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Audio Technica updates their open headphones "AD" Series: AD2000x, AD1000x, AD900x, AD700x and... - Page 45

post #661 of 1856
Quote:
Originally Posted by a_recording View Post

Got my AD900X video review up :)

 

I've also posted a comparison of the AD900X and MA900 here: http://www.head-fi.org/t/654161/review-comparison-ath-ad900x-vs-ma900-its-over-900

 

In the end I think I could highly recommend both headphones. They both have relative strengths and weakness for a similar price. I prefer the MA900 but I think most people would be happy with either.

 

I haven't yet had a chance to go to your thread, or watch the ma900 video (which I will do), but the above video was good. Nice work!

post #662 of 1856
Today I facepalmed myself so hard due to being a bit stupid, I currently have a relative visiting Tokyo, but did not ask her to use this opportunity to buy a pair of headphones for me (it probably would have been the a900x over the ad900x due to always listening in an environment that's slightly noisy). Ah well, guess I will simply have to wait tongue.gif and buy it in the future using tenso.
post #663 of 1856

had a short audit on the ad2000x, ad900x and ad700x.

great cans! ad2000x was amazing

post #664 of 1856
Quote:
Originally Posted by ss2625 View Post

had a short audit on the ad2000x, ad900x and ad700x.

great cans! ad2000x was amazing

 

Super, I have a pair on the way!

post #665 of 1856
Quote:
Originally Posted by Carlsan View Post

 

Super, I have a pair on the way!

 

ah envious! actually. im also envious of what u have in your sig :P

post #666 of 1856
Quote:
Originally Posted by ss2625 View Post

 

ah envious! actually. im also envious of what u have in your sig :P

Granted, slowly, I am trying to sell off some of my gear.

 

After all, as my wife says, "You only have two ears, why do you need so many headphones!" frown.gif

post #667 of 1856
Quote:
Originally Posted by Carlsan View Post

Granted, slowly, I am trying to sell off some of my gear.

 

After all, as my wife says, "You only have two ears, why do you need so many headphones!" frown.gif

 

if i had a wife, i would ask her why she needs so many shoes when she only has 2 feet....

post #668 of 1856
Quote:
Originally Posted by yamichan View Post

I just read his review and it seems the only thing that E12 won over c421 is bass. However, what I'm looking for is cleaner midrange and larger soundstage 'cause my E10 adds a little too much warmth to AD900x and the ss is even worse than plugging directly to my iPad.
His review also mention that O2 beats E12 in most tests, and according to several people, C5 sounds quite identical to O2, Guess I'll try the C5 then. It's not that I have huge budget but I don't want to spend on 100$ amp since the differences might be very negligible coming from E10.
Please excuse my ignorance but can anyone please give me the whole names of:
C5
E12
C421
I know only the O2 smily_headphones1.gif
post #669 of 1856
Quote:
Originally Posted by ss2625 View Post

if i had a wife, i would ask her why she needs so many shoes when she only has 2 feet....
the women with always test the man.
Our job to stand firm & be a model of stability and solidness for them to lean on.
So in other words, no argument, just say no...
wink.gif
post #670 of 1856
Quote:
Originally Posted by Maxx134 View Post


Please excuse my ignorance but can anyone please give me the whole names of:
C5
E12
C421
I know only the O2 smily_headphones1.gif

Please go to jdslabs.com and check their portable headphone amplifiers: C421 and C5 (an the O2).

 

 

The E12 is a portable amp from FiiO. See the thread:

http://www.head-fi.org/t/620339/fiio-flagship-portable-amp-mont-blanc-e12-discussing-thread-the-pre-order-unit-arrives

 

 

Also, do not miss this:

http://www.head-fi.org/t/649174/review-fiio-e12-comparison-to-c-c-bh-jds-labs-o2-jds-labs-c421


Edited by JakeJack_2008 - 3/6/13 at 11:27am
post #671 of 1856
Quote:
Originally Posted by a_recording View Post

Got my AD900X video review up :)

 


In the end I think I could highly recommend both headphones. They both have relative strengths and weakness for a similar price. I prefer the MA900 but I think most people would be happy with either.

Did you ever mention the MA900 with 70mm drivers, Sensitivity104 dB, Impedance12 ohms, weighs less than 7 ounces (195g) , 5-40,000 Hz range.

