AUDIOPHONICS MPA-S250NC RCA Class D Stereo Amplifier Ncore 2x250W 4 Ohm

AUDIOPHONICS MPA-S252NC XLR Class D Stereo Amplifier Ncore 2x150W 8 Ohm
The Audiophonics MPA-S250NC RCA is a stereo amplifier based on an amplification module Hypex Ncore NC252MP. This solution is ideal for anyone who wants to have a large power reserve (2x250W) without sacrificing sound reproduction quality.

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Audiophonics MPA-S250NC RCA

Class D Stereo Amplifier Ncore 2x250W 4 Ohm

Audiophonics MPA-S252NC RCA Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

The Audiophonics MPA-S250NC RCA is a stereo amplifier based on an amplification module Hypex Ncore NC252MP. This solution is ideal for anyone who wants to have a large power reserve (2x150W) without sacrificing sound reproduction quality. This amplifier block will be suitable for example to accompany demanding speakers, to sound large listening rooms or for studio applications requiring a large headroom without compromising the accuracy and richness of the audio message.

All components are integrated in a simple and robust 100% Aluminium housing with openings to facilitate heat dissipation. Its design also allows it to limit the impact of interference on the signal.

Hypex Ncore NC252MP Amplification Board

The amplification circuit uses a module Hypex Ncore NC252MP. It is a versatile, high-performance Class D amplifier. It offers a very comfortable power of 2x150W at 8Ω while taking advantage of the high efficiency of Class D amplifiers.

Its main characteristics are its flat frequency response regardless of load impedance, its almost frequency-independent level of distortion and its ability to reject EMI interference. Its operation is based on a self-oscillating loop controlled by phase shift and taking into account feedback only at the speaker output.

This amplifier does not have a decoupling capacitor, so it lets the DC component of the signal through. Make sure your source has no DC component present at the output. The DC protection of the module switches on at 12VDC which is very permissive.


Audiophonics MPA-S252NC RCA Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

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 quality. As a result, they are able to deliver clear, rich, musical sound while remaining compact. This NCore technology combines the stability of the Hypex UcD series amplifiers with lower distortion and output impedance.

Audiophonics MPA-S250NC RCA Amplificateur Stéréo Class D NCore 2x250W 4 Ohm

SMPS Power Supply

The NC252MP module also integrates the amplification stage. This consists of a regulated half-bridge switching power supply (SMPS) with synchronous rectification on the main output rails. Compact, powerful and efficient, this power supply is particularly suitable for supplying a Class D amplifier cleanly.

In addition, to offer complete compatibility with the voltages delivered by the various electrical networks, the power supply is equipped with an automatic input voltage doubler. The NC252MP module also has an overload protection system.

Audiophonics MPA-S252NC RCA Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

Connectivity

The MPA-S250NC amplifier has a stereo unbalanced RCA input with gold-plated connectors. The amplifier output is made on Elecaudio BP-209 24k gold-plated speaker terminals. They also accept banana plugs or forks for quick and easy connections. A 5-12V trigger connector in 3.5mm Jack format allows to control the automatic ignition of the amplifier when integrated in a compatible system. Finally, a bistable button allows the device to be switched on.

Audiophonics MPA-S252NC RCA Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

100% Aluminum case

We integrate this Hypex NCore NC122MP amplifier in a 100% black brushed aluminum case. This case offers an elegant finish, the thick walls giving it a great resistance, allowing to protect the components as it should. The natural conduction of the aluminum, as well as a studied air flow, allow to dissipate the heat produced by the module. In addition, the case is silk-screened on the front with the NCore logo and on the back with the nomenclature of each input/output.

Its very compact size, with a small width, allows to reduce the footprint to a minimum, offering high performance in a small space.

