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JDS Labs C5/C5D (pg96) portable amp/amp+DAC appreciation + discussion thread - Page 124

post #1846 of 2744
Thread Starter 
Maybe its my phone being stupid. Well I've been using it just as an amp with my iPod and the Westone UM Pro30, great combo but still on the darker side of sound. Love the C5 amp section (gave the C5 to my brother last year, couldn't remember what I was missing out on haha)
post #1847 of 2744
I didn't realise that JDS Labs actually switched over to the bright dipping technique for the finish on all of their devices. The C5 unit I have is an early production unit then because there was someone else at the meet with a C5, but it was a lot brighter in colour and had a slippery smooth finish somewhat similar to that of the C5D unit I have.

Someone else at the meet also had a C5D and was using it with the Lightning Camera Connection Kit.
post #1848 of 2744

I thought i would just provide some feedback with the C5D and the HD598.  I am coming from a xonar stx and HD598, and the cowon j3 and westone 4.  It is nothing fancy, but i have to say i was considering buying the HE-400 as an upgrade - however after hearing what the C5D sounds like, it is really a noticeable improvement for the HD598!  I am no real audiophile, so I hope i get the terms right in terms of describing the sound.  I tried this with classical (mostly), rock, pop.

 

IMO It noticeably opens up the HD598's.  It sounds very airy with this and it seems a bit more accurate imaging wise, perhaps because of a bit better detail.  I don't really think these 'add' any real brightness, it seems to be quite neutral. The bass boost (medium position) seems to give just the right amount for these headphones.  It can be put on the max and the bass does not take over the music, it adds that extra punch for songs that would warrant having it.

 

I am hard pressed to find any major difference in the DAC performance (STX -> C5D (amp) -> 598) or (C5D (dac/amp) -> 598).  I think the amp makes the biggest difference by far.

 

The real advantage IMO is being able to use this with my laptop as it was having trouble driving the HD598's which should be fairly easy to drive.  In any case, this brings the same sound when travelling in a very portable format.

 

The westone 4 i didn't feel warranted an amp, but from the laptop again, its far better using the C5D.  I wont comment on the SQ difference as i didn't hear it long enough.  Nevertheless I am very pleased with it!

post #1849 of 2744
Thread Starter 

Just using the amp section:

 

post #1850 of 2744

Silly, simple question:  can you adjust balance left to right with either the C5 or C5D?

 

I'm realizing that I have a slight hearing deficiency in my left ear when I use my full sized (well compact) headphones...and I'd like to be able to shift the balance slightly to the left while using an amp.  I picked up a C&C BH2 to see if maybe it was an issue with my E12, but alas, it's my ears and not the equipment.  So just wondering if either model supports that...I would assume not since I've read most of this thread and I haven't seen anything mentioned, nor does it have a display of some sort to know where you stand.  I'll probably end up having to go back to the e17.

post #1851 of 2744
Quote:
Originally Posted by dbdynsty25 View Post
 

Silly, simple question:  can you adjust balance left to right with either the C5 or C5D?

 

I'm realizing that I have a slight hearing deficiency in my left ear when I use my full sized (well compact) headphones...and I'd like to be able to shift the balance slightly to the left while using an amp.  I picked up a C&C BH2 to see if maybe it was an issue with my E12, but alas, it's my ears and not the equipment.  So just wondering if either model supports that...I would assume not since I've read most of this thread and I haven't seen anything mentioned, nor does it have a display of some sort to know where you stand.  I'll probably end up having to go back to the e17.

 

Not directly with any "standard controls".  John would have to tell you if it were possible with arduino or something.  No idea on that.  But out of the box, no.

post #1852 of 2744
I'm pretty sure you can't even with the Arduino board.
post #1853 of 2744
Quote:
Originally Posted by miceblue View Post

I'm pretty sure you can't even with the Arduino board.

 

Didn't think so, but didn't want to say as I wasn't 100% sure.  I doubted it though.  You could make a balance device yourself if you are geeky enough. :-)  Sort of like an inline volume control for headphones, but make it per channel.

http://www.laboratoryb.org/project-headphone-volume-control/

 

Or even just the louder channel so you can turn that one down.  Just a though.  You could then use that for every device you use since it's your ear.  Just a thought.

