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[NEW] Audio Technica CKR series (CKR10, CKR9, CKR7) - Page 16

post #226 of 793
Quote:
Originally Posted by blazer78 View Post

 

If I read correctly, one of the drivers is wired out of phase, that to me would seem to create alot of problems pertaining to a natural sounding configuration.

 

Your understanding is not quite correct. The drivers are wired in opposite phase, but they also face opposite each other so they are actually mechanically in phase. This is what the 'push pull' design is - one driver pulls when the other one pushes, etc.

 

From the following page:

 

http://www.danmarx.org/audioinnovation/theories.html

 

Quote:
Two drivers share an acoustic volume of air within a single enclosure.  The best way to take advantage of this alignment is to mount one driver facing outwards with the other driver inverted and facing inwards.  The drivers are then wired so that they are electrically out of phase while remaining mechanically still in phase with one another.  Odd ordered harmonics are cancelled out by using this approach according to Vance Dickason.  According to M&K who specialize is push/pull subwoofers claim that this approach cancels out even ordered harmonics.  So take your pick.  Either way, harmonic distortion is reduced in that any anomalies or variations in the two driver's spider, cone or suspension characteristics are canceled out by the other driver's inversely proportional anomalies and variations.  The sound is said to be as accurate and pure as it can possibly be with each driver "correcting" the other driver.  

 

The Vance Dickason that the author mentions is actually a famous writer of speaker design textbooks. I have a copy of one of these textbooks for my DIY speaker projects. Tomorrow I'll pull up what he has to say about push pull driver configurations, but I think it should be clear that having the driver wired out of phase is a deliberate attempt to overcome distortion products. 

 

Another prominent example of a push pull design would be the Sonos SUB, which I think you might have all seen in electronics stores. It's interesting stuff.

post #227 of 793
Quote:
Originally Posted by a_recording View Post
 

 

Your understanding is not quite correct. The drivers are wired in opposite phase, but they also face opposite each other so they are actually mechanically in phase. This is what the 'push pull' design is - one driver pulls when the other one pushes, etc.

 

From the following page:

 

http://www.danmarx.org/audioinnovation/theories.html

 

 

The Vance Dickason that the author mentions is actually a famous writer of speaker design textbooks. I have a copy of one of these textbooks for my DIY speaker projects. Tomorrow I'll pull up what he has to say about push pull driver configurations, but I think it should be clear that having the driver wired out of phase is a deliberate attempt to overcome distortion products. 

 

Another prominent example of a push pull design would be the Sonos SUB, which I think you might have all seen in electronics stores. It's interesting stuff.

 

Ahh thank you, that was an interesting read. I own the PV1D subwoofer (dual driver design) actually in a dual opposing concentric configuration to improve pressure distribution inside the cabinet.

 

Not entirely sure about the phase wiring for the CKR though. The example on DM is somewhat different to the actual configuration used by audio technica, as they have concentric drivers facing each other (as opposed to one into the cabinet and one out). If I remember correctly, back in winter NAAM2012, JBL released the dual compression driver the "D2" which was very similar in concept to audio technica's CKR solution. I believe it stands however, that such configurations are very difficult to implement successfully because of chamber design (small for an earphone) which has a higher probability to attenuate the higher frequencies. Particularly when we are dealing with full range sound, we have a wider range of harmonics to account for.

 

It will be interesting to hear what Vance has to say, but most likely a reduction in non-linear distortion (which should be very hard to discern in good modern drivers anyhow) and improved power handling.


Edited by blazer78 - 5/7/14 at 9:06am
post #228 of 793

Still trying to find other places to buy from/compare prices. Looking for the better deal. =D Every time I decide on an IEM, another one pops up some where.

post #229 of 793

CKR10's are in the house.  Impressions and some pictures tonight.

post #230 of 793
Quote:
Originally Posted by DannyBai View Post

CKR10's are in the house.  Impressions and some pictures tonight.

