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AUDIOPHONICS HPA-DM750ET Power Amplifier Purifi 1ET9040BA

The Audiophonics HPA-DM750ET is a Class D power amplifier featuring dual mono architecture. Integrating two Purifi 1ET9040BA amplifier modules and two independent Hypex SMPS1200A180 power supply boards, it is capable, with incredible ease, of delivering 2x750W into 4Ω or 2x375W into 8Ω, while offering exceptional richness and precision for a musical experience on a whole new level.

Average votes for this product
5.0 / 5
  Based on 5 customers reviews.

By buying this product you get 259 loyalty points


Reference : 18943
New product

2 590,00 €tax incl.

2 158,33 € tax excl.
Including 0,05 € for green tax

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Shipping date: 01-07-2025.

Orders placed before 12h (GMT+1) will generally be shipped the same day (working day).

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Facturation France
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2 Years warranty
 
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Audiophonics Workshop amplifiers range

Audiophonics HPA-DM750ET Power Amplifier Dual Mono Class D Purifi 1ET9040BA 2x750W 4 Ohm

Audiophonics HPA-DM750ET : Front view


The Audiophonics HPA-DM750ET is a Class D power amplifier featuring dual mono architecture. Integrating two Purifi 1ET9040BA amplifier modules and two independent Hypex SMPS1200A180 power supply boards, it is capable, with incredible ease, of delivering 2x750W into 4Ω or 2x375W into 8Ω, while offering exceptional richness and precision for a musical experience on a whole new level.

This Audiophonics HPA-DM750ET amplifier will integrate seamlessly into the vast majority of HiFi systems, and can even accompany the most demanding loudspeakers.

All components are housed in a solid aluminum case, sober and modern. The design of the housing also ensures efficient heat dissipation, considerably reducing the impact of interference on the signal.

Audiophonics HPA-DM750ET : Key features
Audiophonics HPA-DM750ET : Purifi 1ET9040BA Amplifier Modules

Audiophonics HPA-DM750ET : Two Purifi 1ET9040BA modules in a true dual-mono architecture

Purifi's latest Class D amplifier module, the 1ET9040BA, once again represents an exceptional solution, capable of delivering both high power and very low noise levels and incredible linearity. It's based on EIGENTAKT's proprietary second-generation amplification technology, ensuring perfectly transparent sound reproduction, respecting every detail of the audio signal. Performance correlated with impeccable measurements, both in terms of THD and IMD.

The Audiophonics HPA-DM750ET power amplifier features two Purifi 1ET9040BA modules in a dual-mono architecture, delivering 750W per channel at 4Ω while greatly reducing interference and distortion.

Audiophonics HPA-DM750ET : Hypex SMPS1200A180 power supply modules

The Hypex SMPS1200A180 switched-mode power supply is an ultra-high-efficiency model capable of developing a rated power of 1200 Watts in a compact footprint. It has been specifically designed and developed by Hypex to supply the 2 x 46V voltage required to operate the most demanding amplifier modules.

This high-quality, low-noise power supply meets the power requirements of the amplifier modules in every respect. What's more, the amplifier modules themselves have an excellent ability to reject power supply noise. As a result, the HPA-DM750ET is extremely insensitive to imperfections in the power supply network, and to voltage/current variations that can cause parasitic noise.

The Audiophonics HPA-DM750ET benefits from a truly dual-mono architecture, incorporating two Hypex SMPS1200A180 power supply modules, each responsible for efficiently and cleanly powering a Purifi 1ET9040BA amplifier module.

Audiophonics HPA-DM750ET : Hypex SMPS1200A180 power supply module

Audiophonics HPA-DM750ET : Proprietary interface "Buffer" board

One Texas Instrument OPA1656IDR OPA per channel is used. These are very low distortion AOPs offering the greatest transparency with very low THD. They are mounted on a socket allowing them to be replaced if necessary.

To suit all uses we have opted for 4 gain settings: +16.55dB (x6.72) / +22.7dB (x13.64)  / +28.75dB (x27.38) / 30.8dB (x34.67).
Settings available under the device.

