Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › JDS Labs C5/C5D (pg96) portable amp/amp+DAC appreciation + discussion thread
New Posts  All Forums:Forum Nav:

JDS Labs C5/C5D (pg96) portable amp/amp+DAC appreciation + discussion thread - Page 42

post #616 of 2439
Quote:
Originally Posted by jonbmet View Post

 



I'm interested in this DAC too. Any review on how it pairs with the C5 will be appreciated. This may be a stupid question and not specific to the C5. If I'm using a LOD to feed an amp will my ipod's battery last longer? Seems like since it's not pushing the headphones it would consume less power...

Just to make it clear DD socket 1 is an iDevice DAC, it is not a DAC for your computer. It can charge your iDevice battery and hence prolong its battery however the downside is that it will reduce its own battery life. So it can be useful if you want to listen to high quality music via your phone but need your phone battery.

 

I am doing extensive batter testing on DD, the charge time is 5 hours give or take 30 minute, so that could be a factor for some!

More to come by end of the week.

post #617 of 2439

I dont think that is the case for me as I own and love my rocoo BA which has a reputation to be bright. I also enjoy my EX1000 which is also said to have a treble spike. I do not mind the C5 that much however the treble seems to be a lot when paired with HFI 780 but than again ultrasone is famous for its harsh treble. 

Quote:
Originally Posted by luisdent View Post

Is it possible that some users who find the c5 to be bright might actually just be used to amps that are lacking in brightness? I don't find the c5 bright with any phones. It is bright in the sense that it sounds accurate with treble though, just not any brighter than neutral to my ears. But I assume this might change with different phones and perhaps impedance and power handling? Perhaps those sort of things can change the sound if they vary enough? I know the c5 is less than 2 ohms, but I just mean driving capability and such...

It doesn't sound that much different than my iPods do frequency wise, and iPods measure very flat. Instead it sounds cleaner with more clarity (not brightness) and perhaps better dynamics. And much more power. Just a thought. Has anyone done any measurements themselves by chance? It's probably too early, but just thought id ask...
post #618 of 2439
Quote:
Originally Posted by gkanai View Post

The DD Socket 1 I am borrowing is the TI OPA 627 model.

http://www.ti.com/product/opa627

Nice, I wanted to get the OPA 627 but I heard that the 627 needs near perfect board design and therefore I was skeptic about it. I have the muses01 edition.

post #619 of 2439
Quote:
Originally Posted by audionewbi View Post

I dont think that is the case for me as I own and love my rocoo BA which has a reputation to be bright. I also enjoy my EX1000 which is also said to have a treble spike. I do not mind the C5 that much however the treble seems to be a lot when paired with HFI 780 but than again ultrasone is famous for its harsh treble. 

Do you mean the c5 does make them brighter to you? Or that they are already bright?
post #620 of 2439
Quote:
Originally Posted by luisdent View Post


Do you mean the c5 does make them brighter to you? Or that they are already bright?

What I meant is they are already bright and they come brighter from C5. I think I am a treble head but with those headphones the treble becomes a tad bit higher than what I like. However once again I have not listen to it the way I normally do, it could have been my tired ears as I listen to them late at night and i had a long day all the three time I paired them with C5.

 

So far the CK100PRO seem to have a magical synergy with C5. 

post #621 of 2439
Yea, I know that. They are back logged until the middle of next month.
post #622 of 2439
Quote:
Originally Posted by audionewbi View Post

What I meant is they are already bright and they come brighter from C5. I think I am a treble head but with those headphones the treble becomes a tad bit higher than what I like. However once again I have not listen to it the way I normally do, it could have been my tired ears as I listen to them late at night and i had a long day all the three time I paired them with C5.

 

So far the CK100PRO seem to have a magical synergy with C5. 