Fantastic, I cannot wait for your impressions smily_headphones1.gif

I can finally revisit the comparos with the it's and sony. I hope it will alleviate anyone's dilemma regarding purchasing decisions.
post #231 of 793

I got them in my ears right now but I'll have to listen to a few different genres before putting anything up but the sound I'm hearing is a departure from the usual house AT sound, especially in the treble region.  Some pics. for a teaser.  

 

 

 

 

 

 

 

post #232 of 793

Cant wait till I get mines. Those look really nice.

post #233 of 793

Build is fantastic and fit is great.  The JVC spiral tips fit perfect and opens up the sound more. 

post #234 of 793
Nice pictures! Ill provide some comparison pics so we can tell differences in the cable department.

The treble is more or less relaxed, isnt that right? Not sparkly as i usually expected it.

The bass is an improvement in audio technica house sound.
Edited by vlenbo - 5/9/14 at 2:56pm
post #235 of 793
Quote:
Originally Posted by vlenbo View Post


Nice pictures! Ill provide some comparison pics so we can tell differences in the cable department.

The treble is more or less relaxed, isnt that right? Not sparkly as i usually expected it.

The bass is an improvement in audio technica house sound.

Yep exactly what I'm hearing vlenbo.  I was expecting more sparkle for sure.  Bass is good but big and mid-bass.  Not sure I wanna call it a hump but it's there.  Vocals are not recessed and sound really good but needs that air.  More to come later.  These are gonna need a good burn.

post #236 of 793
Quote:
Originally Posted by DannyBai View Post

Yep exactly what I'm hearing vlenbo.  I was expecting more sparkle for sure.  Bass is good but big and mid-bass.  Not sure I wanna call it a hump but it's there.  Vocals are not recessed and sound really good but needs that air.  More to come later.  These are gonna need a good burn.

Wow, i expected the ckr10s to be sparklier+airier.

I can only assume that theyre being cautious with their sparkly treble for a more consumer friendly audience.

What surprises me is that midbass boldness it has. I thought rhe ckr10s ere to be the minitoor fersion of the ckr9s...

I hewr the bass small and controlled, huge when the recording caalls for it (i.e. daftpunk, beatles, phil colins, eric clapton, etc)

Enjoy then while burning them in though!
post #237 of 793
Quote:
Originally Posted by vlenbo View Post


Wow, i expected the ckr10s to be sparklier+airier.

I can only assume that theyre being cautious with their sparkly treble for a more consumer friendly audience.

What surprises me is that midbass boldness it has. I thought rhe ckr10s ere to be the minitoor fersion of the ckr9s...

I hewr the bass small and controlled, huge when the recording caalls for it (i.e. daftpunk, beatles, phil colins, eric clapton, etc)

Enjoy then while burning them in though!

Seems both are tuned similar then.  Might be worth it to get the 9's for cheaper.  These are far from being monitor type of sound.  Not sure if the bass intrudes since nothing is really recessed but it's bass heavy for sure.  I'm gonna let them burn in for a few hours and come back and throw some different music and report back.  I'm using Geek Out so I'll try something else later.

post #238 of 793
Quote:
Originally Posted by DannyBai View Post

Seems both are tuned similar then.  Might be worth it to get the 9's for cheaper.  These are far from being monitor type of sound.  Not sure if the bass intrudes since nothing is really recessed but it's bass heavy for sure.  I'm gonna let them burn in for a few hours and come back and throw some different music and report back.  I'm using Geek Out so I'll try something else later.

Weird, thank you very much for your inputs danny!

I bet itll improve after burnin.

Just two quick questions, what songs were you listening to?

Does thebbass lighten up in some songs?
post #239 of 793
Quote:
Originally Posted by vlenbo View Post


Weird, thank you very much for your inputs danny!

I bet itll improve after burnin.

Just two quick questions, what songs were you listening to?

Does thebbass lighten up in some songs?

I was mainly listening to some Kanye, A Perfect Circle and some electronic stuff.  I'll have to try some acoustic, vocal and so forth later tonight.  Really odd but I went away for about an hour and had these cranked to burn them in and now I'm hearing much more treble.  Seriously perplexed.  

post #240 of 793
I think the cobwebs are gone. Insane bass is happening.
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