 

Interesting specs.

 

Amps will have a hard time handling the 12 ohms as far as maintaining sound performance.

 

I think you described them a flat sounding in the end (no warmth), that would be phones that are good for mixing.

 

With that big driver, sounds will vary over the long haul as it breaks in.

 

No wonder they seem like a cheap build, they are so light.

 

The repositioning on your head, making for a different sound that you pointed out, worries me.

post #672 of 1856
Quote:
Originally Posted by razzz42 View Post

Did you ever mention the MA900 with 70mm drivers, Sensitivity104 dB, Impedance12 ohms, weighs less than 7 ounces (195g) , 5-40,000 Hz range.

 

Interesting specs.

 

Amps will have a hard time handling the 12 ohms as far as maintaining sound performance.

 

I think you described them a flat sounding in the end (no warmth), that would be phones that are good for mixing.

 

With that big driver, sounds will vary over the long haul as it breaks in.

 

No wonder they seem like a cheap build, they are so light.

 

The repositioning on your head, making for a different sound that you pointed out, worries me.

 

I am not terribly sure that the 12ohm figure makes much difference beyond the damping factor. The actual impedance is a pretty steady 12-20 ohms or so. I'm no electrical engineer and can't really comment on the effect.

 

I don't think I described them as flat in the end haha. They are balanced but definitely on the warm side.

 

They definitely have an odd mix of specs.

 

Imma going to put up my AD900X for sale soon and maybe put the money towards a AD1000X or AD2000X if anyone in Australia is interested :3

post #673 of 1856
I won't pretend to know electronics cause I really don't but I know to watch specs to make sure things are compatible. Mainly to get the sound expected out of equipment without wondering why something doesn't sound right. From this site, here is a general rule with amps.

 

Quote:
Originally Posted by khaos974 View Post

To make it simple, all headphones require a certain amount of power to be driven at a certain acoustic level, this is the sensitivity of the headphones, it's expressed in dB/mW (decibel per milliwatts).

Considering P = U^2 / R = R * I^2 (Power = Voltage squared divided by impedance = Impedance times Intensity squared) and headphones with the same sensitivity:

- with low impedance headphones you need more current to achieve the desired acoustic level.
- with high impedance headphones, you need more voltage to achieve the desired acoustic level.

In addition to that, there's always the damping factor to consider (headphone impedance / amplifier impedance), it's usually recommended to have a damping factor greater than 10, ie. with 300 ohms headphones, use an amp with a maximum output impedance of 30 ohms.

In short, with high impedance headphones, you need an amp with more voltage swing and with low impedance headphones an amp with more current capacity and a lower output impedance.

post #674 of 1856
Quote:
Originally Posted by razzz42 View Post

I won't pretend to know electronics cause I really don't but I know to watch specs to make sure things are compatible. Mainly to get the sound expected out of equipment without wondering why something doesn't sound right. From this site, here is a general rule with amps.

 

The thing is, I haven't encountered many (non-portable) amps that delivery high current / low z-out without also being able to drive most headphones with enough voltage. The Asgard / Modi doesn't seem to have such issues, nor does the Objective2, etc. Of course attaching 600ohm monsters is probably a different story but even with stuff that is hard to drive I never really seem to go above 12'o clock on the volume knob. So getting a good amp with low z-out seems like it would have a pretty broad compatibility.

 

I absolutely prioritised getting an amp with a low z-out (Asgard and then the Objective2) just because almost everything in my collection - Audio Technica and Sony cans - is low impedance. If you think the MA900 is low impedance, try the XBA-4 / 40 which dips down to 5ohms for parts of its impedance curve haha.

 

Btw whats the general consensus around the sound of the AD1000X? Is it more like the AD900X or the AD2000X I wonder...

post #675 of 1856

So... I was out on slickdeals today, and I found this offer for some brand new A900X for only 169.95 including free US shipping (instead of the usual 219$) on buydig. If any of you guys are interested, here's the link. Bizarelly, the buydig page doesn't show the price, but once you click add to cart you can check the price. I guess this is a great deal if you don't want to deal with tenso and I believe it's cheaper than ordering it from tenso through amazon jp

http://www.buydig.com/shop/product.aspx?sku=ATHA900X

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