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New JH Audio flagship! "Siren Series Roxanne" - Page 360

post #5386 of 8306
After 6 weeks
It's finally back!

post #5387 of 8306
Wow, looks nice. When your ready, please share your thoughts on them.
post #5388 of 8306
1507949_438384706293102_1867056106_n.jpg
post #5389 of 8306
Quote:
Originally Posted by sutjahjo View Post

Having made the previous comment, I don't think there is a better portable DAP than AK240. Sorry.

I wholeheartedly suggest you listen to the 901 then... biggrin.gif
post #5390 of 8306
Quote:
Originally Posted by headwhacker View Post
 

 

Why would you fixate yourself of finding an amp for Roxanne? It sounded good straight out of an iPhone 5. Even better on Hifi DAPs.

 

It sure is not about power which is what an amp is suppose to provide since Roxanne like any iems are very easy to drive and don't require much power.

 

I suggest you better look for a better DAP or source than a portable amp.

Hi, the only reasons for external amp I can think of are the output impedance is too high of the DAP, line-out is being used, or headphones needs more current.  I think if you double amp(amping the headphone output), I think you are hearing colored sound from the added distortion of the double amping, and I believe it amplifies the noise.  But, I always thought external amps give you more impact to the sound than internal amp, and don't know why.

 

Ok, the newer DAPs are still too small to have descrete components like the big DACs out there, so I don't know what they are doing to output better quality sound than the mainstream DAPs.  

 

Also, something I've noticed that my portables(smartphone or mainstream DAP), doesn't sound quite as good at my ODAC/O2 combo, and I believe it's the O2 using more descrete components than what you can fit in the newer hifi DAPs?  I personally think it's the ODAC as my HE-6 coming out of it to my Beta22 is clear as day.  Not sure what it is, but it does sound better to my ears.  :L3000:   But, I don't have a hifi DAP, and only tried the AK120 and 240 which both sounded fantastic to UERM.


Edited by SilverEars - 5/3/14 at 6:29am
post #5391 of 8306
Quote:
Originally Posted by Trogdor View Post

I wholeheartedly suggest you listen to the 901 then... biggrin.gif

Tried the Hifiman, I personally prefer the AK240.
post #5392 of 8306
Quote:
Originally Posted by SilverEars View Post
 

Hi, the only reasons for external amp I can think of are the output impedance is too high of the DAP, line-out is being used, or headphones needs more current.  I think if you double amp(amping the headphone output), I think you are hearing colored sound from the added distortion of the double amping, and I believe it amplifies the noise.  But, I always thought external amps give you more impact to the sound than internal amp, and don't know why.

 

Ok, the newer DAPs are still too small to have descrete components like the big DACs out there, so I don't know what they are doing to output better quality sound than the mainstream DAPs.  

 

Also, something I've noticed that my portables(smartphone or mainstream DAP), doesn't sound quite as good at my ODAC/O2 combo, and I believe it's the O2 using more descrete components than what you can fit in the newer hifi DAPs?  Not sure what it is, but it does sound better to my ears.  :L3000:   But, I don't have a hifi DAP, and only tried the AK120 and 240 which both sounded fantastic to UERM.

 

Only the previous AK models and ipods which I can see needs amping due to high OI, specially for very sensitive low impedance iems (<18 Ohms)

 

Fiio and iBasso has been producing very low OI DAPs for a while now. I don't think any new DAPs coming out soon would have a high OI.

 

As for discrete components, sounding better over opamps. I think it's more of a myth if we talk about driving very sensitive low impedance phone/iem. Also O2 uses opamps and not exactly of discrete components.

 

Don't get me wrong, a fully discrete design has it's merit/advantage over opamps if we are talking about hard to drive load that requires high voltage and current. Orthos from Hifiman would definitely benefit on a fully discrete amp design.

 

A fully discrete design might work against low impedance, sensitive load because each component in the chain introduces distortion/noise. If you have many components, it adds up and can be easily detected as hiss on low impedance phones.

post #5393 of 8306
Quote:
Originally Posted by headwhacker View Post
 

 

Only the previous AK models and ipods which I can see needs amping due to high OI, specially for very sensitive low impedance iems (<18 Ohms)

 

Fiio and iBasso has been producing very low OI DAPs for a while now. I don't think any new DAPs coming out soon would have a high OI.

 

As for discrete components, sounding better over opamps. I think it's more of a myth if we talk about driving very sensitive low impedance phone/iem. Also O2 uses opamps and not exactly of discrete components.

 

Don't get me wrong, a fully discrete design has it's merit/advantage over opamps if we are talking about hard to drive load that requires high voltage and current. Orthos from Hifiman would definitely benefit on a fully discrete amp design.

 

A fully discrete design might work against low impedance, sensitive load because each component in the chain introduces distortion/noise. If you have many components, it adds up and can be easily detected as hiss on low impedance phones

So discrete components picks up more noise than the components inside IC?  Hmm. ok.

post #5394 of 8306
Sorry I haven't been following any comments so this may be completely unrelated to current discussions
Double flange tips are still my favorite currently
No response from JH

I tried it with the hm801 stock and did not enjoy it one bit
Right now the sansa clip zip is keeping me busy with a touch of bass and treble boost
post #5395 of 8306
Quote:
Originally Posted by SilverEars View Post
 

So discrete components picks up more noise than the components inside IC?  Hmm. ok.

 

They emit their own noise, but the sum is much greater than a comparable opamp. Also not all discrete design and build are equal. It is easier to mess up a discrete amp if you have a single mismatched component.

post #5396 of 8306

I used to own a set of UE 10 Pro paired with a Ray Samuels SR-71 and the amp made a significant difference to the sound. During one flight I was really enjoying listening and my amp batteries died. I plugged the headphones directly into the iPod and after a little while I decided to rather not listen at all than to listen without the amp. I had become so used to how it sounded with the amp that it just was not as engaging without the amp. Without the amp I was more focused on what I was not hearing than what I was hearing so I just could not enjoy it.

 

That may sound strange to some but that is my personal experience.

 

I find the Roxanne's rather veiled compared to the UE10 Pro + SR71 combo but until I receive the Ray Samuels Intruder amp to pair with the Roxannes I will not put that down purely to the headphones. I am hoping though that burn-in will open them up a little.

 

On another note I do want to give some credit to JH Audio customer service. My case had a spelling mistake on it. I sent them an email asking for the procedure to fix it. Within 2 (maybe 3, I don't recall exactly) I received a brand new case.


Edited by tyeck - 5/3/14 at 2:43pm
post #5397 of 8306
I agree, using ipod or my Sony zx1, with the intruder it sounds much better.
post #5398 of 8306
Quote:
Originally Posted by chrispat88 View Post

After 6 weeks
It's finally back!

You ordered and received your unit in 6 weeks? That's fast.
post #5399 of 8306
Quote:
Originally Posted by joshuachew View Post

You ordered and received your unit in 6 weeks? That's fast.

He sent in for refit
post #5400 of 8306
Quote:
Originally Posted by OziasEvangeline View Post


He sent in for refit

 

Oh. Thanks. I thought that their turn around times are starting to get back to normal. Because I plan on getting a Roxanne (custom) when their turn around times are back to normal. For now, I'll have to live with the universal. 

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