[Dithyrambes]

Alright guys! Have fun with your new toys! I will just be getting a zx2, and using the rest of the money to get a Schiit gungnir multibit. Think its a better use of funds. Enjoy!

 

[gerelmx1986]

  Considering the only way to get the full features of the 1Z/1A, which is support for DSD (for those who happen to have it), I dont see the point of going single ended. 

Agree but until we get these 4.4mm jacks we should use TRRS as minimum

 

[Nomax]

Does anybody know the Vrms of sony's DAP?
Strong enough to drive HD800S/HE1000 at loud levels?
My Ak380 without Amp can not,with amp its perfect

REGARDS NOMAX

 

[nc8000]

Does anybody know the Vrms of sony's DAP?
Strong enough to drive HD800S/HE1000 at loud levels?
My Ak380 without Amp can not,with amp its perfect

REGARDS NOMAX

60 from 3,5 mm and 250 from 4,4

 

[Nomax]

60 from 3,5 mm and 250 from 4,4

Thanks but i want know the VRMS not the MW into 16 ohm

NOMAX

 

[nanaholic]

60 from 3,5 mm and 250 from 4,4

 
He said Vrms not mW.
 
You can use a converter to yield the results:
60mW @ 16ohm gives 0.98 Vrms
250mW @ 16ohm gives 2.0Vrms
 
Note that AK's official spec sheets shows their power output with no load, so a direct comparison can't be made at all. However someone did measure the AK380 with a 32ohm load before:
http://www.avhub.com.au/product-reviews/sound-image/astellkern-ak380-portable-music-playerdac-review-414055
 

ON THE BENCH
Into our 32-ohm test load the AK380’s output was a healthy 50mW

 
So the SE of the Sony is weaker for 60mW @ 16ohm, but the balance output would beat the pants off the AK380 standalone even if you assume less than perfect conversion (eg 250mW divided by 2 is 125mW, even if you assume 10-20% loss that's still 100mW which is double that of the AK380). 

 

[Whitigir]

He said Vrms not mW.

You can use a converter to yield the results:
60mW @ 16ohm gives 0.98 Vrms
250mW @ 16ohm gives 2.0Vrms

Note that AK's official spec sheets shows their power output with no load, so a direct comparison can't be made at all. However someone did measure the AK380 with a 32ohm load before:
http://www.avhub.com.au/product-reviews/sound-image/astellkern-ak380-portable-music-playerdac-review-414055


So the SE of the Sony is weaker for 60mW @ 16ohm, but the balance output would beat the pants off the AK380 standalone even if you assume less than perfect conversion (eg 250mW divided by 2 is 125mW, even if you assume 10-20% loss that's still 100mW which is double that of the AK380). 

Excellent information, and not to mention as a class D technology with it efficiency

 

[Nomax]

He said Vrms not mW.

You can use a converter to yield the results:
60mW @ 16ohm gives 0.98 Vrms
250mW @ 16ohm gives 2.0Vrms

Note that AK's official spec sheets shows their power output with no load, so a direct comparison can't be made at all. However someone did measure the AK380 with a 32ohm load before:
http://www.avhub.com.au/product-reviews/sound-image/astellkern-ak380-portable-music-playerdac-review-414055


So the SE of the Sony is weaker for 60mW @ 16ohm, but the balance output would beat the pants off the AK380 standalone even if you assume less than perfect conversion (eg 250mW divided by 2 is 125mW, even if you assume 10-20% loss that's still 100mW which is double that of the AK380). 

Thanks a lot from Austria.......i was hoping that this SONY DAP can drive all my OVER EARS(HD800S/HE1000)without optinal Amp,,,,,,my AK380 COPPER alone is also not strong enough....but with the AK AMP its enough Power and sounds Perfekt




NOMAX

 

[thatonenoob]

I'll measure it folks don't worry.  Give me a wee bit of time to get situated...still reelimg from z1r review.

 

[gerelmx1986]

 

He said Vrms not mW.

You can use a converter to yield the results:
60mW @ 16ohm gives 0.98 Vrms
250mW @ 16ohm gives 2.0Vrms

Note that AK's official spec sheets shows their power output with no load, so a direct comparison can't be made at all. However someone did measure the AK380 with a 32ohm load before:
http://www.avhub.com.au/product-reviews/sound-image/astellkern-ak380-portable-music-playerdac-review-414055


So the SE of the Sony is weaker for 60mW @ 16ohm, but the balance output would beat the pants off the AK380 standalone even if you assume less than perfect conversion (eg 250mW divided by 2 is 125mW, even if you assume 10-20% loss that's still 100mW which is double that of the AK380). 

Thanks a lot from Austria.......i was hoping that this SONY DAP can drive all my OVER EARS(HD800S/HE1000)without optinal Amp,,,,,,my AK380 COPPER alone is also not strong enough....but with the AK AMP its enough Power and sounds Perfekt


NOMAX

why not try lower Ohmnage cans with higher sensitivity

 

[nanaholic]

  I'll measure it folks don't worry.  Give me a wee bit of time to get situated...still reelimg from z1r review.

 
Would you happen to have AK gear to measure/direct comparison?  Cos the AK spec sheet is pretty useless in that regard as all their measuring condition is no load....

 

[Whitigir]

why not try lower Ohmnage cans with higher sensitivity

Doesn't matter, Utopia is lower ohms and higher sensitivity. The power delivery from a source is much different than the loudness at max volume.

 

[musicday]

Nomax if you are mainly after power and sound quality obviously get a Lotoo Paw Gold : 500 mW @ 32 ohm. Definitely will drive all your headphones.

 

[Whitigir]

Nomax if you are mainly after power and sound quality obviously get a Lotoo Paw Gold : 500 mW @ 32 ohm. Definitely will drive all your headphones.

Isn't LPG Class A amplification ? And the battery won't even come close to Walkman WM. Class A efficiency is only 30%, and class D is 90%...hell...if done right....100%. That means if we are talking efficiency alone, the 250mW per channel could be multiplied by 3X times to class A. Logically would be 750mW per channel from WM Walkman in comparison to class A .

Class D wiki

https://en.m.wikipedia.org/wiki/Class-D_amplifier

Class A

http://www.electronics-tutorials.ws/amplifier/amp_5.html

 

[proedros]

For those who heard the zx2 and habe the wm1a....could you comment if there is a sonic difference? I just tried this qp1r and was disappointed so I'm going back to the sony house sound. On the fence what to purchase. Wm1z too far off a stretch

 
how so ? i had the impression that qp1r sounds great , but i am very happy with the battery/functionality of zx2 so i am staying put for now

if it ain't broke don't change it

that is , until i can listen to 1A