[toddy0191]

Well the NX2 arrived and I'm pleased to report that it works fine with all three of my Android devices. Power output is fine on my audio technica ath-m50x headphones and I honestly can say I wouldn't want it to go much louder. I was surprised to find the volume controls on all my devices still worked - I didn't expect that.

Sound quality is excellent and I'm definitely hearing things I never noticed on familiar tracks.

Are you using Neutron? If so go into settings, audio hardware and set Neutron to access the USB device directly. This improved the sound even more for me.

 

[Peddler]

I'm a big fan of Neutron but I do have some problems with it sometimes. Mostly because I use it to stream music from my desktop Mac and I have a lot of music which sometimes tends to overwhelm Neutron and make it sluggish. I'm halfway through a free 3 month subscription to Deezer and so am listening to that quite a lot.

No problems in driving my Audio Technica ATH M50x headphones - rarely go above 8/10.

Works really nicely with the Triple Fi's - loads of power in reserve.

Really pleased with the fact that it connects and works well with all my devices. Sound is pretty much consistant (as I would imagine is should be).

 

[fairx]

anybody can compare this with Fiio Q1, which is better? sound wise..

 

[estreeter]

anybody can compare this with Fiio Q1, which is better? sound wise..

 
 
The general attitude to many reviews here is that most are designed to push product, but read this and tell me this isnt the most lukewarm 'recommendation' of a product you've ever seen :
 
http://www.headfonia.com/review-fiio-q1-the-entry-dacamp/2/
 
Mike has a store in one of the craziest cities on earth - Jakarta - and I'd imagine he could sell a hell of a lot of Q1s if he wanted to pump it, but the fact that he seems to be recommending several earlier Fiio models over the Q1 makes me wonder what gives here. 
 
https://www.youtube.com/watch?v=1hJHEcRQ7TE
 
I dont speak Bahasa Indonesia, but I find it similar to headphone-related vids in German : its usually not hard to work out what they're going on about. If anything, the Indonesians are more likely to lapse into English than the technically-minded Germans. 
 
FWIW, I havent heard either DAC - I just find it odd that Mike has done a 180-degree about turn from raving about everything with the Fiio badge on it to posting a very lukewarm review of the Q1. As with anything, this is just one frame of reference, but my years on Head-Fi tell me that new gear is almost universally 'loved' until something better/cheaper/shinier comes down the pike. Good luck. 

 

[fredhubbard2]

sorry I am being a little lazy here, how does the NX2 compare with the NX1 which I already own and love?

 

[AstroBike]

Dear NX2 users,
 
Does the NX2 have enough power for Shure SRH840 cans? SRH840 has below specs;
 
* Sensitivity: 102 dB/mW
* lmpedance: 44 Ω
* Maximum Input Power: 1000 mW
 
Thanks in advance for your input.

 

[DjBobby]

  sorry I am being a little lazy here, how does the NX2 compare with the NX1 which I already own and love?

 


NX1 has low and high gain switch, longer battery life than NX2 and a solid volume pot with somewhat resistance, which you can feel into your pocket without looking.
NX2 is thinner making it more pleasant in your pocket, fixed gain setting which is closer to NX1's high gain, and a tiny volume pot which moves very easily, meaning you can incidentally change the volume in your pocket.
Although they use the same op-amp MAX9722, to my ears NX2 sounds somewhat fuller, richer and rounder than NX1. 
 
NX2 also has a dac, using PCM2704. It is recognized by Macbook simply as usb dac without a brand. No hi-rez files, it works only up to 16/48. Works fine with iPhone/iPads. Compared to the onboard sound of an iPhone 6s, don't expect to get any more detailed sound, better resolution or a wider soundstage. It adds some smoothness to the sound, more analogue, warmer bass and is less fatiguing. I can spend much longer time listening to the NX2 DAC than the iPhone alone. 
If you already own NX1, no urgent need to upgrade to NX2, as the NX1 is the ultimate budget king.
If you don't own any of them, I would say go for NX2. Having both, I use 90% of time NX2. 

 

[Peddler]

I've had the NX2 for a few weeks now and have used it on the Samsung Galaxy Note 2, Galaxy Tab S 10.5, Nexus 7 2013 and briefly on my iMac. Headphones used are Ultimate Ears Triple Fi 10's and Audio Technica ATH M50s.

Firstly the sound is quite consistant across all the devices (which is to be expected).
The NX2 isn't a very powerful amplifier - whilst definitely louder than the standard headphone sockets on the devices (with the exception of the Mac) it's not a powerhouse by any standards - I'm sure the device is really designed for IEM's. Certainly it can drive my Triple Fi's to very high levels (far higher than I would ever use).

There is a fairly low noise floor with the NX2 - more noticable with iem's than full sized phones.

I'm not sure if there is a burn-in effect or simply my brain adjusting to the sound but the sound has definitely smoothed out over time and the volume increased slightly. The sound quality is very good for the price and I would recommend it highly. Whilst I'm sure there are many AMP/DACcombinations which would better it, they're considerably more expensive.

 

[estreeter]

I'm convinced  that the volume increase at a given point on the dial is more than 'slight' 24 hours after taking the NX2 out of the box. I've had mine for less than a week and I only hook it up to my U3.6 when I really want to rock out. Anyone using it with suitable cans - particularly sensitive IEMs - should have no problems getting enough volume from this thing. What it lacks is headroom - there is no way I can go from the equivalent of '7 to 10' on the U3.6 without backing off, but its easy on the NX2. Overall, for the money I paid, this is proving to be an excellent upgrade over the headphone out on my laptop - no point trying to make comparisons with the ADL X1 or Sony PHA-2 when the purchase price is a fraction of what those cost me in 2014.

 

[cbfn]

Looks like a great AMP/DAC. How is the battery life when using the DAC vs. when just using the AMP? I am planning on hooking this up to iPod Touch third-gen, but it would be preferable to be able to use it with my Samsung S5 as well. However, if the battery life is noticeably longer on the NX1 I'll rather go for that one. Looking forward to hearing how either drives my MacaW GT100s. 

 

[toddy0191]

Looks like a great AMP/DAC. How is the battery life when using the DAC vs. when just using the AMP? I am planning on hooking this up to iPod Touch third-gen, but it would be preferable to be able to use it with my Samsung S5 as well. However, if the battery life is noticeably longer on the NX1 I'll rather go for that one. Looking forward to hearing how either drives my MacaW GT100s. 

The battery life's amazin on the DAC, it seems to last forever!

 

[cbfn]

So what are we talking here? About 100 hours? 

 

[EISENbricher]

  Looks like a great AMP/DAC. How is the battery life when using the DAC vs. when just using the AMP? I am planning on hooking this up to iPod Touch third-gen, but it would be preferable to be able to use it with my Samsung S5 as well. However, if the battery life is noticeably longer on the NX1 I'll rather go for that one. Looking forward to hearing how either drives my MacaW GT100s. 

idk about the DAC but my Topping NX1 makes me forget that it even consumes energy. I keep it plugged to my PC (through audio jack) and charge once per week (daily usage about 5-6 hours and 10-12 hrs on weekends) and I don't bother to turn it off. The LED keeps glowing and still I've never seen it getting depleted if I keep my once per week cycle running.

 

[toddy0191]

So what are we talking here? About 100 hours? 

I think the quoted 100 hours is very accurate. I use mine a couple of hours a day and haven't charged it for over a month. It charges very quickly too.

 

[cbfn]

Thanks guys, just ordered it!