AUDIOPHONICS MPA-S250NCX XLR Power Amplifier Class D Stereo Ncore NCx252MP 2x250W 4 Ohm

The Audiophonics MPA-S250NCX XLR is a stereo amplifier based on an amplification module Hypex Ncore NCx252MP. 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-S250NCX XLR

Class D Stereo Amplifier Ncore NCx252MP 2x250W 4 Ohm

Audiophonics MPA-S252NCX XLR Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

The Audiophonics MPA-S250NCX XLR is a stereo amplifier based on an amplification module Hypex Ncore NCx252MP. 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 NCx252MP Amplification Board

The amplification circuit uses a module Hypex Ncore NCx252MP. 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.
Audiophonics MPA-S252NCX XLR Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

SMPS Power Supply

The NCx252MP 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 NCx252MP module also has an overload protection system.

Audiophonics MPA-S252NCX XLR Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

Connectivity

The MPA-S250NCX amplifier has a 3-pole stereo XLR input on Neutrik NC3FAV2 sockets. 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 XLR Amplificateur Stéréo Class D Ncore 2x150W 8 Ohm

Technical characteristics

Specifications
Product typeAmplifier
ClassD
Number of channelStereo (2)
Max. power (@ 1kHz, THD=1%)2x150W @ 8Ω
2x250W @ 4Ω
2x180W @ 2Ω
Input1x Balanced Stereo XLR
OutputSpeaker terminals
Trigger5-12V
THD+N0.0015%
SNR121dB
Output noise30µV
Output impedance1.5mΩ
Frequency response10Hz - 50kHz
Efficiency92%
Input sensitivityMax Power at 1.66V RMS (2x0.83V MRS)
General
Supply voltage230V / 110V (automatic switch)
Case materialBrushed Aluminium
Total dimensions (WxDxH)145 x 355 x 64mm
Weight1860g
ColorBlack
Package1x Audiophonics MPA-S250NCX XLR
1x Power cable
 
Data sheet
InputXLR
OutputSpeaker terminal
ColorBlack
Channel2 (Stereo)
ClassClass D / T
Amplifier chipHypex Ncore
Power (W)150.0
Remote ControlNo
 
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Average votes
4.9 / 5
44 reviews
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Note :
 4/5
Date :
excellent quality
MPA-S250NCX in my hand, looks really good. The brushed metal and build are excellent.

Interior had 2 minor issues: (while every cable was routed as in pics), i would have hoped this to have a little longer power cord, routed around the board (like rca-version pics show), what is less than a € of cost-or-price added to this product...

second: one of the xlr input cable wires weren't fully seated in the plug. fix was to just unplug, push the wire fully in and plug it in again.

Other than that, soldering, twisting and wire routing was very good!

Product works as expected and sounds neutral.

i gave 4 stars, bc of the mentioned small imperfections in my book.

but overall great, robust and really beatiful looking product, i want to really emphasize the case sturdiness (no flex) and especially it's looks, these picture here don't do justice how it looks in person.
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This review has been posted for AUDIOPHONICS MPA-S250NCX XLR Power Amplifier Class D Stereo Ncore NCx252MP 2x250W 4 Ohm
Note :
 5/5
Date :
ampli de puissance
Parfait pour mon utilisation avec des enceintes Klipsch de 85W et un lecteur réseau Eversolo. Beaucoup de transparence. Basses et aigus très nettes ! Merci !
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This review has been posted for AUDIOPHONICS MPA-S250NCX XLR Power Amplifier Class D Stereo Ncore NCx252MP 2x250W 4 Ohm
Note :
 5/5
Date :
Nc250s
Nearly two years after bought this product all i can say is brilliant. If you need power amp which you'll love for good price, this is it. No need to spend money for high cost devices. If you need to enjoy at home listening sound of music it' s recommended.
 (1)
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This review has been posted for AUDIOPHONICS MPA-S250NCX XLR Power Amplifier Class D Stereo Ncore NCx252MP 2x250W 4 Ohm
Note :
 5/5
Date :
Excellent
Amplificateur xlr bien construit, chauffe légèrement.
Qualité sonore :
Timbre réaliste
Courbe de fréquence droite
Très dynamique
Images stéréo holographique
Grave profond et tendu
Rapidie , très bon sur les transitions, c’est pas un bourrin il c’est être nuancé il a de la matière.
Subjectif ont dirait un mix entre un nad pour le grave et atoll médium aiguës.
Comparer à un classe ab intégré :
Je parle de mes amplificateurs
Nad c3050, yamaha as2100,musical fidility m3si.roksan attessa.
Se sont d’excellents amplificateurs pour alimenter des petites colonnes ou enceintes étagères, pour des belles colonnes 2voie ou 3 voies
Il bat mes autres amplifications en écoute normal plus de dynamique grave mieux tenue meilleure transition grâce a sa grande puissance, mais pour moins 500€ franchement je regrette d’avoir acheté autant de classe ab pour rien j’étais jamais satisfait il manquait toujours quelques chose.
Niveau enceinte :
sonus faber sonetto 8g2, dynaudio evok 50 , et large bande altec 420. Source teac nt 503 .
 (1)
 (0)
This review has been posted for AUDIOPHONICS MPA-S250NCX XLR Power Amplifier Class D Stereo Ncore NCx252MP 2x250W 4 Ohm
Note :
 5/5
Date :
très bon raport qualité prix
Cela fait maintenant 3 mois que je vis avec ces amplis je les utilisent en home cinéma avec mon préampli DENON et franchement ces amplis sont très musicaux et quel pêche en home cinéma!
 (1)
 (1)
This review has been posted for AUDIOPHONICS MPA-S250NCX XLR Power Amplifier Class D Stereo Ncore NCx252MP 2x250W 4 Ohm
 
AUDIOPHONICS MPA-S250NCX XLR Power Amplifier Class D Stereo Ncore NCx252MP 2x250W 4 Ohm
The Audiophonics MPA-S250NCX XLR is a stereo amplifier based on an amplification module Hypex Ncore NCx252MP. This solution is ideal for anyone who...

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