Just an added opinion based on my personal observations...

I don't have graphs or scientific information, just a set of ears and a desire to buy good sounding iems...

I have an app that plays test tones and I think Brooko is correct in the lows starting around 23 hz. With that being said, I own many iems that make sound, or vibrations, or whatever you want to call it at around 10-12 hz. Call it hearing super powers, or call it the driver vibrating, whatever it is, I say it's a sub bass layer.

These altone200 are awesome sounding phones. I have a good 6 hours on them and the sound has changed. Some will say it's more brain burn than actual sound change, and yada yada and so on...

Fact of the matter is that the highs don't seem nearly as harsh as when I first popped these things in. Also the bass has come forward, and is still punchy and tight. The tone is good, but there is not a sub bass layer in my opinion. Maybe it's the 20-23 hz that isn't on the human spectrum of hearing, or maybe it's something else. Maybe what I am describing in terms of "sub bass" which is something that is very apparent and noticeable in both the GR07BE and the DN1000, and not in the altone200, people can draw the conclusion that the bass on the DN1000and gGR07BE are bloated, and just the opposite some could say that the altone200 are missing that layer. This whole hobby is based on preference, and answers will either be "glass half full" or "glass half empty" based on that preference in sound.

Still, even with the subbass not being there these things are great, and we'll worth the money I paid.

Would I reach for the altone200 to listen to dubstep, pop, or edm? The answer is no, I have a Sony h3 for that.

Would I reach for the altone200 to listen to that new Amber Rubarth album, or some Dave Matthews Band? Absolutely! The altone200 is tuned perfectly for this type of genre.

Good addition mate. My brain is adjusting to the bass but it still sounds lacking.

I don't think Brooko would find the GR07 BE bloated but I'm hoping he gets to try them. I tried the H3 and minus the size, they were full in win bottom to top. Only one caveat on the H3 sound, and joker gets in on it, mid-bass. I found it didn't have excellent control and blurred the vocals a bit. That aside, vocals were still quite detailed and everything sounded lively without fuzz at the top.

Have you tried EX1000?

unityispower said:

Good addition mate. My brain is adjusting to the bass but it still sounds lacking.

I don't think Brooko would find the GR07 BE bloated but I'm hoping he gets to try them. I tried the H3 and minus the size, they were full in win bottom to top. Only one caveat on the H3 sound, and joker gets in on it, mid-bass. I found it didn't have excellent control and blurred the vocals a bit. That aside, vocals were still quite detailed and everything sounded lively without fuzz at the top.

Have you tried EX1000?

Click to expand...

 
This ^. If the H3 was tuned better in this area, it'll be my hybrid IEM of choice. For now, I'm settling with the Altone 200 as it seems to tick all the pertinent boxes for me.
 
Unity mate, can you try this track on your Altone and GR07BE? I'm now really quite curious how GR07 BE performs in the sub bass region.
 

Something like this sounds quite good.



Maybe this will help you gauge me Brooko. I liked the KC06 mid-to-highs more then the Tenore. They sounded clearer/sparkly without being stringent. That said, I would rather listen to the Tenore for one reason(sound wise), bass. I'm my mind, I'll sacrifice some of that clarity for a low end that doesn't sound hollow to me. On top of this, Tenores also sounded quite clean up top so I wasn't giving up much. Sadly it seems they have QC problems...

EX1000, best vocal presentation I've ever heard; Very spacious, airy, clear. So much so that I would actually think seriously about giving up my GR07 BE bass. These are phone I'd measure up under the criteria of phone number one. <-maybe I should link to what I mean....

Still, I didn't and provably wouldn't in the end but dayum was it beautiful. Altone somewhat reminded me of this sensation when I pulled up a Lachlan vid on the tubes. Not quite there(spaciousness for one) but very nice sound.

d marc0 said:

This ^. If the H3 was tuned better in this area, it'll be my hybrid IEM of choice. For now, I'm settling with the Altone 200 as it seems to tick all the pertinent boxes for me.

Unity mate, can you try this track on your Altone and GR07BE? I'm now really quite curious how GR07 BE performs in the sub bass region.

Click to expand...

Sure thing mate, I'm going to take a break but will get on it when I come back.

Has anyone else had issues with where the cable meets the housing?

Having used the Dunu 1000s for the past 4-6 months with no spacers (for full bass) the Altones sound a bit thinner.  BUT, there's plenty of bass. I think what I'm hearing (after an hour or so of listening, first in a chair and then on a walk-my normal listening experience) is a lack of a bass floor.  With the Dunus, everything in all instruments has bass notes that flood the soundstage, and the mids and highs pop out from that.  The Altones seem like they are more neutral in sound, with bass, mids and highs all getting equal treatment.  Each instrument, each note, sounds individual.  The Dunus have a denser, more full of timbre sound, the Altones have a clearer, cleaner, more transparent sound.  Bass notes are there, but they don't create a floor of sound.  They for the most part are more individualized.  I get less punch than with the Dunus but I get much more clarity.  After listening to the Altones for 40 minutes I plugged the Dunus in during the middle of a song and it sounded muddier by comparison.
 
