TOPPING NX1 Portable Headphone Amplifier Impressions Thread

[d marc0]

Hi guys...

Spending time with NX1 right now paired with Colorfly C3 + Noble 4 and the result is fantastic! Crisp, detailed, spacious, and quite neutral to my ears. Almost the same tonality as the JDS labs C5D and that's such an accomplishment from a little budget amp! My only gripe is the hiss with the Noble 4, it's quite bad. I can hear it over the music at low volume.

Anyone know the output impedance?

I'll try other IEMs and will report back with my final impression.

 

[H20Fidelity]

Hi guys...

Spending time with NX1 right now paired with Colorfly C3 + Noble 4 and the result is fantastic! Crisp, detailed, spacious, and quite neutral to my ears. Almost the same tonality as the JDS labs C5D and that's such an accomplishment from a little budget amp! My only gripe is the hiss with the Noble 4, it's quite bad. I can hear it over the music at low volume.

Anyone know the output impedance?

I'll try other IEMs and will report back with my final impression.

What a shame those Noble 4 are ruining the amp for you. 

 Damn things hissing. 

 

[skamp]

I've always been curious to see how those "audiophile" portable amps actually performed. I also wanted a new toy to play with, and it was so cheap, I pulled the trigger and ordered the NX1, to measure it. Here are my results:

Output impedance: 0.15Ω

RMAA (unloaded): http://outpost.fr/rmaa/Topping_NX1.htm
RMAA loaded with Denon AH-D2000: http://outpost.fr/rmaa/Topping_NX1-Denon_AH-D2000.htm
RMAA loaded with Shure SE425: http://outpost.fr/rmaa/Topping_NX1-Shure_SE425.htm
Source for all RMAA measurements: EMU 0204 USB line-out



Basically, the NX1 performs very well, with near zero output impedance, high signal to noise ratio, ruler flat frequency response, no distortion to speak of, and high output. I have to admit, I'm very pleasantly surprised. I can't even hear any hiss with my Shures.



The picture doesn't quite convey how tiny that thing is.

Anyway, no need to get all lyrical, the amp's performance speaks for itself.

:rolleyes:

 

[H20Fidelity]

Good on ya skamp, thanks for the information, hope you enjoy your NX1. =) I'll add your measurements and a link to your post in the OP.

 

[DJScope]

I've always been curious to see how those "audiophile" portable amps actually performed. I also wanted a new toy to play with, and it was so cheap, I pulled the trigger and ordered the NX1, to measure it. Here are my results:

Output impedance: 0.15Ω

RMAA (unloaded): http://outpost.fr/rmaa/Topping_NX1.htm
RMAA loaded with Denon AH-D2000: http://outpost.fr/rmaa/Topping_NX1-Denon_AH-D2000.htm
RMAA loaded with Shure SE425: http://outpost.fr/rmaa/Topping_NX1-Shure_SE425.htm
Source for all RMAA measurements: EMU 0204 USB line-out



Basically, the NX1 performs very well, with near zero output impedance, high signal to noise ratio, ruler flat frequency response, no distortion to speak of, and high output. I have to admit, I'm very pleasantly surprised. I can't even hear any hiss with my Shures.



The picture doesn't quite convey how tiny that thing is.

Anyway, no need to get all lyrical, the amp's performance speaks for itself.

 
Awesome mate! Thanks for the measurements!

 

[Wokei]

Fantastic news .....wooo..hoooo

 

[Baycode]

I've always been curious to see how those "audiophile" portable amps actually performed. I also wanted a new toy to play with, and it was so cheap, I pulled the trigger and ordered the NX1, to measure it. Here are my results:

Output impedance: 0.15Ω

RMAA (unloaded): http://outpost.fr/rmaa/Topping_NX1.htm
RMAA loaded with Denon AH-D2000: http://outpost.fr/rmaa/Topping_NX1-Denon_AH-D2000.htm
RMAA loaded with Shure SE425: http://outpost.fr/rmaa/Topping_NX1-Shure_SE425.htm
Source for all RMAA measurements: EMU 0204 USB line-out



Basically, the NX1 performs very well, with near zero output impedance, high signal to noise ratio, ruler flat frequency response, no distortion to speak of, and high output. I have to admit, I'm very pleasantly surprised. I can't even hear any hiss with my Shures.



