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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.
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.
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.
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.
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.
1 | ON/OFF button |
2 | Speaker output |
3 | 12V Trigger output |
4 | Power switch |
5 | XLR balanced input |
6 | Input switch |
7 | RCA single-ended input |
8 | 12V Trigger output |
9 | Power input |
Technical characteristics
Specifications | |
---|---|
Product type | Power amplifier |
Number of channels | Mono (1) |
Amplification type | Class D |
Amplification module | Purifi 1ET9040BA |
Output power (@ THD 1%) | 1x 375W @ 8Ω, 0.1% THD 1x 750W @ 4Ω, 0.1% THD 1x 1200W @ 2Ω, 0.1% THD |
Inputs | Balanced XLR Single-ended RCA |
Output | Speaker terminal |
Gain / Sensitivity | 16.55dB - 4.07V 22.7dB - 2V 28.75dB - 1V 30.8dB - 0.775V |
THD+N | 0.0003% @ 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 |
IMD | 0.0001% @ 1W, 18.5kHz+19.5kHz 0.0001% @ 10W, 18.5kHz+19.5kHz 0.0001% @ 200W, 18.5kHz+19.5kHz |
Dynamic range | 140dB(A) |
Output noise | 4.5µV(A) |
Efficiency | 96% @ 1kHz, 750W, 4Ω |
Output current | 40A |
General | |
---|---|
Supply voltage | 110-230V (switchable) |
Total dimensions (WxDxH) | 191 x 386 x 82mm |
Ide power | 0.1W |
Weight | 3.2kg |
Package | 1x Audiophonics LPA-M750ET 1x Power cable |
Input | XLR |
Input | RCA |
Output | Speaker terminal |
Color | Black |
Channel | 1 (Mono) |
Class | Class D / T |
Amplifier chip | Purifi 1ET9040BA |
Power (W) | 750 |
Remote Control | No |
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