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JDS Labs C5/C5D (pg96) portable amp/amp+DAC - Page 53

post #781 of 3339
Quote:
Originally Posted by thx1000 View Post

So you are comparing a headphone amp against an MP3 player for battery life and EQ flexibility?

I don't really compare them against each other. I know what I like when I hook them up w/ my headphones :)  

 

The Cowon S9 has pretty good output power, it can make T1 sound too loud to even put on my ears when set to highest volume (although I never really pair these together, only tested a couple of times). That's why I haven't bought a portable amp until now. I just want to try how my iPhone/iPods pair w/ a portable amp. For now I quite like the combo.


Edited by fengwei007 - 3/31/13 at 2:59am
post #782 of 3339
For those that is still on the fence or considering to get one I've compared my tube amp(has loads more power,less than a quarter turn on the volume knob to get the same volume level) with the C5 in high gain and level matched with the same SPL(pretty loud around 96db +/- 0.5 db) and it sounds the same(differences are negligible) to my ears. So for portable use you won't regret getting one.

 

post #783 of 3339

JDS Labs C5 portable amplifier appreciation + discussion thread (check 1st post

Quote:
Originally Posted by rckyosho View Post

For those that is still on the fence or considering to get one I've compared my tube amp(has loads more power,less than a quarter turn on the volume knob to get the same volume level) with the C5 in high gain and level matched with the same SPL(pretty loud around 96db +/- 0.5 db) and it sounds the same(differences are negligible) to my ears. So for portable use you won't regret getting one.

 


Wow!

That's quite a complement for the little fella, isn't it? smily_headphones1.gif
post #784 of 3339
Quote:
Originally Posted by kkfan View Post

Wow!

That's quite a complement for the little fella, isn't it? smily_headphones1.gif
I know.Just by comparing without level matching the volume, I feel that my tube amp sounds better but once level match I can't tell them apart.
But driving power hungry phones at home I would still use my tube amp although the C5 could drive them at decent level, the dynamics and effortlessness of my tube amp to drive these phones is still lacking with the C5 but like I said for portable use with portable phones the C5 sounds as good as my tubey.
post #785 of 3339

I was able to fix the forwardness of C5 by reducing my source output to 0.5 vrm. Now my EX-1000 sounds a lot more laid back while still maintaining just enough detail. I feel C5 will sound as good as what you feed it. However if what you feeding it is more than 1.0 VRM it becomes forward sounding 

post #786 of 3339
Quote:
Originally Posted by audionewbi View Post

I was able to fix the forwardness of C5 by reducing my source output to 0.5 vrm. Now my EX-1000 sounds a lot more laid back while still maintaining just enough detail. I feel C5 will sound as good as what you feed it. However if what you feeding it is more than 1.0 VRM it becomes forward sounding 

May I ask how do you reduce your source output to 0.5vrm?

post #787 of 3339
Quote:
Originally Posted by LoveKnight View Post

May I ask how do you reduce your source output to 0.5vrm?
there is no one way , with ODAC for example you can reduce the digital volume. With my iDac I did it using physical switches avaliable. ODAC has 2 vrm so I assume reduce the volume less than 50% should do the job
post #788 of 3339
Quote:
Originally Posted by rckyosho View Post

I know.Just by comparing without level matching the volume, I feel that my tube amp sounds better but once level match I can't tell them apart.
But driving power hungry phones at home I would still use my tube amp although the C5 could drive them at decent level, the dynamics and effortlessness of my tube amp to drive these phones is still lacking with the C5 but like I said for portable use with portable phones the C5 sounds as good as my tubey.

Like you said, we must consider the C5 for what it is: a portable amp above all else. Given that attribute, to be virtually indistinguishable from a much more powerful tube amp at a volume they can both comfortably drive is to speak volumes of the design of the C5 smily_headphones1.gif
post #789 of 3339

Today I decided to to an A/B test with Arrow 4G and C5: Cut the story using my AK100 as source and pairing with my reference IEM the Er4s C5 was a clear winner. Last time I trust my mind without listening to it.
I still prefer arrow for my low impedance IEM but for higher one C5 truly wins by a great margin.  

post #790 of 3339

I have Computer --> ODAC --> UM3X, Sennheiser HD580, Sennheiser MX580. 

 

I have been wanting to buy an amp for a long time but I am not sure that I need them?

I was going to buy the O2 but I also saw the imbalance issue. I almost always listen to music at low volume and sometimes, I do have imbalance issue with just outputting from ODAC. 

From the reviews I see, C5 is a relatively neutral(compared to other amps) amp that solves the imbalance issue that O2 has. C5 does have a little more forward mids than O2 but not dramatically so this will make the sound slightly warmer which I don't mind. 

 

Do you guys have any advice? Currently I do not really have a big problem with just my set up. But I want to see if you guys think my sound will be improved from using C5 or maybe I need higher class headphones before I need an nice amp?

post #791 of 3339
A little math equation: ER-4S + C5 + BT's "This Binary Universe" = Amazing.
post #792 of 3339

recieved the new case, i hope it doesnt have the same flaws of the original casing. 

post #793 of 3339
Quote:
Originally Posted by audionewbi View Post

recieved the new case, i hope it doesnt have the same flaws of the original casing. 
My new case us holding up much better...
post #794 of 3339
Quote:
Originally Posted by Mannes View Post

Hm I connected my c3 again now the c5 is burned in it does sound realy good it's more detailed than the iPod touch even I'm double amping now.
I am listening a lot to this setup I think I need a full size headphone now.

And a dedicated DAC. tongue.gif jk

post #795 of 3339
Quote:
Originally Posted by HybridCore View Post

And a dedicated DAC. tongue.gif
 jk

Well my findings are that the dac in the c3 is prety good but I must say I'm prety new at the mobile market.
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