 

Ah, I see.  Give it time.  Your brain needs to adjust too.  :-)

post #623 of 2439
Quote:
Originally Posted by luisdent View Post

Is it possible that some users who find the c5 to be bright might actually just be used to amps that are lacking in brightness? I don't find the c5 bright with any phones. It is bright in the sense that it sounds accurate with treble though, just not any brighter than neutral to my ears. But I assume this might change with different phones and perhaps impedance and power handling? Perhaps those sort of things can change the sound if they vary enough? I know the c5 is less than 2 ohms, but I just mean driving capability and such...

It doesn't sound that much different than my iPods do frequency wise, and iPods measure very flat. Instead it sounds cleaner with more clarity (not brightness) and perhaps better dynamics. And much more power. Just a thought. Has anyone done any measurements themselves by chance? It's probably too early, but just thought id ask...
 
iPods have higher output impedance than C5. Standard frequency response measurements don't account for this, so moving to a device with a different output impedance will change one's impression of a headphone's darkness/brightness. At 600 ohms, I suspect jonbmet is pushing C5 too hard. Output-Z shouldn't matter here. A lack of sufficient output power to drive peaks will impact the listening experience.

Edited by jseaber - 3/16/13 at 1:12pm
Reply
post #624 of 2439
Quote:
Originally Posted by jseaber View Post

 

 

Do you have have a list of their impedances?  I've only found that my 5th gen is .7ohms from some japanese blog page.  The classic is around 7ohm i believe.  I can't find any real data on this anywhere though....

post #625 of 2439
No list, just have a few measurements in memory from reliable sources (NwAvGuy, etc.).
Reply
post #626 of 2439
Quote:
Originally Posted by jseaber View Post

No list, just have a few measurements in memory from reliable sources (NwAvGuy, etc.).

I believe you. I could just never find a source. I can tell by ear though that my 5th gen touch is less than a few ohms. It doesn't color my earphones that are succeptable to output impedance like my classic does a bit. Very impressive. I'd say it is probably the .7 or so I read about. Unfortunately it has a very slight highest treble drop. I found a graph verifying what I always thought I heard as well. It makes the touch sound less high res in micro details. the c5 fixes that with the line out though :-)

Anyway, a bit off topic.
post #627 of 2439

Here is a list of output impedance for different devices: http://monoadc.blog64.fc2.com/blog-entry-99.html

 

It is not uncommon to find 1~3ohm on iDevice. Sometime they get better over generation and sometime worst, but overall still respectable.

post #628 of 2439
Quote:
Originally Posted by ClieOS View Post

Here is a list of output impedance for different devices: http://monoadc.blog64.fc2.com/blog-entry-99.html

It is not uncommon to find 1~3ohm on iDevice. Sometime they get better over generation and sometime worst, but overall still respectable.

Thanks clieos that is the exact list I was referring to!! It lists the 5th touch as .75

seems very good...
post #629 of 2439
Quote:
Originally Posted by ClieOS View Post

Here is a list of output impedance for different devices: http://monoadc.blog64.fc2.com/blog-entry-99.html

 

It is not uncommon to find 1~3ohm on iDevice. Sometime they get better over generation and sometime worst, but overall still respectable.


thats golden. cheers

post #630 of 2439

Hello all! Newbie here. I received my red C5 last week and a half ago and I am pairing it with my Grado SR225's and SR80i. The only other amp I could compare the C5 to is the Cmoy BB which turned me on to the headphone amplification pathway. The C5 is indeed a great buy.

 

I am in the market for IEMs with a budget within $100 - $150. I hear good things about HF5 Ety's and I was wondering how it sounds with the C5. 

 

I am open to other IEM recommendations too! As for what I am looking for as far as sound is concerned, I am leaning towards accuracy.

 

Thank you! I am all ears!

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Portable Headphone Amps
Head-Fi.org › Forums › Equipment Forums › Portable Headphone Amps › JDS Labs C5/C5D (pg96) portable amp/amp+DAC appreciation + discussion thread