The picture doesn't quite convey how tiny that thing is.

Anyway, no need to get all lyrical, the amp's performance speaks for itself.

 
This inspection is showing us that "what we are hearing" is scientifically proven!
 
Thanks!
 
BTW, I am approaching 100h without any sign of weakness of the battery. I am going to charge my NX1 now, in case of any problems on the Li-Ion battery.

 

[skamp]

This inspection is showing us that "what we are hearing" is scientifically proven!

The frequency response actually contradicts some of the impressions in this thread (but that's nothing new)…

 

[Baycode]

The frequency response actually contradicts some of the impressions in this thread (but that's nothing new)…

 
Yes you're right... But I believe most of them are before burn-in impressions or anything that the users (including me in the first post of mine) put the inputs without extended listening with the influence of some excitement.

 

[DJScope]

The frequency response actually contradicts some of the impressions in this thread (but that's nothing new)…

It does debunk what I heard to be around 2db boost in the treble and bass but that would mean the the Fiio E17 is mid forward because I had to match it with that in the EQ settings. xD

 

[d marc0]

Comparing the NX1 and C5D they seem pretty similar... Flat sounding to my ears. Very impressive this NX1!

 

[skamp]

It does debunk what I heard to be around 2db boost in the treble and bass but that would mean the the Fiio E17 is mid forward because I had to match it with that in the EQ settings. xD

Unlikely, if we are to believe FiiO's own measurements of their E17 (which I have no reason to doubt):



But I don't want to get into another debate about objectivism versus subjectivism.

The salient point for me is that the NX1 is pretty much the perfect "adapter" to "fix" a bad source (high output impedance and / or weak output). I'll be able to use it on the go with my laptop for instance, which suffers from ridiculously high output impedance (75Ω), which causes large FR variations, kills headphone damping and reduces maximum output significantly.

Kinda like a FiiO E5 or E6, except better, at pretty much the same price.

 

[DJScope]

Unlikely, if we are to believe FiiO's own measurements of their E17 (which I have no reason to doubt):



But I don't want to get into another debate about objectivism versus subjectivism.

The salient point for me is that the NX1 is pretty much the perfect "adapter" to "fix" a bad source (high output impedance and / or weak output). I'll be able to use it on the go with my laptop for instance, which suffers from ridiculously high output impedance (75Ω), which causes large FR variations, kills headphone damping and reduces maximum output significantly.

Kinda like a FiiO E5 or E6, except better, at pretty much the same price.

 
Hmmmm.... according to this= http://www.jensign.com/FiiOE17/RMAA/ComparisonFiiOInputs.htm Through the USB the sound is actually rounded... interesting.

 

[svyr]

I've always been curious to see how those "audiophile" portable amps actually performed. I also wanted a new toy to play with, and it was so cheap, I pulled the trigger and ordered the NX1, to measure it. Here are my results:

Output impedance: 0.15Ω

RMAA (unloaded): http://outpost.fr/rmaa/Topping_NX1.htm
RMAA loaded with Denon AH-D2000: http://outpost.fr/rmaa/Topping_NX1-Denon_AH-D2000.htm
RMAA loaded with Shure SE425: http://outpost.fr/rmaa/Topping_NX1-Shure_SE425.htm
Source for all RMAA measurements: EMU 0204 USB line-out



Basically, the NX1 performs very well, with near zero output impedance, high signal to noise ratio, ruler flat frequency response, no distortion to speak of, and high output. I have to admit, I'm very pleasantly surprised. I can't even hear any hiss with my Shures.



The picture doesn't quite convey how tiny that thing is.

Anyway, no need to get all lyrical, the amp's performance speaks for itself.

:rolleyes:

i rather like the clip+ and o2 measurements also being available there
http://outpost.fr/rmaa/

 

[DJScope]

@skamp
 
I'd kiss you if you got your hands on the Moto G to do an RMAA test on it! I'm really curious about it.