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JH Audio Sirens Series Roxanne Impressions Thread - Page 36

post #526 of 894
Quote:
Originally Posted by SilverEars View Post

If you know how gain works, you would know why headphones hiss.  You state poorly implemented, explain in detail how well implemented works if you happen to be an expert on it.

I'm no stinking "expert" but I'm just curious of concept where an amp has to hiss to deliver power. Poorly implemented dac/amp have circults or low grade components that introduce noise, or are receptive to interference, and noise creep in during the amplification, and thus the higher the gain, the more this noise is amplified. But if the upstream (save for any background noise inherent in the recording), there is no noise to be amplified then regardless of the power output, their won't be hissing.

In any case, I have dac/amp/dap that hiss, I have those that don't. And I'm sharing my first hand experiences and not (il)logical conjectures. And it is that Hugo does drive my hd800 (other other's) well and don't hiss with IEMs that are regarded to be most sensitive and most intolerant of hiss. And yes Roxanne universal that I demo don't hiss also. Of course everyone is free to believe what he/she believes. wink.gif
Edited by kkcc - 6/25/14 at 7:16pm
post #527 of 894
Quote:
Originally Posted by SilverEars View Post
 

If you know how gain works, you would know why headphones hiss.  You state poorly implemented, explain in detail how well implemented works if you happen to be an expert on it.


I know that on my DX50 my Roxanne hiss on low gain but not on high (weird huh?)...whereas on the Asgard 2 the hiss is reduced on low and amplified on high. AK120 no hiss, studio V 3rd not only hiss but squelching noise (have to use an variable attenuator to get the hisounds internal volume up and control volume externally).  DX50 Line out to leckerton UHA760 no hiss.

 

When I listened to the hugo in a meet/expo environment I did not hear any hiss.  did not get eh chance to use my HD800 on it though, maybe next time.

post #528 of 894
If Hugo can drive HD800 and don't hiss on iems without a variable gain, I believe it's internal amp is fixed to a high gain and has a very low noise floor and/or better RF shielding. I'm no expert as well and have not tried it yet, but based on the impressions I read, Hugo is well designed product.

My Roxanne and JH16 hisses at med and high gain on my Hifi-M8. Silent on low gain. But it should not matter, I don't think I will need to use anything other than the low gain when I use my iems with M8.
post #529 of 894
Quote:
Originally Posted by headwhacker View Post

If Hugo can drive HD800 and don't hiss on iems without a variable gain, I believe it's internal amp is fixed to a high gain and has a very low noise floor and/or better RF shielding. I'm no expert as well and have not tried it yet, but based on the impressions I read, Hugo is well designed product.

My Roxanne and JH16 hisses at med and high gain on my Hifi-M8. Silent on low gain. But it should not matter, I don't think I will need to use anything other than the low gain when I use my iems with M8.

Which one sounds with your Roxanne? The M8 or the DX90?

post #530 of 894
Hugo doesn't hiss with UERM.
post #531 of 894
Quote:
Originally Posted by pekingduck View Post

Which one sounds with your Roxanne? The M8 or the DX90?

I like how Roxanne sound on DX90 than on M8. That is the bass at 9 o'clock. However, my JH16 sounded better on M8. JH16 tend to sound bloated on DX90.
post #532 of 894

For anyone interested my Roxanne review is on Positive feedback here The AK240 and JH Audio Roxanne's Rock my World

post #533 of 894
Quote:
Originally Posted by Frank I View Post

For anyone interested my Roxanne review is on Positive feedback here The AK240 and JH Audio Roxanne's Rock my World

Frank, that's is a really nice review! Kudos!
post #534 of 894

Togdor-Thanks really glad you enjoyed it .I had  a blast doing it.

post #535 of 894

Very quick update on my time with the Roxannes:

 

These are 'growers'. By that I mean I was disappointed on first listen (too warm, quiet treble). I persevered, and was underwhelmed for a while. In the last few days I've actually started to enjoy them.

 

I'd be interested to see a scientific study on the effects of the 'burn in' and 'brain burn' phenomena because I'm sure the sound has changed since the first listen. Like others, I have started to hear the treble in music - I'm certain I was straining to hear it before on some tracks and now it's just there.

 

I do wish I could turn the bass down a notch. Even at its lowest setting it can be quite overpowering. I would also prefer a little less mid-bass, replaced perhaps with some sub-bass oomph. But hey, that would change the overall sound, which I'm appreciating at the moment.

post #536 of 894

I noticed a bigger change after about 100 hrs. the  soundstage really got defined and sounded much better. I really like them

post #537 of 894

So they finally shipped! After 8 months. But I missed the delivery so gotta drop by the FedEx office to pick them up before I miss my trip to Toronto. Crazy day ahead of it.

 

Oh, and 299$ customs fees :blink:

 

I really hope it's worth it!

post #538 of 894
Quote:
Originally Posted by Wilderbeast View Post

Very quick update on my time with the Roxannes:

These are 'growers'. By that I mean I was disappointed on first listen (too warm, quiet treble). I persevered, and was underwhelmed for a while. In the last few days I've actually started to enjoy them.

I'd be interested to see a scientific study on the effects of the 'burn in' and 'brain burn' phenomena because I'm sure the sound has changed since the first listen. Like others, I have started to hear the treble in music - I'm certain I was straining to hear it before on some tracks and now it's just there.

What I did was let them play all day and listen to them for just a bit to prevent brain burn in


Quote:
Originally Posted by Frank I View Post

I noticed a bigger change after about 100 hrs. the  soundstage really got defined and sounded much better. I really like them


Ime, there is still some changes up to 200 hrs.

My jh13fp continue to change way past 200
post #539 of 894
I know I bitched a lot about JH customer service, but I have to hand it to them, refit service with Sue was quite exceptional. Hope the new ones will fit...will know within a week.
post #540 of 894

Fingers crossed for you ... :popcorn:

Quote:
Originally Posted by Mimouille View Post

I know I bitched a lot about JH customer service, but I have to hand it to them, refit service with Sue was quite exceptional. Hope the new ones will fit...will know within a week.
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