worried but it did puzzle me when I started looking into measurements some months ago. I think you're the exception here, but there must be many with IEMs (of any brand indeed) of which the L channel measures and sounds quite different from the R channel without ever finding out why they don't have that click with their IEMs that others have. At these price levels I think it would be absolutely great if manufacturers would simply include measurements for the specific IEM someone buys. Even if it's within building tolerances I think we'd have the right to know.

Luckily I missed out on the VE7 story. That was one of the survivors on my shortlist.

drftr

My HD800 came with individualized frequency response graph, but it was useless as you can see here. NFT worth pixel art right there lol.