AUDIOPHONICS PA-S125NC RCA Stereo Class D Power Amplifier NCore 2x75W 8 Ohm

AUDIOPHONICS PA-S125NC Stereo Class D Power Amplifier NCore 2x75W 8 Ohm
The Audiophonics PAS-125NC incorporates a Hypex Ncore NC122MP power amplifier module. This is a solid base to build a powerful stereo HiFi system, capable of delivering 2x75W under 8Ω.

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Audiophonics PA-S125NC RCA

Power amplifier NCORE 2x75W 8Ω Black

Audiophonics PAS-125NC Amplificateur de puissance

An amplifier with solid performance

The Audiophonics PA-S125NC incorporates a Hypex Ncore NC122MP power amplifier module.

This is a solid base to build a powerful stereo HiFi system, capable of delivering 2x75W under 8Ω.
On a single double-sided PCB it is composed of a low power supply for standby, a high-performance switching power supply but above all an extremely efficient Class D amplifier circuit.

The amplifier used on this NC122MP module offers a high efficiency of 92% and allows it to be used for very different uses, whether for studio use or to be integrated into a high fidelity audio system.

The distinctive characteristics of this amplifier are its linear frequency response whatever the load impedance and consequently its accurate restitution, its very low distortion but also its very low EMI radiation rate
The control of the amplifier is based on a self-oscillating loop with phase shift, taking into account the feedback only at the output of the loudspeaker, always with sound transparency in mind.

The main SMPS power supply to the amplifier is a regulated, high power, high efficiency half bridge converter with synchronous rectification on the main output rails. An ideal power supply to provide this Class D amplifier with the power it needs.
In order to be compatible with supply voltages of 100-120V and 200-240V, it is equipped with an automatic input voltage doubler.

POINTS CLÉS :

  • High efficiency
  • Load-independent flat frequency response
  • Low output impedance
  • Frequency-independant ultra low distorsion
  • Very low noise
Hypex NC122MP

NCore Technology

NCore amplifiers are the first Class D amplifiers to approach the performance of operational amplifiers, but also to surpass them in terms of sound reproduction quality. 
Thus, they are able to deliver a clear, rich and musical sound while remaining compact.

This NCore technology combines the stability of Hypex UcD series amplifiers with lower distortion and output impedance.

Amplificateur Ncore

100% Aluminium Housing

We integrate this Hypex NCore NC122MP amplifier in a 100% black brushed aluminum housing.

This case offers an elegant finish, the thick walls give it a great resistance, allowing it to protect components properly.
The natural conduction of aluminium, together with a studied air flow, allows the heat produced by the module to be dissipated.
In addition, the case is screen printed on the front with the NCore logo and on the back with the nomenclature of each input/output.

Its very compact format with a small width reduces space to a minimum, thus offering high performance in a small space.

This amplifier is DC pass-through , there are no decoupling capacitors at the input.
Be sure that your source is DC free before use.
The DC protection triggers at 12V DC, which is a quite high value.

In addition to the usual connection system, there is a trigger input on the rear panel. 
This 3.5mm jack input allows the module to be switched on with a DC voltage signal from 5 to 12V to synchronize it with a preamp having this type of output.
It is also possible to chain 2 amplifiers, and to switch on both simultaneously by controlling only one, the input being transformed into an output if the power button of one of the amplifiers is pressed.

Also present on the front is a diode relaying the status of the module, lighting up if a DC voltage is detected at the output.

Test Qobuz hypex PA s125 NC amp stereo Audiophonics

Discover the test by Qobuz

The PA-S125NC was the subject of a test from Qobuzz.

Click here to read it.


Technical characteristics

Specifications
Amplifier typeClass D
Power2x75W 8Ω @ 1kHz THD=1%
2x125W 4Ω @1Khz THD=1%

2x 37W 8Ω @ 10Hz-20kHz THD=0.0015%
2x 62W 4Ω @ 10Hz-20kHz THD=0.0015%
THD+N0.0015%
SNR118dB
Output noise30µV
Frequency response10Hz - 50kHz
Efficiency92%
Gain25.5dB
Input sensibility125W 4ohm @ 1.17V RMS
Channels2 (Stereo)
TechnologyNCore
InputStereo RCA
Input / OutputTrigger 5-12V DC
OutputSpeaker connectors
General
Housing material100% brushed Aluminium
Power supplyMain : IEC (included cable)
Trigger : Jack 3.5mm 12V (not included)
ColorBlack
Dimensions28.7 x 10 x 6cm
Weight1310g
 
