AUDIOPHONICS MPA-S250NC RCA Power Amplifier Class D Stereo Ncore NC252MP 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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Shipping date: 16-07-2024.

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Audiophonics MPA-S250NC RCA

Class D Stereo Amplifier Ncore NC252MP 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 (2x250W) 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.

This amplifier's trigger needs to be used with a mono trigger cable (sold separately).

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.

Test du Audiophonics MPA-S250NC par AudioScienceReview (Amir)

Audiophonics has produced one adorable stereo amplifier! I just want to sit there and look at it. :) Fortunately beauty goes beyond the skin, sporting a performance Hypex class D amplifier, producing top class results in all the measurements. You get near state of the art performance at bargain prices with scant space needed to dedicate to the amplifier. "
Test du Audiophonics MPA-S250NC par AudioScienceReview (Amir)

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
Remote ControlNo
 
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Average votes
4.8 / 5
24 reviews
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Note :
 5/5
Date :
Superb quality
Superb quality, beautifully made power amplifier,highly recommended
 (0)
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This review has been posted for AUDIOPHONICS MPA-S250NC RCA Power Amplifier Class D Stereo Ncore NC252MP 2x250W 4 Ohm
Note :
 4/5
Date :
Audiophonics mp-250
Bonne tenue des haut-parleurs, hyper définition sur l'ensemble du spectre. Avec mon preamplificateur le gain est trop élevé et il y a du bruit de fond sur les compressions.
En revanche excellente association avec des enceintes dynaudio et un preamplificateur avec moin de niveau de sortie.
 (1)
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This review has been posted for AUDIOPHONICS MPA-S250NC RCA Power Amplifier Class D Stereo Ncore NC252MP 2x250W 4 Ohm
Note :
 5/5
Date :
Très bien
Envoi très rapide et protégé. L'appareil est bien conçu, ne chauffe pas, discret, sauf cette satanée led blanche, alors qu'il sert aussi en support home cinéma, donc dans le noir...
Le son n'est pas très chaud, mais c'est souvent le signe d'un manque de coloration et donc de distorsion.. les Klipsch Heresy lll en frontales sont bien reprises la ou le Yamaha rx V6 était un peu mou, les autres voies ont plus d'impact, les effets plus sensibles..
En le branchant, j'ai senti qu'il serait moyen avec les câbles Viard premium, que j'ai remplacés dans la foulée par une commande de simple, moins cher. mais très efficace Canare 4S11.
Il est relié au "préampli" par des RCA Canare L4e6 succédant à de vieux Mit...
J'aurais préféré les branchements H.P en bas, mais en pratique, ils sont mieux là où ils sont...
Un bon achat...
 (0)
 (0)
This review has been posted for AUDIOPHONICS MPA-S250NC RCA Power Amplifier Class D Stereo Ncore NC252MP 2x250W 4 Ohm
Note :
 5/5
Date :
Highly recommended AMP
I'm using a miniDSP flex RCA to drive the MPA-S250NC amp. Both devices in combination are superb. There is no noise or hum. Without an input signal, it's simply dead silent. Listening to music is really an enjoyment.

- The built quality and finish of the MPA-S250NC amp is perfect.
- The output signal measurements are well known and can be found on the ASR forum.
- The audio output of the amp is excellent.
 (1)
 (0)
This review has been posted for AUDIOPHONICS MPA-S250NC RCA Power Amplifier Class D Stereo Ncore NC252MP 2x250W 4 Ohm
Note :
 5/5
Date :
Jusqu'à maintenant, que du bon!
Première bonne surprise: l'ampli non dispo avec délai de 2-4 semaines. Je commande et je le reçois 4 jours plus tard. Merci @audiophonics
2ème surprise (qui ne devrait pas en être une): le son est superbe. Je reconnais cependant l'improbabilité de mon installation: en remplacement de 2 blocs mono flying mole, l'ampli est connecté à un sélecteur de sources audiophonics partagée entre une interface usb esi gigaport ex, la platine dvd, la télé et un player hidizs ap80 pour la réception bluetooth , et à mes antiques Jamo e610 pour les sorties. Quelques essais en bluetooth, puis en filaire avec une playlist sur le pc et enfin la nvidia shield. Sans conteste ni prétention audiophile de ma part, cet ampli délivre un son pêchu, détaillé riche en aiguës et basses... Boitier massif que je loge dans une case de mon meuble TV ikea, sans chauffe apparente.
Mon impression est donc plus que positive . A voir sur la longueur, mais j'ai confiance.
Merci encore pour cet appareil!
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This review has been posted for AUDIOPHONICS MPA-S250NC RCA Power Amplifier Class D Stereo Ncore NC252MP 2x250W 4 Ohm
 
AUDIOPHONICS MPA-S250NC RCA Power Amplifier Class D Stereo Ncore NC252MP 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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