AUDIOPHONICS LPA-M750ET Power Amplifier Purifi 1ET9040BA

AUDIOPHONICS LPA-M750ET Power Amplifier Mono Class D Purifi 1ET9040BA 1x750W 4 Ohm New
The Audiophonics LPA-DM750ET is a Class D power amplifier featuring mono architecture. Integrating a Purifi 1ET9040BA amplifier module and an independent Hypex SMPS1200A180 power supply board, it is capable, with incredible ease, of delivering 1x750W into 4Ω or 1x375W into 8Ω, while offering exceptional richness and precision for a musical experience on a whole new level.

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Reference : 19338
New product

1 490,00 €tax incl.

1 241,67 € tax excl.
Including 0,05 € for green tax

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Shipping date: 25-06-2024.

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

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2 Years warranty
 
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Audiophonics LPA-M750ET Power Amplifier Mono Class D Purifi 1ET9040BA 1x750W 4 Ohm

Audiophonics LPA-M750ET : 3/4 view


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

This Audiophonics LPA-M750ET 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 LPA-M750ET : Key features
Audiophonics LPA-M750ET : Purifi 1ET9040BA Amplifier Module

Audiophonics LPA-M750ET : A Purifi 1ET9040BA module in a 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 LPA-M750ET power amplifier features a Purifi 1ET9040BA module in a mono architecture, delivering 750W at 4Ω.

Audiophonics LPA-M750ET : Hypex SMPS1200A180 power supply module

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 46V voltage required to operate the most demanding amplifier modules.

This high-quality, low-noise power supply meets the power requirements of the amplifier module in every respect. What's more, the amplifier module itself has an excellent ability to reject power supply noise. As a result, the LPA-M750ET is extremely insensitive to imperfections in the power supply network, and to voltage/current variations that can cause parasitic noise.

Audiophonics LPA-M750ET : Hypex SMPS1200A180 power supply module

Audiophonics LPA-M750ET : Proprietary interface "Buffer" board

A Texas Instrument OPA1656IDR OPA is used. This is a very low distortion OPA, offering the greatest transparency with very low THD. It is mounted on a socket allowing it 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). These settings are available under the device.

Audiophonics LPA-M750ET : Balanced and unbalanced connectors

The Audiophonics LPA-M750ET power amplifier features simple but effective connectors for the vast majority of applications. Inputs include single-ended 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 LPA-M750ET : Connector diagram
1ON/OFF button
2Speaker output
312V Trigger output
4Power switch
5XLR balanced input
6Input switch
7RCA single-ended input
812V Trigger output
9Power input

THD vs Frequency @ 4

Audiophonics LPA-M750ET : THD vs Frequency measurement


THD+N vs Output power @ 1kHz

Audiophonics LPA-M750ET : Mesure de THD+N vs Puissance


Frequency response @ 2.83V

Audiophonics LPA-M750ET : Frequency response measurement

Technical characteristics

Specifications
Product typePower amplifier
Number of channelsMono (1)
Amplification typeClass D
Amplification modulePurifi 1ET9040BA
Output power (@ THD 1%)1x 375W @ 8Ω, 0.1% THD 
1x 750W @ 4Ω, 0.1% THD
1x 1200W @ 2Ω, 0.1% THD
InputsBalanced XLR
Single-ended RCA
OutputSpeaker terminal
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)
Dimensions190 x 359 x 78mm
Weight3.2kg
Package1x Audiophonics LPA-M750ET
1x Power cable
 
Data sheet
InputRCA
InputXLR
OutputSpeaker terminal
ColorBlack
Channel1 (Mono)
ClassClass D / T
Amplifier chipPurifi 1ET9040BA
Power (W)750
Remote ControlNo
 
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5.0 / 5
1 reviews
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Il dépasse largement, ce qui est étonnant déjà, le HPA-S500ET version ampli stéréo que j'ai apprécié beaucoup pendant quelques mois. Maintenant passé sur les voix surround G et D.
Avec sa propre alimentation Hypex on a un sytème double mono incroyable.
Il est plus subtile. On entend clairement les niveaux de basses, les détails fourmillent. A faible volume les détails sont présents à fort volume pas de distortion. Un régale.
On a non seulement un sytème en HC formidable pour les dynamiques importantes dans les flms en RCA (vraiment un apport important en front, surround et back avec les audiphonics le son est clair et ne casse pas les oreilles même avec des transtoires complexes alors que j'ai le NAD T778 déjà réputé pour sa dynamique sur tous les canaux) et en stéréo XLR sur un bon lecteur réseau comme le UD-701 TEAC un son merveilleux pas du tout fatiguant. Pour un prix vraiment raisonnable et un très bon SAV et surtout de bons conseils pour optimiser l'installation.
Avec un HPA-S400ET également pour les surround back G et D on obtient des détails impressionants sur des films surround sans avoir les oreiles qui vrillent même à fort volume c'est génial. Grand merci à Audiophonics pour nous permettre d'accéder à ce niveau de son.
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This review has been posted for AUDIOPHONICS LPA-M750ET Power Amplifier Mono Class D Purifi 1ET9040BA 1x750W 4 Ohm
 
AUDIOPHONICS LPA-M750ET Power Amplifier Mono Class D Purifi 1ET9040BA 1x750W 4 Ohm
The Audiophonics LPA-DM750ET is a Class D power amplifier featuring mono architecture. Integrating a Purifi 1ET9040BA amplifier module and an...

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