Data sheet
InputRCA
OutputSpeaker terminal
ColorBlack
StructureAluminium
Channel2 channels (Stereo)
Accepts Banana PlugsYes
ClassClass D / T
Total Power (W)100-150
Power (max)75W
 
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Average votes
4.9 / 5
7 reviews
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Note :
 5/5
Date :
ASSOCIATION EXCEPTIONNELLE.
Mon dernier achat ( ampli audiophonics N CORE ) s'intègre au niveau des éléments suivants : récepteur Bluetooth CRS 8675, préampli audiophonics PGA 2310, et dac X3 Fx Audio. La restitution sonore se fait par le biais d'une paire de Q Acoustics 3020i câblée en Viard hd 12 et modulation canare. Les fichiers audios sont tous en flac hd. Que dire de la restitution: " exceptionnelle". Cet ensemble n'a rien à envier à des systèmes que l'on qualifie haut de gamme. Tout le spectre sonore est restitué avec une qualité surprenante. La tessiture des voix est riche en émotion. Les aigus files très hauts avec matière et subtilité. Tous les types de musique sont restitués avec une véracité surprenante. Le secteur grave n'est pas en reste. Il est surprenant non seulement par sa spontanéité, mais également par son exploration des infras graves. Bluffé par cette déferlante sonore, mon ami aux système haut de gamme, reconnaissait avec fairplay la qualité exceptionnelle de ces nouvelles électroniques.
 (0)
 (0)
This review has been posted for AUDIOPHONICS PA-S125NC RCA Stereo Class D Power Amplifier NCore 2x75W 8 Ohm
Note :
 4/5
Date :
Good for the price, but lacking power
Good amplifier for the price.
But for larger 3 way speaker the power is ok, but not the class d tight bass.
If you can go for the ncore250 (or higher), that has more power.
 (0)
 (0)
This review has been posted for AUDIOPHONICS PA-S125NC RCA Stereo Class D Power Amplifier NCore 2x75W 8 Ohm
Note :
 5/5
Date :
petit mais costaud
Excellent ampli de puissance;
Il est très proche d"un Nuprime ida 8 ; avec un supplément de matière dans la restitution et un bas medium/grave moins boursouflé .
Très bonne dynamique et pas d'agressivité .
Une main de fer dans un gant de velours.
Il chauffe pas mal , mais peut-être est-de du aux températures caniculaires qu'il fait actuellement.
La finition est très bonne et inspire confiance.
 (2)
 (0)
This review has been posted for AUDIOPHONICS PA-S125NC RCA Stereo Class D Power Amplifier NCore 2x75W 8 Ohm
Note :
 5/5
Date :
Its better than my custom LM3875
I bought this amp because of the very good reviews for the ncore technology. I have a very transparent system , with a metrum acoustics dac and monitor custom speakers with a high quality crossover. My system is as transparent as possible and colorations are easily perceivable. There is a substantial difference to my custom built lm3875 amplifier. The sound is clearer , more dynamic, I would say more contrasty. The biggest difference is in the bass. Its overall better. However the music from youtube videos can be better with my old amp....... Sometimes colorations and artifacts can make a poor audio stream sound better. Needs good recordings to show its true potential. It is easily the best amp i ever had! Everybody should buy one of these. It is a must! The price quality ratio is the best on the internet. It matches very well my metrum acoustics dac.
 (2)
 (0)
This review has been posted for AUDIOPHONICS PA-S125NC RCA Stereo Class D Power Amplifier NCore 2x75W 8 Ohm
Note :
 5/5
Date :
End of the games
To me the amplification issue is solved whit this device.
Thanks to Audiophonics that make accessible this great technology at fair price.
 (0)
 (0)
This review has been posted for AUDIOPHONICS PA-S125NC RCA Stereo Class D Power Amplifier NCore 2x75W 8 Ohm
 
AUDIOPHONICS PA-S125NC RCA Stereo Class D Power Amplifier NCore 2x75W 8 Ohm
The Audiophonics PAS-125NC incorporates a Hypex Ncore NC122MP power amplifier module. This is a solid base to build a powerful stereo HiFi system,...

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