 

Or you could buy one :-P  http://www.amazon.com/Sennheiser-HZR-62-Stereo-Volume-Control/dp/B000H0K8VY/ref=sr_1_1?ie=UTF8&s=electronics&qid=1275937961&sr=8-1&tag=vglnk-c43-20

 

Lastly, if you're a real geek, you could find out exactly what value of the volume control makes the loud ear match the quiet ear.  Do this with a multi meter.  Then you could buy the proper resistor and simply solder it inline with your headphones, or make an adapter to plug your headphones into with the resistor in one channel.  Then you'd have a permanent, easy to use volume matching device with no moving parts or low quality materials.  Just get a good tolerance resistor.  That's probably what I'd do. ha.  Cheap too.  A few bucks probably.

 

The only downside would be if for some reason your headphones were negatively affected by the resistor.  Depends on the headphones.


Edited by luisdent - 1/8/14 at 1:30pm
post #1854 of 2744
Quote:
Originally Posted by luisdent View Post
 

 

Didn't think so, but didn't want to say as I wasn't 100% sure.  I doubted it though.  You could make a balance device yourself if you are geeky enough. :-)  Sort of like an inline volume control for headphones, but make it per channel.

http://www.laboratoryb.org/project-headphone-volume-control/

 

Or even just the louder channel so you can turn that one down.  Just a though.  You could then use that for every device you use since it's your ear.  Just a thought.

 

Or you could buy one :-P  http://www.amazon.com/Sennheiser-HZR-62-Stereo-Volume-Control/dp/B000H0K8VY/ref=sr_1_1?ie=UTF8&s=electronics&qid=1275937961&sr=8-1&tag=vglnk-c43-20

 

Lastly, if you're a real geek, you could find out exactly what value of the volume control makes the loud ear match the quiet ear.  Do this with a multi meter.  Then you could buy the proper resistor and simply solder it inline with your headphones, or make an adapter to plug your headphones into with the resistor in one channel.  Then you'd have a permanent, easy to use volume matching device with no moving parts or low quality materials.  Just get a good tolerance resistor.  That's probably what I'd do. ha.  Cheap too.  A few bucks probably.

 

The only downside would be if for some reason your headphones were negatively affected by the resistor.  Depends on the headphones.

 

Yeah...all great ideas, but I'm not really into all of that resisters and whatnot.  Just want a simple, great sounding amp/dac to take care of it.  LOL...so back to Fiio I go I suppose.  

 

Thanks for the tips guys...much appreciated.

post #1855 of 2744

Considering looking at a c5d as a portable dac/amp combo. But based on what I've managed to read from this thread, most of you are c5 owners and generally people have not noticed too much change going from source to source with the c5d.

Any of you c5d owners can comment on the built in dac vs the odac?

post #1856 of 2744
Quote:
Originally Posted by miceblue View Post

I'm pretty sure you can't even with the Arduino board.

 

There's no reason channel balance couldn't be programmed. It would require some extra thought is all.

Reply
post #1857 of 2744
Quote:
Originally Posted by jseaber View Post

Quote:
Originally Posted by miceblue View Post

I'm pretty sure you can't even with the Arduino board.

There's no reason channel balance couldn't be programmed. It would require some extra thought is all.
Oh really? : o
That would make for an interesting programing exercise. I didn't know it was possible to control the left and right audio channels separately given the nature of the current code.
post #1858 of 2744
Quote:
Originally Posted by jseaber View Post

Quote:
Originally Posted by miceblue View Post

I'm pretty sure you can't even with the Arduino board.

There's no reason channel balance couldn't be programmed. It would require some extra thought is all.
Cool. I wasn't sure because i didn't know if the code had access to the independent channels in any way... That's cool.
post #1859 of 2744
Quote:
Originally Posted by miceblue View Post


Oh really? : o
That would make for an interesting programing exercise. I didn't know it was possible to control the left and right audio channels separately given the nature of the current code.

 

You'd have to heavily alter the volume control function and pushbutton behavior. Code already addresses the Left and Right potentiometer gangs independently, one after the other. This would be a major rewrite of existing firmware.

Reply
post #1860 of 2744

Can't wait to get my C5D. I have to wait a few weeks until the girlfriend will let me buy it.. Doh! Thanks for the reading, guys. 

 

I demo'd one today, absolutely loved it. 

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