JH-3A

[vincent_ctn]

Has been causing a stir in the IEM world. Hopefully Jaben will bring it in soon but no order page on JHAudio website.

More info: http://tinyurl.com/26ccn85

[super-fied]

There is an order page, but i won't be even considering one until I've heard it...Got other things to consider

[mathew_soon]

Frankly, this makes more sense then balance earphones

[kchew]

It's a huge leap of faith though; you can't use that amp with another IEM and your JH with another amp. But the design is really interesting, an ADC, DSP and DAC built in? With more inputs and outputs you can turn it into the swiss-army knife of portable audio equipment.

[super-fied]

I concur with kchew,huge leap of faith on this one... Listening to an actual demo unit will only serve to reinforce the fact that this may be a revolution and not just a refinement in the iem world,if that is indeed the case.Can't wait for the demo to come in!

for now,i sure love my customs in true balanced mode lol,amazing improvement in every aspect sonically. Best of all,i have the abilty to unplug them and use them for portable use!

[mathew_soon]

I am still digging my brains at how "true balanced mode" from an amp to the IEM (Spks) can be achieved

[super-fied]

um mathew,i'm no rocket scientist..but my instructions and understanding tell me to just use my balanced output connections from my DAC  to balanced inputs on my amp, which i then connect xlr cables from my iems(or cans) to the amp.

http://tinyurl.com/ykqfe7k



is that wrong or am I just going through a placebo effect from hearing the benefits? i certainly seem to enjoy it a lot!

[mathew_soon]

balance inputs does have its benefit, but also coloration and most don't implement properly.

Every wonder why high end audiophile equipment don't have speaker outputs that are balanced? (or at least those I see Krell amps, Ayre..etc and my KT88 monobloc tubes amps bi-amping to my speakers)

Looks like the "balance" context here is the floating ground.
That is resolved by a nice coupling transformer which removed the common ground. Maybe a good coupling trans is not that implementable in a portable gig.

As with all speakers, they operated in +ve and -ve or push pull. With/without the so call balance, these +ve and -ve are anyway.. 180 phase different.. Otherwise, the magnetic coil will not know where to move. Of course, most put the -ve as common.

Looks to me like implementation of a coupling trans to remove common ground effect is interesting translated into cable rewiring.

[super-fied]

I'm definitely no engineer so I wouldn't know if my home equipment (definitely not high end) has the principle implemented correctly or not.

But I can hear an increased sense of dynamics and soundstaging when directly compared to the usual single ended source of inputs through this implementation-i. the removal of the common ground between the left and right channels...again if there is any colouration introduced, I am enjoying it a lot.  

besides they all came with balanced in/outputs anyway so why not use it?

Let's head back to topic with the discussion on the JH-3A. My instincts tell me it will probably be another 1/2 months before it comes to Jaben... I really want to hear it and see if it's indeed the 50% increase in improvement as what Jerry said with the cross overs placed in the amp itself... 

 

 

[mathew_soon]

The main selling point for JH-3A I think is the bi-amping.

One amp for highs, one for mids and one for lows. This definitely give the whole meaning to "fullness".
I'm driving both my car hifi (each speakers have its amp), and my home hifi using amps for each speaks as well, similar to JH-3A design.

Compared to 1 amp driving everything using passive crossovers, its night and day. You have enough juice and headroom.
The clarity and separations in both channel and your music definition is definitely something to look out for.

This is my guess but only for bi-amps running in home hifi.

[super-fied]

The main selling point for JH-3A I think is the bi-amping.

One amp for highs, one for mids and one for lows. This definitely give the whole meaning to "fullness".
I'm driving both my car hifi (each speakers have its amp), and my home hifi using amps for each speaks as well, similar to JH-3A design.

Compared to 1 amp driving everything using passive crossovers, its night and day. You have enough juice and headroom.
The clarity and separations in both channel and your music definition is definitely something to look out for.

This is my guess but only for bi-amps running in home hifi.

Thanks for the detailed explaination and real life examples!You've certainly piqued my interest in hearing it even more.I'm hoping the demos will hit us real soon!

[ztsen]

The main selling point for JH-3A I think is the bi-amping.

One amp for highs, one for mids and one for lows. This definitely give the whole meaning to "fullness".
I'm driving both my car hifi (each speakers have its amp), and my home hifi using amps for each speaks as well, similar to JH-3A design.

Compared to 1 amp driving everything using passive crossovers, its night and day. You have enough juice and headroom.
The clarity and separations in both channel and your music definition is definitely something to look out for.

This is my guess but only for bi-amps running in home hifi.

I don't think this is called bi-amping. Normally Bi-amping is used for LF and HF in a speaker.

[mathew_soon]

The main selling point for JH-3A I think is the bi-amping.

One amp for highs, one for mids and one for lows. This definitely give the whole meaning to "fullness".
I'm driving both my car hifi (each speakers have its amp), and my home hifi using amps for each speaks as well, similar to JH-3A design.

Compared to 1 amp driving everything using passive crossovers, its night and day. You have enough juice and headroom.
The clarity and separations in both channel and your music definition is definitely something to look out for.

This is my guess but only for bi-amps running in home hifi.

I don't think this is called bi-amping. Normally Bi-amping is used for LF and HF in a speaker.

You are right, should be Tri-amping then...

[Chan]

so anybody got it?
Care to share?
Thanks