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The Astell & Kern AK240 - Page 283

post #4231 of 5382
2 ohm is advertised for the single ended 3.5mm HO. 1 ohm is advertised for the balanced HO.
http://www.astellnkern.com/eng/htm/ak240/ak240_spec.asp
post #4232 of 5382
Quote:
Originally Posted by shotgunshane View Post

2 ohm is advertised for the single ended 3.5mm HO. 1 ohm is advertised for the balanced HO.
http://www.astellnkern.com/eng/htm/ak240/ak240_spec.asp

Fixed my post.  I guess I've gotten them mixed up because Tyll said 3.24ohms instead of 1. It says 1ohm on the specs he posted on his website, look below. I guess he meant balanced??  :confused:  So, would single be double? Single ended being 6.48ohms?? That's not good.

 

From Tyll:

 

Output impedance is stated as 1 Ohm. I manually measure the output impedance using a 500Hz .WAV track. Full volume open circuit voltage of this track was 1.07 Vrms. Placing a 32.5 Ohm resistor across the output to ground reduced the output voltage to 0.973Vrms. This calculates to 3.24 Ohms. Measured resistance of probes and connections was about 0.3 Ohms. Out of interest I measured the AK120 I have here and got essentially the same figure at 3.29 Ohms.

 

AstellKern_AK240_Photo_Fronthart_Specs 


Edited by SilverEars - 7/14/14 at 4:54pm
post #4233 of 5382

Some cables from Peter at DHC (great work) to play around with:

  • One fusion cable with 2.5 balanced connector for AK240 with specific sockets for NT6
  • One 2.5 balanced to 3.5 SE adapter
  • One Siltech optical cable for AK240 to Hugo
  • One top class USB cable for the Hugo

 

post #4234 of 5382

Genuine question here : What is the point of the 2.5 balanced to 3.5 single ended adapter. I understand it if the device only has a balanced out but otherwise what is it needed for ?

post #4235 of 5382
Quote:
Originally Posted by Sauntere View Post
 

Genuine question here : What is the point of the 2.5 balanced to 3.5 single ended adapter. I understand it if the device only has a balanced out but otherwise what is it needed for ?

 

If you have a nice expensive balanced setup (Ref.1, 1plus2, K10, etc.) and you want to listen to your Tera, Hugo, or 'regular' TRS single ended DAP, the 2.5 TRRS to 3.5 TRS adapter allows you to do this without having to have to switch to (or own) a separate single ended cable.

 

The adapter is w-a-y cheaper than another cable...:cool: 

post #4236 of 5382

Yep ok that makes sense.

 

Cheers

post #4237 of 5382
Quote:
Originally Posted by burtomr View Post
 

 

If you have a nice expensive balanced setup (Ref.1, 1plus2, K10, etc.) and you want to listen to your Tera, Hugo, or 'regular' TRS single ended DAP, the 2.5 TRRS to 3.5 TRS adapter allows you to do this without having to have to switch to (or own) a separate single ended cable.

 

The adapter is w-a-y cheaper than another cable...:cool: 


True, and it avoids switching cables all the time, which is not the best for the sockets

post #4238 of 5382

I agree with Shigzeo about the poor marketing of A&K. If they are stupid enough to come out with a radically different AK240, I will be pissed, seriously.

 

Color changes, improving the volume wheel, better case in which the AK sits.......ok......'Bold New Graphics' is one thing, but a different DAC chip, different amp or major change in the 3 years since it came out........would be a major faux pas.  Hey, look up the whole knowledge doubling itself from the 1700s till now.  I think we are up to doubling our knowledge every 4-5 years whereas once upon a time it was 10, 15 times that, like every 60 years.  So naturally this means new inventions, better built wheels, etc much sooner.......but as Shigzeo so rightly points out, they are marketing to a specific customer and if they want to be a player in high end audio, iRiver must keep their customer in the forefront of there decision making.

 

I know this starred with the diff in sound question by kh600rr but this line of reasoning jumped into my head.

post #4239 of 5382
Quote:
Originally Posted by Mimouille View Post
 


True, and it avoids switching cables all the time, which is not the best for the sockets

Agreed.  I might get an adapter.

post #4240 of 5382
Quote:
Originally Posted by flymetothemoon View Post
 

Agreed.  I might get an adapter.

 

I bought a cable from Ted at Headphone Lounge for use with SE846, terminated with 2.5mm TRRS for balanced use with the AK240 and then have a 2.5mm TRRS to 3.5mm TRRS adapter for balanced use with HM901 and 2.5mm TRRS to 3.5mm TRS adapter for standard single-end use.  Very versatile without having to change the cables.


Edited by frankrondaniel - 7/14/14 at 7:45pm
post #4241 of 5382
Quote:
Originally Posted by frankrondaniel View Post
 

 

I bought a cable from Ted at Headphone Lounge for use with SE846, terminated with 2.5mm TRRS for balanced use with the AK240 and then have a 2.5mm TRRS to 3.5mm TRRS adapter for balanced use with HM901 and 2.5mm TRRS to 3.5mm TRS adapter for standard single-end use.  Very versatile without having to change the cables.

How do you find the two plugs stacked together...to tall for mobile usage?

post #4242 of 5382
Quote:
Originally Posted by flymetothemoon View Post
 

How do you find the two plugs stacked together...to tall for mobile usage?

 

Not at all - the plugs are connected by the same flexible material as the main cable.  no difference than having the main cable plugged in directly.  It works well.

post #4243 of 5382
Quote:
Originally Posted by frankrondaniel View Post
 

 

Not at all - the plugs are connected by the same flexible material as the main cable.  no difference than having the main cable plugged in directly.  It works well.

Thanks

post #4244 of 5382
Quote:
Originally Posted by flymetothemoon View Post
 

Thanks

 

The adapters really just effectively lengthen the main cable, so whatever sticks out of the AK240 on top is whichever plug I'm using (2.5mm or 3.5mm).  The rest just drapes over like main cable would by itself.

post #4245 of 5382
Quote:
Originally Posted by frankrondaniel View Post
 

 

The adapters really just effectively lengthen the main cable, so whatever sticks out of the AK240 on top is whichever plug I'm using (2.5mm or 3.5mm).  The rest just drapes over like main cable would by itself.

:)

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