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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 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.
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.
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.
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.
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.
1 | ON/OFF button |
2 | Right channel balanced XLR input |
3 | Right channel input switch |
4 | Right channel single-ended RCA input |
5 | Right channel speaker output |
6 | Power connector |
7 | Trigger input |
8 | Trigger output |
9 | Left channel speaker output |
10 | Left channel balanced XLR input |
11 | Left channel input switch |
12 | Left channel single-ended RCA input |
Technical characteristics
Specifications | |
---|---|
Product type | Power amplifier |
Number of channels | 2 |
Amplification type | Class D dual mono |
Amplification modules | 2x Purifi 1ET9040BA |
Output power (@ THD 1%) | 2x 375W @ 8Ω, 0.1% THD 2x 750W @ 4Ω, 0.1% THD 2x 1200W @ 2Ω, 0.1% THD |
Inputs | Balanced XLR Single-ended RCA |
Outputs | Speaker terminals |
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) |
Dimensions | 413 x 322 x 60mm |
Weight | 11kg |
Package | 1x Audiophonics HPA-DM750ET 1x Power cable |
Input | RCA |
Input | XLR |
Output | Speaker terminal |
Color | Black |
Channel | Dual Mono |
Channel | 2 (Stereo) |
Class | Class D / T |
Amplifier chip | Purifi 1ET9040BA |
Power (W) | 750 |
Remote Control | No |