Audiophonics HPA-DM750ET : Balanced and unbalanced connectors

The Audiophonics HPA-DM750ET power amplifier features simple but effective connectors for the vast majority of applications. Inputs include unbalanced RCA and balanced XLR. Output is simply via speaker terminals. A double trigger is also present (input and output), enabling the amplifier to be integrated into an automated on/off chain.

Audiophonics HPA-DM750ET : Connector diagram
1ON/OFF button
2Right channel balanced XLR input
3Right channel input switch
4Right channel single-ended RCA input
5Right channel speaker output
6Power connector
7Trigger input
8Trigger output
9Left channel speaker output
10Left channel balanced XLR input
11Left channel input switch 
12Left channel single-ended RCA input

THD vs Frequency @ 4Ω

Audiophonics HPA-DM750ET : THD vs Frequency measurement


THD+N vs Output power @ 1kHz

Audiophonics HPA-DM750ET : Mesure de THD+N vs Puissance


Frequency response @ 2.83V

Audiophonics HPA-DM750ET : Frequency response measurement

Technical characteristics

Specifications
Product typePower amplifier
Number of channels2
Amplification typeClass D dual mono
Amplification modules2x Purifi 1ET9040BA
Output power (@ THD 1%)2x 375W @ 8Ω, 0.1% THD 
2x 750W @ 4Ω, 0.1% THD
2x 1200W @ 2Ω, 0.1% THD
InputsBalanced XLR
Single-ended RCA
OutputsSpeaker terminals
Gain / Sensitivity16.55dB - 4.07V
22.7dB - 2V
28.75dB  - 1V
30.8dB - 0.775V
THD+N0.0003% @ 1W, 1kHz
0.0001% @ 10W, 1kHz
0.00006% @ 100W, 1kHz
0.000045% @ 400W, 1kHz

0.0003% @ 1W, 20Hz-20kHz
0.0001% @ 10W, 20Hz-20kHz
0.00015% @ 100W, 20Hz-20kHz
0.0001% @ 400W, 20Hz-20kHz
IMD0.0001% @ 1W, 18.5kHz+19.5kHz
0.0001% @ 10W, 18.5kHz+19.5kHz
0.0001% @ 200W, 18.5kHz+19.5kHz
Dynamic range140dB(A)
Output noise4.5µV(A)
Efficiency96% @ 1kHz, 750W, 4Ω
Output current40A
General
Supply voltage110-230V (switchable)
Total dimensions (WxDxH)435 x 355 x 73mm
Idle power0.1W
Weight4.8kg
Package1x Audiophonics HPA-DM750ET
1x Power cable
 
Data sheet
InputXLR
InputRCA
OutputSpeaker terminal
ColorBlack
ChannelDual Mono
Channel2 (Stereo)
ClassClass D / T
Amplifier chipPurifi 1ET9040BA
Power (W)750
Remote ControlNo
 
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Average votes
5.0 / 5
5 reviews
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Note :
 5/5
Date :
Rapport Q/P incroyable
Son prix est déjà sans doute assez conséquent pour pas mal de mélomanes… sauf que quand je l’ai branché il ne m’a pas fallu plus de 10 secondes pour comprendre que j’avais affaire à un ampli inouï , au propre comme au figuré et qu’il ne retournerai pas chez Audiophonics.
Dire que je redécouvre toutes les œuvres que j’écoute depuis 40 ans est un doux euphémisme.
Il est excellent sur tous les critères , sur tout le spectre . On n’a accès à cette qualité d’amplification que sur des appareils habituellement au minimum 5 fois son prix. D’où mon titre. Ce sera mon dernier ampli , plus besoin de chercher autre chose.
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This review has been posted for AUDIOPHONICS HPA-DM750ET Power Amplifier Dual Mono Class D Purifi 1ET9040BA 2x750W 4 Ohm
Note :
 5/5
Date :
Fredrik
Very nice power amplifier for demanding speakers (low impedance / high current). This amplifier is driving my Magnepan speakers with ease, and with total control without coloration.
 (0)
 (0)
This review has been posted for AUDIOPHONICS HPA-DM750ET Power Amplifier Dual Mono Class D Purifi 1ET9040BA 2x750W 4 Ohm
Note :
 5/5
Date :
Dale una oportunidad de escucha en tu sistema... y juzgalo tu mismo.
Más vale tener potencia bajo el pedal y no necesitarla que al revés.... y vaya si se nota ir sobrado de potencia. Antes usaba un Rotel RB-1552MkII en clase AB.. y muy bien ... hasta que pones el Purifi 9040 + Preamplificador Gustard P26 (Testado también con preamplificador Audio Research SP17 y Vincent SV-94)... no sabe uno de como puede sonar tu sistema cuando la potencia sobra. Los típicos comentarios de que la clase D no suena natural..... y que me decían algunos antes de apostar por este amplificador se disiparon una vez lo conecté a mi sistema.... al segundo día de pruebas... ya le quité la pegatina de protección frontal del Purifi 9040, puesto que tenía muy claro que me lo quedaría.

