Head-Fi.org › Forums › Equipment Forums › Portable Source Gear › Fiio X5 Thread - info updated on Jan 17th 2014
New Posts  All Forums:Forum Nav:

Fiio X5 Thread - info updated on Jan 17th 2014 - Page 100

post #1486 of 12172
H
Quote:
Originally Posted by JamesFiiO View Post

[snip]

4 OPA1612 worked as I/V convertor and low fass filer and votage amplifer.

[snip]

2 LMH6643 as buffer, each for one channel , and LMH6643 includes two channels in one chip.

[snip]

the amp section is powered by +/- 6V (12 V swing )

Hi James,

Some portable amps run their gain stages at a lower voltage when powered from the internal battery, but permit higher voltages that can be supplied from an extenal PSU.

Per the datasheet, OPA1612 can tolerate Vs as high as +/- 18V, but THD+noise is lowest when Vs is +/- 15V.

Will the X5 allow a higher Vs than +/- 6V when using an external power supply?

Thank you - it looks like a great product, so far!

Update: I realize this is a DAP, not intended to drive power hungry headphones. Line Out can be used for an external amp, if I want. :-)

Mike
Edited by zilch0md - 10/28/13 at 8:59pm
post #1487 of 12172

I think an important feature is a wireless remote control interface so the player can be easily used as a system component.  After testing the various DAPS I want to dedicate one to the home rig.  Kind of inconvenient though without though without a remote interface. 

post #1488 of 12172
Quote:
Originally Posted by In-A-Song View Post
 

I think an important feature is a wireless remote control interface so the player can be easily used as a system component.  After testing the various DAPS I want to dedicate one to the home rig.  Kind of inconvenient though without though without a remote interface. 

i disagree with this, as it's main function is being a portable music player, not a home audio system.

 

i can understand your need for this, but i think it has no place in this dap.

post #1489 of 12172
Quote:
Originally Posted by ClieOS View Post
 

 

I think it is very obviously not going to be any balanced headphone-out by looking at the opamp usage. To get balanced headphone, you will need 10 opamps instead of 6 (*double for everything after I/V stage).


Oh, I didn't know those technical details, thank you very much ClieOS, today I learned something new :happy_face1:

post #1490 of 12172
Quote:
Originally Posted by ClieOS View Post
 

 

I think it is very obviously not going to be any balanced headphone-out by looking at the opamp usage. To get balanced headphone, you will need 10 opamps instead of 6 (*double for everything after I/V stage).


means it is possible to have balance line-out? probably a RWX5 in the near future?

post #1491 of 12172

@James,

 

Would you consider making a portable amp, kind of E12 successor with OPA627? Portaphile 627 seems to be one of the best portable amps according to many people and I would like to learn if FiiO has a plan to use it? Also, more than 4 hours of battery would be nice as well (Portaphile 627 has only 4 hours of battery life).

 

Yeah, considering it to pair with X5.

post #1492 of 12172

not balanced DAP from FiiO cause there are very few balanced headphones/IEMs. about new amp, E12 still is the best partner for X5 and we will design a special  kits so people can use it bundle both together.

post #1493 of 12172
Quote:
Originally Posted by hoekeat View Post
 


means it is possible to have balance line-out? probably a RWX5 in the near future?

 

Mod'ing the X5 for a balanced line signal should be possible,

post #1494 of 12172
Quote:
Originally Posted by ClieOS View Post
 

 

Mod'ing the X5 for a balanced line signal should be possible,


Do you think RWA will do something like that? I would be interested honestly. Something like RWAK120-B.

post #1495 of 12172
Quote:
Originally Posted by AmberOzL View Post
 

Do you think RWA will do something like that? I would be interested honestly. Something like RWAK120-B.

 

A bit pre-mature don't you think?  Anyway you're asking the wrong people (us). 

 

This is who you should be asking: vinnie@redwineaudio.com

post #1496 of 12172
Quote:
Originally Posted by burtomr View Post
 

 

A bit pre-mature don't you think?  Anyway you're asking the wrong people (us). 

 

This is who you should be asking: vinnie@redwineaudio.com


You are right. Sorry for unnecessary question. Anyway for the moment I will try to use it stand alone dap. Then I will see if I feel like I need to go down to balanced route.

post #1497 of 12172
The playback time with 24 bit files will it be longer then 10 h?
post #1498 of 12172

Play time probably depends on the other # as well. Total bits processed per sec and whether there's lossless compression processor load but at least it can reproduce full 24 bit res.


Edited by goodvibes - 10/29/13 at 2:29pm
post #1499 of 12172

I am hoping more than 10 hours with 24 bit files, more is always welcome anyway.

post #1500 of 12172
Quote:
Originally Posted by AmberOzL View Post

I am hoping more than 10 hours with 24 bit files, more is always welcome anyway.

Not problem!
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Source Gear
Head-Fi.org › Forums › Equipment Forums › Portable Source Gear › Fiio X5 Thread - info updated on Jan 17th 2014