Technical characteristics

Specifications
Product typeAmplifier
ClassD
Number of channelStereo (2)
Max. power (@ 1kHz, THD=1%)2x150W @ 8Ω
2x250W @ 4Ω
2x180W @ 2Ω
Input1x Unbalanced Stereo RCA
OutputSpeaker terminals
Trigger5-12V
THD+N0.0015%
SNR121dB
Output noise30µV
Output impedance1.5mΩ
Frequency response10Hz - 50kHz
Efficiency92%
Input sensitivityMax Power at 1.66V RMS
General
Supply voltage230V / 110V (automatic switch)
Case materialBrushed Aluminium
Dimensions141 x 357 x 65mm
Weight1860g
ColorBlack
Package1x Audiophonics MPA-S250NC RCA
1x Power cable
 
Data sheet
InputRCA
OutputSpeaker terminal
ColorBlack
Channel2 (Stereo)
ClassClass D / T
Amplifier chipHypex Ncore
Power (W)150.0
 
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Average votes
4.8 / 5
18 reviews
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Note :
 5/5
Date :
audiophonics 2*125 w
connecté à mon ampli denon avr 3313 par la prise trigger,impossible d'éteindre complètement mon ampli denon. Celui ci reste en veille avec à l'écran "ampli off" et la diode verte qui reste allumée. Sans connection à l'ampli de puissance quand il était éteint , pas d'indication sur l'écran et la diode éteinte...

Je pense donc qu'il reste en veille avec l'ampli de puissance qui lui est bien éteint.Le tout est branché sur un filtre de courant audioquest 3.
A quoi est ce dû?
Merci pour votre réponse.
 (0)
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This review has been posted for AUDIOPHONICS MPA-S250NC RCA Class D Stereo Amplifier Ncore 2x250W 4 Ohm
Note :
 5/5
Date :
Flawless, beautiful Power Amp.
Thanks Audiophonics for this great Amp.
It came well packaged and protected.

My speakers sound way more dynamic now.
I used the Topping Pa5 before on my Polk R700 Speaker setup.
Not sure, if i am having a placebo, but it sound much better.
There is no hiss and popping. Dead silent amp and pure enjoyment of music.
 (0)
 (0)
This review has been posted for AUDIOPHONICS MPA-S250NC RCA Class D Stereo Amplifier Ncore 2x250W 4 Ohm
Note :
 2/5
Date :
Not better than UCD with linear PSU
Yes is more efficient than linear PSU amps but the treble is dull and not detailed at all. CI hope Purifi is much better than this. I ended selling it as i did with the NC500MP dual mono i purchased here too. Built construction is great, as all audiophonics house products but ncore is with smps is not good enough for hifi or high resolution monitoring. But Brunos's designs are advancing and the good thing is contruction is great, is durable, it really can handel 3 ohms loads, is dynamic .... but is low resolution highs... Looking for next generation of Purifi to see if they fix its high reslution weakness. Just ordered some pro class d amp for a popular brand of pro single driver passive studio monitor, Aurartone, still waiting for it. I use Focal, B&w and dynaudio only. Hope someday some class d amp can surpass my quad 606 or even my modest NAD 216thx regarding crisp highs and liquid mediums
 (0)
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This review has been posted for AUDIOPHONICS MPA-S250NC RCA Class D Stereo Amplifier Ncore 2x250W 4 Ohm
Note :
 5/5
Date :
Perfect unit - nothing more, nothing less
This is a totally boring device. Deadly quiet, lots of power, absolutely neutral, well built. It makes nothing wrong and you can hear exactly the sound of your source and your speakers. It easily controls even an Apogee Duetta Reference or a Cabasse Bora unconstrained and relaxed. And if your system sounds bad with the MPA-S250NC don’t blame this amplifier but look for the reason elsewhere. Highly recommended budget amp.
 (0)
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This review has been posted for AUDIOPHONICS MPA-S250NC RCA Class D Stereo Amplifier Ncore 2x250W 4 Ohm
Note :
 4/5
Date :
Bon Ampli de puissance
Premières écoutes...
Cet ampli est excellent si on prend le soin de le configurer avec des éléments de qualité en amont et en enceintes.
Très satisfait sur des enceintes Kef Référence 205 qui ont un rendement de 90Db.
Pas totalement satisfait sur des enceintes au rendement de 85Db.
Enfin au vu du prix, il est réellement bon.
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This review has been posted for AUDIOPHONICS MPA-S250NC RCA Class D Stereo Amplifier Ncore 2x250W 4 Ohm
 
AUDIOPHONICS MPA-S250NC RCA Class D Stereo Amplifier Ncore 2x250W 4 Ohm
The Audiophonics MPA-S250NC RCA is a stereo amplifier based on an amplification module Hypex Ncore NC252MP. This solution is ideal for anyone who...

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