Mids and highs are excellent.  Clarity is superb (and I really liked the Dunus in this area).  I can hear fingers on strings, lots of activity on the edges, acoustic guitars really pop.  Vocals are clear, and instrumental interaction is quite apparent.
 
I listen to 60s rock, folk rock, acoustic stuff, some pop, and the Altones are handling it all just fine.  Some mixes obviously are better than others, and that affects things as well.  I too am hoping after burn-in things improve slightly, but so far I'm liking them.  I think in a few days as my ears acclimate they will sound right.  Now, as I am comparing them to the Dunus, I am struggling with what sounds right.  
 
With all of that said, if you are the type of listener that loves major thump, these probably aren't going to do it for you.  

Joker actually claim that resolution and clarity of the altones beats dn1k and is on par with akg3003. With the Altones costing only 10% of the akgs,this is quite the achievement!

hisoundfi said:

Has anyone else had issues with where the cable meets the housing?

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the blue strain relief on mine wobbles. I think it could maybe fall off.

syedz2ez4 said:

Joker actually claim that resolution and clarity of the altones beats dn1k and is on par with akg3003. With the Altones costing only 10% of the akgs,this is quite the achievement!

Click to expand...

I agree with the clarity part re Dunu 1000.  Altones are clearly (hah!) better.  Smoother sound, too.  Individual notes are, well, individual.  For the money, these are really a great deal.

olddude said:

Having used the Dunu 1000s for the past 4-6 months with no spacers (for full bass) the Altones sound a bit thinner.  BUT, there's plenty of bass. I think what I'm hearing (after an hour or so of listening, first in a chair and then on a walk-my normal listening experience) is a lack of a bass floor.  With the Dunus, everything in all instruments has bass notes that flood the soundstage, and the mids and highs pop out from that.  The Altones seem like they are more neutral in sound, with bass, mids and highs all getting equal treatment.  Each instrument, each note, sounds individual.  The Dunus have a denser, more full of timbre sound, the Altones have a clearer, cleaner, more transparent sound.  Bass notes are there, but they don't create a floor of sound.  They for the most part are more individualized.  I get less punch than with the Dunus but I get much more clarity.  After listening to the Altones for 40 minutes I plugged the Dunus in during the middle of a song and it sounded muddier by comparison.

Mids and highs are excellent.  Clarity is superb (and I really liked the Dunus in this area).  I can hear fingers on strings, lots of activity on the edges, acoustic guitars really pop.  Vocals are clear, and instrumental interaction is quite apparent.

I listen to 60s rock, folk rock, acoustic stuff, some pop, and the Altones are handling it all just fine.  Some mixes obviously are better than others, and that affects things as well.  I too am hoping after burn-in things improve slightly, but so far I'm liking them.  I think in a few days as my ears acclimate they will sound right.  Now, as I am comparing them to the Dunus, I am struggling with what sounds right.  

With all of that said, if you are the type of listener that loves major thump, these probably aren't going to do it for you.  

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+100 for an "old dude" your impressions are spot on. "Bass floor" is exactly what I'm referring to in earlier posts. Well stated

Burn in is definitely improving the bass quality. Still not as much low end rumble as I would like, but definitely punches hard. It's not quantity, but more lower frequency that I'm looking for. They have come a long way with 15 hours of play however.

Edit: Might have defective pair, waiting for replacement unit.

d marc0 said:

This ^. If the H3 was tuned better in this area, it'll be my hybrid IEM of choice. For now, I'm settling with the Altone 200 as it seems to tick all the pertinent boxes for me.

Unity mate, can you try this track on your Altone and GR07BE? I'm now really quite curious how GR07 BE performs in the sub bass region.

Click to expand...

BE showcases deep rumble that's harder to discern on the Altone.

@:58.. O my. GR07 BE FTW

Because it's also higher in quantity, and/or the phones overall signature is better balanced, it gains some perceived dynamic the Altone lacks. What I mean to say here by dynamic is the rise and fall of the rumble has better depth cuz I can actually hear it, well.... rising and falling. The Altone is more like it peaks its head when at the climax of the rise and just disappears when falling. Not enough wiggle room and the other frequencies eat what little hope it has coming down by overpowering.

BTW, being I already broke my "only listening to Altone plan", this song sounds fantastic down low on my BE.

Joker's review (http://theheadphonelist.com/brief-review-dunu-dn-2000-fidue-a83-t-peos-altone200-sony-xba-h3-triple-driver-hybrids-compared/)
 

 The signature is still v-shaped, but the bass is excellent in both quantity and quality. 

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Enough said ........

Yikes! So after trying the new replacement tips, I managed to get a good seal on both ears. Turns out after all, the driver on the red marked side has markedly less bass than on the blue marked side. I chalked up the difference in bass to a lack of fit, but it became clear there was something wrong with the driver itself when I began to extensively test it with a proper seal. I confirmed this with my brother a couple of friends - they all noticed a distinct lack of bass presence (more toward the sub bass region). 
 
I will be contacting t-peos today, so hopefully this will be resolved soon.