HeAudio 1.3, 1.2B and the new JADE Stat Headphones

[krmathis]

Sorry to hear another customer getting a faulty pair.
The EH-1.2B looks nice, and have a price tag which makes it a real competitor against the well known Stax, etc.

Until they stop sending out test-phones, and finalizing their design, I will stay clear.

[naamanf]

It seems the right imbalance problem is related to me touching ground. Metal volume know attached to the chassis. If I adjust the volume with something between me and the knob it's fine. I am guessing the bias field is changing when I touch ground.

[mikeymad]

Yeah you can get burnt playing on the bleeding edge of a new product. I have seen and heard the other variations of the EH and they have all been good. But it has been a work in progress, as you can tell from the different styles. I was sad to hear that they tried something out and did not seem to test it out completely.

I would have been glad to wait a day for them to hook it up an amp for 24hours and check it out.

How many phones were in this batch (experiment 2.7.14-a)?

Cheers,

[naamanf]

Originally Posted by mikeymad

I would have been glad to wait a day for them to hook it up an amp for 24hours and check it out.

x2. I really wonder if mine even got plugged in. It made the crackling noise immediately when plugged in. Then it went away and just comes back at random times. I can make it do it all the time by pressing the phone against my head a little.

I wonder why they did the mod to begin with. It seems like everyone really liked the way it was and didn't complain about long charge times.

[webbie64]

Originally Posted by krmathis

Sorry to hear another customer getting a faulty pair.
The EH-1.2B looks nice, and have a price tag which makes it a real competitor against the well known Stax, etc.

Until they stop sending out test-phones, and finalizing their design, I will stay clear.

Have to agree. With that level of investment the product needs to be consistent in quality, especially with a pre-release approach to build a momentum of sales.

It really does appear to be more a 'beta test' approach (as others have implied) with the subsequent risk of failures, poor product-change choices potentially damaging the very positive feedback built up with the initially released items.

Too much risk at the moment for me to commit that level of dollars.

Originally Posted by naamanf

I wonder why they did the mode to begin with. It seems like everyone really liked the way it was and didn't complain about long charge times.

X2. Experimentation when you've already got a positively "It's worth the dollars" reviewed item needs to be behind closed doors, not public. If it aint broke, and you correctly imply no public complaints here, then don't muck around with it (although constant improvement efforts behind-the-scenes - until proven to be worth it - are more than welcome I'm sure)

[vcoheda]

Originally Posted by naamanf

I wonder why they did the mod to begin with. It seems like everyone really liked the way it was and didn't complain about long charge times.

Originally Posted by mikeymad

I was sad to hear that they tried something out and did not seem to test it out completely. I would have been glad to wait a day for them to hook it up an amp for 24hours and check it out.

i'm in total agreement.

the 1.2 and 1.3 both sounded very good, with the 1.2 being a little smoother. they should have stuck with one or the other. why they all of a sudden started to make additional changes is beyond me and obviously they made these changes w/o testing to see what effect it would have on the design/sound.

i hope they are reading these posts and realize that people will tire very quickly with unfinished products and start to lose confidence in the company all together.

[vcoheda]

Originally Posted by tom hankins

So the review samples arent the same phones that are in production?

they were supposed to be.

[spritzer]

Originally Posted by naamanf

It seems the right imbalance problem is related to me touching ground. Metal volume know attached to the chassis. If I adjust the volume with something between me and the knob it's fine. I am guessing the bias field is changing when I touch ground.

That simply means that the bias is connected to you in some way!! Not good news and shows a total breakdown in all insulation that is meant to protect the listener.

If the phones aren't even tested before shipping out how are they matching the drivers? The drivers need to be run in a matched in pairs before they are even put in the phones. This is done to every 30$ headphone out there.

[Yikes]

Standing with fingers in ears humming loudly ignoring all negative comments while I wait for my set to arrive.

Originally Posted by spritzer

That simply means that the bias is connected to you in some way!! Not good news and shows a total breakdown in all insulation that is meant to protect the listener. .

Sounds to me like a problem with the grounding scheme on the amp. I'd see about trying a different amp and see if the symptom is the same.

Originally Posted by spritzer

If the phones aren't even tested before shipping out how are they matching the drivers? The drivers need to be run in a matched in pairs before they are even put in the phones. This is done to every 30$ headphone out there.

I agree that the drivers in any HQ headphone should be level matched. I would bet however that most are not, certainly not cheap $30 Koss or Sony's. I'd love to see evidence that they are.

Am I going to end up with Stax Omega's?

[spritzer]

Originally Posted by Yikes

Sounds to me like a problem with the grounding scheme on the amp. I'd see about trying a different amp and see if the symptom is the same.

This isn't his first amp and since the bias is an open circuit he could be closing it by touching the chassis ground. That's the phones fault of the same affect would be present with the SR-007 or any of the other phones.

Originally Posted by Yikes

I agree that the drivers in any HQ headphone should be level matched. I would bet however that most are not, certainly not cheap $30 Koss or Sony's. I'd love to see evidence that they are.

Am I going to end up with Stax Omega's?

All makers test their drivers but they don't match them all that closely. Matching becomes more of an issue at higher levels and it is even more important with electrostatic drivers as a small difference in the stretching will be very audible. Just look at the test results of the Siltech speaker in Hi-fi News. The tweeters weren't even close...