[H20Fidelity]

   
Any noticeable noise on high gain settings?

I switched over to Rhapsodio RDB Mini (low impedance hybrid IEM).

On high gain there's a tiny subtle hiss in the background when no music is playing regardless where the volume is (fully down etc)

I'm talking pretty subtle though, Its well behaved. Low gain is silent. 

Back to the Beyers.......

 

 

[ClieOS]

   
Yeah, definitely looks like the specs have been made up! (as on most sellers pages). If it is a maxim chip, would it be something like this solde at mouser?
 
http://uk.mouser.com/ProductDetail/Maxim-Integrated/MAX13331GEE-V+/?qs=sGAEpiMZZMuyaNrx2BHM4iCP5Bi2hfBPrtsMbgWwJIc%3d
...

 
Could be, but Maxim makes quite a few of these chips and it is hard to say. Well, at least Topping is finally bother to update their website.
 
Gain and power are two things. Getting loud doesn't always equal to a lot of power.

 

[H20Fidelity]

   
Could be, but Maxim makes quite a few of these chips and it is hard to say. Well, at least Topping is finally bother to update their website.
 
Gain and power are two things. Getting loud doesn't always equal to a lot of power.

I think Its driving the 250ohm Beyers pretty well to be honest. Its smooth on the volume pot until about 12:00 then there's a lack of headroom until you reach about 2:00 (you can feel that), after 2:00 it throws the power on again.  Put it this way I can't max out the volume or it's honestly to loud and there's no stage compression. 

We'll get some more members opinions, see what they can throw at it in the way of high loads.

Maybe ClieOS will eventually need to buy one and check it out........... 

 

 

[ClieOS]

Always a possibility...

 

[Baycode]

I think Its driving the 250ohm Beyers pretty well to be honest. Its smooth on the volume pot until about 12:00 then there's a lack of headroom until you reach about 2:00 (you can feel that), after 2:00 it throws the power on again.  Put it this way I can't max out the volume or it's honestly to loud and there's no stage compression. 


We'll get some more members opinions, see what they can throw at it in the way of high loads.


Maybe ClieOS will eventually need to buy one and check it out...........   

I think they will start to sweat under AKG K340 electrostat-dynamics We'll see...

My comparisions will be with E11, Double Buf634 opa powered Mini Head Signature and DV TH336se (I know last one wouldn't be fair).

Hope and wish they can drive Havi B3 Pro1 properly.

 

[H20Fidelity]

I think they will start to sweat under AKG K340 electrostat-dynamics

We'll see...

My comparisons will be with E11, Double Buf634 opa powered Mini Head Signature and DV TH336se (I know last one wouldn't be fair).

Hope and wish they can drive Havi B3 Pro1 properly.

Your comment and all this talk about driving NX1 with high impedance cans remind me of a utube channel I discovered called Photonicinductions, where an individual pushes electrical equipment to it's absolute limits until it "pops" so he calls it.

Kind of off-topic but you can check it out in the spoiler.

 

Spoiler: Warning: Spoiler!

Anyway as I always say, I'm but one member, the true evaluation of NX1 lies in the members hands.

 

[DJScope]

OK guys. Just got a reply from Topping. They confirm that the opamp is NOT the OPA1611 as stated. And they are contacting sellers to remove the false information.
They won't tell me which opamp is being used because they don't want their competitors copying them.

Sent from Moto G XT1033 w/ Faux kernel.

--EDIT--

I've got news that there will be a NX2 and an NX3 on the way


See the whole conversation with Topping themselves:

Spoiler: Warning: Spoiler!

Thank you!

Unfortunately we did not has any social media accounts, I think we do quite little on publicity.
╮(╯▽╰)╭

--


Thanks and best regards
Hailin Huang
------------------------------------------------------------------------------------------
GUANGZHOU TOPPING ELECTRONICS AND TECHNOLOGY CO, LTD.
Tel:+86-020-37219489
Mob:+86-15800009791
Fax:+86-020-37219489
http://www.tpdz.net/
-----------------------------------------------------------------------------------------



At 2014-06-16 05:36:41, "Igor Rebenko" wrote:

Very exciting! I will keep my eyes and ears open for the announcement!
Does Topping have a Facebook page or any other social media accounts to keep up to date with the new?
Regards,
Igor Rebenko
On Jun 16, 2014 7:32 PM, =?UTF-8?B?6buE?= wrote:


Thank you for understanding us!
We are consider adding this function to NX3 because we had already finish all design of NX2, but we are not allowed to talk about the product which had not announced.


--


Thanks and best regards
Hailin Huang
------------------------------------------------------------------------------------------
GUANGZHOU TOPPING ELECTRONICS AND TECHNOLOGY CO, LTD.
Tel:+86-020-37219489
Mob:+86-15800009791
Fax:+86-020-37219489
http://www.tpdz.net/
-----------------------------------------------------------------------------------------



At 2014-06-16 05:26:33, "Igor Rebenko" wrote:

Haha! Fair enough. Thank you for clearing everything up. It was lots of help. The NX1 is a great little amplifier and for the price is completely unbeatable.
Maybe the next version could have a bass boost function?
Keep up the great work.
Regards,
Igor Rebenko
On Jun 16, 2014 7:22 PM, =?UTF-8?B?6buE?= wrote:


Hello
Sorry I could not tell you what chip NX1 is using, because too many competitors are copying our products, in order to prevent them copy NX1, we erase the model of the chip and keep this as a business secrets
--
Thanks and best regards


Hailin Huang
------------------------------------------------------------------------------------------
GUANGZHOU TOPPING ELECTRONICS AND TECHNOLOGY CO, LTD.
Tel:+86-020-37219489
Mob:+86-15800009791
Fax:+86-020-37219489
http://www.tpdz.net/
-----------------------------------------------------------------------------------------



At 2014-06-16 05:16:24, "Igor Rebenko" wrote:

Thank you for the information. Do you mind to tell me which opamp it is using?
Regards,
Igor Rebenko
On Jun 16, 2014 7:04 PM, =?UTF-8?B?6buE?= wrote:


Hello
The information of amazon and ebay is incorrect, we did not use OPA1611 in NX1. We had found this problem 1 week ago and inform dealers to correct it. Thank you for telling us!