Ahora está junto con el Audio Research SP17 sonando... muy bien la verdad, pero es que la sinergia con el preamplificador Gustard P26 de mucho menor coste es aún mejor!..por increíble que parezca y para mi gusto... hacen una sinergia excelente.

Nada como probarlo en tu casa, con tu sistema... y ver de lo que es capaz esta bestia, apostaría que sí das el paso.. te lo quedas.

Saludos
 (0)
 (0)
This review has been posted for AUDIOPHONICS HPA-DM750ET Power Amplifier Dual Mono Class D Purifi 1ET9040BA 2x750W 4 Ohm
Note :
 5/5
Date :
Impressive and immersive sound details !
Now getting the full sound detail potential and precision of my dynaudio confidence 20 using the latest very powerful power amplifier from Audiophonics

The difference with the also very good 2 cyrus X power in mono is perceptible : in the Bass and medium: more refined and overall more immersive soundstage and no fatigue at all !
Excellent service from audiophonic all the way !


System :
-Denon avc 4800h with Dirac bass control
-2 subwoofers : B&W 610
- Source : quobuz with Octavio streamer and Denafrips Pontus 2 DAC
/ vinyl : project X2 ( ortofon 2M black ) with project Ds2 tube preamp
 (2)
 (0)
This review has been posted for AUDIOPHONICS HPA-DM750ET Power Amplifier Dual Mono Class D Purifi 1ET9040BA 2x750W 4 Ohm
Note :
 5/5
Date :
La claque totale !!!! Allez y les yeux fermés
A peine branché sur mon système habituel en remplacement d'un LPA S400 ET Purifi déjà excellent , c'est à ce jour ce que j'ai entendu de mieux .Qu'elle réserve de puissance et respect des timbres même à bas niveau . Image stéréo en 3D avec une profondeur de champ magique . Je précise que l'ampli drive des enceintes difficiles à savoir des moniteurs A2T INA sur base de dynaudio avec un rendement assez faible . les câbles sont de simples mogami . les basses sont là, sèches et non envahissantes cela grâce à la capacité dynamique énorme de l'ampli ,médium et aigus détaillés et surtout pas fatiguants. Si rodage il y aura cela ne sera encore que mieux .Oui c'est un sacré investissement coté tarif ... mais je ne le regrette pas pour cet ampli aussi bien construit et performant . Merci Audiophonics de produire des amplis de cette qualité . coté livraison c'est précis et super rapide. Laurent
 (5)
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This review has been posted for AUDIOPHONICS HPA-DM750ET Power Amplifier Dual Mono Class D Purifi 1ET9040BA 2x750W 4 Ohm
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AUDIOPHONICS HPA-DM750ET Power Amplifier Dual Mono Class D Purifi 1ET9040BA 2x750W 4 Ohm
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The Audiophonics HPA-DM750ET is a Class D power amplifier featuring dual mono architecture. Integrating two Purifi 1ET9040BA amplifier modules and...

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