Final JH3A revision Impressions - Page 3

It's unfortunate that all the difficulties in getting the Jh3a to production dampened the enthusiasm for this unit. I would guess that were it not for that this thread would be flooded with impressions by early adopters. I would like to say that I'm still very eager to hear more impressions. All the jh3a threads became dominated by the issues concerning the production of the unit. Please let us, at last, hear what the unit sounds like from varied perspectives. I'm sure I not the only one who has been hovering over this thread waiting to hear more about the sound and considering a purchase. 

Quote:

Originally Posted by Waazup 

 

Have you compared it to other configurations such as a standard JH16 with other top amps to see how they compare?

This!

Ever since I switched from my HM-801 to my Cowon J3 I have been very careful on what recommendations I value here on head-fi...Many people seem to think high price = high sound quality.

That being said I'm very happy with my JH16 Pro and have been very intrigued by the JH3A in its original form as it seemed to be a revolutionary step. Instead the new version just seems to be an evolutionary step on what is already readily available technology. 

Hence my question: How much does it really sound better then just the JH16 alone?

Quote:

Originally Posted by tranhieu 

Of the actual unit, and its innard if possible. :P

 I posted pictures of the inside on the other thread but here are a couple more.

It seems like there is an opamp of some sort like the iBasso amps held in place with a cable tie, i wonder if i can change it over.

I haven't really been following the whole JH3a thing, but I was wondering; owning a JH16, is it possible to just buy the JH3a, or do they only sell them together? That's the only option I see on the website. 

Quote:

Originally Posted by Waazup 

 I posted pictures of the inside on the other thread but here are a couple more.

It seems like there is an opamp of some sort like the iBasso amps held in place with a cable tie, i wonder if i can change it over.

 

 

Thanks, these pictures confirm my thought that he/someone else soldered all those parts by hand, that would explain the lack of quality check and the unstability some people here reported.

I wouldn't be surprised to know there're some opams here, the jh3a also works as an amp.

Quote:

Originally Posted by tranhieu 

Thanks, these pictures confirm my thought that he/someone else soldered all those parts by hand, that would explain the lack of quality check and the unstability some people here reported.

I wouldn't be surprised to know there're some opams here, the jh3a also works as an amp.

I really doubt anyone would be able to solder all the parts by hand, maybe most were but just look all all those pins on the Cirrus Logic chip, would be very difficult to do by hand.

And i'm sure we all know the 3A is an amp and the reason for the opamps but i mentioned this because in this case it looks like it can be changed by the user as it is not soldered.
 

Quote:

Originally Posted by Waazup 

 

I really doubt anyone would be able to solder all the parts by hand, maybe most were but just look all all those pins on the Cirrus Logic chip, would be very difficult to do by hand.

And i'm sure we all know the 3A is an amp and the reason for the opamps but i mentioned this because in this case it looks like it can be changed by the user as it is not soldered.
 

 

well it's not that difficult if you have done smd soldering before, but looking at those pins I wonder if the person who soldered those is experienced. Especially r103 in the 3rd picture from the left is obviously crooked.

Sound quality aside, customers have the right to ask for well soldered pcbs, not some sloppy work like this.

About opam rolling, I'd rather not venture. Each opam has its own spec and you don't even have the scheme of the jh3a to begin with.

Btw didn't you void the warranty open up your jh3a like that?

Quote:

Originally Posted by tranhieu 

well it's not that difficult if you have done smd soldering before, but looking at those pins I wonder if the person who soldered those is experienced. Especially r103 in the 3rd picture from the left is obviously crooked.

Sound quality aside, customers have the right to ask for well soldered pcbs, not some sloppy work like this.

 

About opam rolling, I'd rather not venture. Each opam has its own spec and you don't even have the scheme of the jh3a to begin with.

Btw didn't you void the warranty open up your jh3a like that?

You asked for internal pictures so if i voided the warantee i will blame you for it
 

I too would also like to know how much better the JH-3A sounds than a JH16 without the unit.

Quote:

Originally Posted by ABRockWell 

I too would also like to know how much better the JH-3A sounds than a JH16 without the unit.

Then you would have to ask what said JH16 is being driven by which could include an infinite spectrum of possibilities for comparison.  You can't just ask what a JH16 sounds like by itself.

Do you guys think I should start saving for the JH3A or stick to my Ibasso D12?

Thank you.

Quote:

Originally Posted by Anaxilus 

Then you would have to ask what said JH16 is being driven by which could include an infinite spectrum of possibilities for comparison.  You can't just ask what a JH16 sounds like by itself.

 

My JH16s are currently being driven by a DACport, SOLO+Pico Slim or SOLO+Rx MKII, using all Apple Lossless files. Thanks in advance.

Wow, the return of the FOTM.  So is it October 2010 all over again?  

Guys, get over it. This product is the Edsel of personal audio, deader than dead.