--


Thanks and best regards
Hailin Huang
------------------------------------------------------------------------------------------
GUANGZHOU TOPPING ELECTRONICS AND TECHNOLOGY CO, LTD.
Tel:+86-020-37219489
Mob:+86-15800009791
Fax:+86-020-37219489
http://www.tpdz.net/
-----------------------------------------------------------------------------------------



At 2014-06-15 07:27:21, "Igor Rebenko" wrote:

Hi,


Thanks for your confirmation!
I’m quite curious about the opamp IC that is used in the NX1. In the ads on Amazon and eBay it is stated in the pictures that the chip used is the TI OPA1611, but this chip is a single channel opamp. Also in the picture of the PCB of the NX1 it looks like the chip is a SOIC16 where the OPA1611 or even the dual channel OPA1612 are both SOIC8 chips. Could you clarify please?


Regards,


Igor Rebenko


From: amp2006@163.com
Sent: ‎Friday‎, ‎13‎ ‎June‎ ‎2014 ‎11‎:‎20‎ ‎AM
To: Igor Rebenko



Hi
NX1 is our new product and haven't add to our web yet.





--


Thanks and best regards
Hailin Huang
------------------------------------------------------------------------------------------
GUANGZHOU TOPPING ELECTRONICS AND TECHNOLOGY CO, LTD.
Tel:+86-020-37219489
Mob:+86-15800009791
Fax:+86-020-37219489
http://www.tpdz.net/
-----------------------------------------------------------------------------------------



At 2014-06-13 05:50:20, "Igor Rebenko" wrote:

Hi!


The Topping NX1 has been getting a bit of hype on Head-Fi for the past month or so. I was curious though, is this a genuine Topping product? Why I ask, is because it is not listed on you website.


Link to the NX1:
http://www.dx.com/p/topping-nx1-headphone-amplifier-for-mp3-mp4-cellphone-tablet-pc-black-294594#.U5ogYcqSwpo


Regards,


Igor Rebenko

 

[docentore]

I went to dx.com to get it, temporalily sold out

 

[Baycode]

  I went to dx.com to get it, temporalily sold out

 
Well if I were you I would send them an email and ask for restock...  Its interesting I found only one seller on Aliexpress (44USD) and 2 sellers on ebay starting at 129 USD  :/
 
Edit: found one here (but 39.99USD): http://www.ebay.com/itm/Topping-NX1-Earphone-Headphone-Portable-Amplifier-3-5mm-USB-Rechargeable-Battery-/181307924700

 

[FInixNOver]

  I went to dx.com to get it, temporalily sold out

I ordered mine from DX on June 9th, I've been checking the order every day, but I didn't get a purchase update until today, and guess what?... 
 
A new entry, dated 09-06-2014 08:55:51, saying "Order Processing - One or more of your items are temporarily out of stock."
This really pisses me off!!
I had stopped buying from DX, ever since they canceled a purchase, because all items in my list were out of stock (which there wasn't any mention of at the time of the purchase)... I opened an exception, to get this little gem, but I'm regretting it already! I realize they may have a bunch load of sales, but ultimately, they're doing a lousy job at stock management!!

 

[stefu]

I ordered from DX on June 12. It is saying "Order is being processed.". So I suppose it will say out of stock soon.... I'd really like to get it before July 18 as I'm traveling then.

 

[ebrian]

Oh no!  Mine says Order is being processed too!  Ordered June 12.  Arggh..
 
Edit: What time did your order process?  Mine was at 6:21pm.

 

[Aegentirony]

Got mine today... Ok I'm not technical at all I just know what sounds good to me ...
Ath M50's Sony nwz-E or Nokia 521
The Sony on low gain is noticeably louder with not much sound quality change i can tell..
High gain... Ok now I can hurt my ears .. Exactly what I wanted .. Before I couldn't get it loud enough for my tastes. No, I dont hurt my ears and I can't have the topping at full volume with the player at full volume. For aha I got it for , its great and I'm satisfied we will see how long the battery lasts and longevity in some time .
Peace

 

[DMax99]

Lol.. I also like the Hi gain better. Gives it a more oomph...!

But don't hurt your ear too much. Don't want to go deaf and shorten your audiophile life.. Lol

 

[DJScope]

Got mine today... Ok I'm not technical at all I just know what sounds good to me ...
Ath M50's Sony nwz-E or Nokia 521
The Sony on low gain is noticeably louder with not much sound quality change i can tell..
High gain... Ok now I can hurt my ears .. Exactly what I wanted .. Before I couldn't get it loud enough for my tastes. No, I dont hurt my ears and I can't have the topping at full volume with the player at full volume. For aha I got it for , its great and I'm satisfied we will see how long the battery lasts and longevity in some time .
Peace

 
Be careful with your hearing mate! You don't want to make yourself deaf...