AUDIOPHONICS AP300-M400ET Power Amplifier Purifi 1ET400A

AUDIOPHONICS AP300-M400ET Amplificateur de Puissance Class D Mono Purifi 1ET400A 1x400W 4 Ohm
Class D mono power amplifier based on a PURIFI 1ET400A module and a HYPEX SMPS600A400 power supply.

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Reference : 18444
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669,00 €tax incl.

557,50 € tax excl.
Including 0,05 € for green tax

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Shipping date: 27-02-2024.

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

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Accessories for this product

Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.

 
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AUDIOPHONICS AP300-M400ET

Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm


We are proud to present AUDIOPHONICS AP300-M400ET,  a class D mono power amplifier based a PURIFI 1ET400A module. This ready-to-use version is designed for audiophiles needing a foolproof amplification solution, with a considerable power reserve as well as impeccable linearity. The PURIFI module is indeed among the most rigorous Class D amplification solutions on the market, with simply exceptional measured performance.

This device offers high level sound reproduction which will be suitable to drive demanding speakers, to sonorize large listening rooms or for studio applications requiring a considerable headroom without compromising on the precision and richness of the audio message.

All of the components are integrated in a sober and robust 100% Aluminum housing with openings and heatsinks to help heat dissipation. Its design also allows it to block signal interference.

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm

PURIFI 1ET400A module

  • The amplification circuit uses its own PURIFI 1ET400A module. This high performance Class D amplifier circuits offers a very comfortable power of 200W (@ 8Ω) while making the most of Class D amplifiers high efficiency rating.
  • The 1ET400A module has a >75dB high gain loop over the entire frequency band, providing high performance across the whole spectrum and surpassing any amplifier regardless of its class.
  • Thanks to hyper-low intermodulation distorsion (IMD) the AP300-M400ET achieves incredible precision over the whole spectrum, unmatched by audio amplifiers of any technology or operating class.
  • THD remains extremely low at any frequency and any power level right until clipping. This translates into a total lack of sonic signature, and an ability to reproduce any type of music without preference for genre or production style.
  • The output noise is negligible, which allows deep silences and prevents losing details when listening at low volume.
  • The circuit benefits from a high level of rejection (PSRR) which minimizes the impact of power supply on audio performance.
  • Load-invariant frequency response and negligible output impedance enables the AP300-M400ET to drive the most demanding speakers with ease.
  • Very low idle losses and reduced electromagnetic interference (EMI). The High loop gain allows relaxed timing of the power MOSFETs without degrading audio performance
  • The AP300-M400ET interfaces its amplifier module with a custom module specially developed for its optimal integration.

Power Module Hypex HYPEX SMPS600N400


SMPS600N400 switching power supply is a model with very high maximum output power of 600 Watts. It has been specifically designed and developed by Hypex to provide 2 x 65V voltage required for operation of the most demanding amplifier modules.
This low noise high quality Power supply, meets every energy needs of the amplification modules. Furthermore, the amplifier modules themselves have an excellent ability to reject power supply noise. The AP300-M400ET has lowest sensitivity to the variations of your electrical network  liable to cause parasitic noise.

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm

Audiophonics Interface Card

The amplifier module Purifi is driven by a controller module of our design. 

A Texas Instrument LM4562 OPA per channel is used, these are very low distortion AOPs offering the greatest transparency with a very low THD. They are mounted on socket allowing their replacement if necessary

To suit all applications, we've opted for four gain settings, switchable via jumper on the underside of the unit.

Connectivity

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm


Designed for easy integration, the AP300-M400ET has balanced (XLR) and unbalanced (RCA) mono inputs. A bipolar selector switch makes it easy to change the input source.

On the output side, a pair of BP-207 carbon gold 24K Ø5.5mm insulated terminal blocks provide an excellent connection to loudspeakers and support bare cables (5.4mm), banana plugs and forks.

Trigger


The AP300-M400 ET has a 5-12V trigger input integrated in a low consumption circuit (5 mA). Your amplifier blocks can thus easily reach your High Fidelity installations with remote power on control.

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm

THD+N

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm

Frequency response

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm

THD vs Freq

AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm

Technical characteristics

Specifications
Product typePower Amplifier
Output power (max)8Ω @1%THD : 227W
4Ω @1%THD : 425W
2Ω @1%THD : 450W
THD+NPO=1W, f=1kHz 0.0007 %
PO=10W, f=1kHz 0.00026 %
PO=100W, f=1kHz 0.00015 %
PO=1W, f=20-20kHz 0.0007 %
PO=10W, f=20-20kHz 0.00029 %
PO=100W, f=20-20kHz 0.00017 %
IMD (CCIF)PO=1W, f=18kHz+19kHz 0.00025 %
PO=10W, f=18kHz+19kHz 0.00022 %
PO=100W, f=18kHz+19kHz 0.00027 %
IMD (DIM)PO=1W, DIM30 0.002 %
PO=10W, DIM30 0.002 %
PO=100W, DIM30 0.002 %
Idle noiseA-weighted 11.5 µV
Dynamic rangeA-weighted 4Ω 131 dB
SNRA-weighted 4Ω 131 dB
Frequency responseRL= 8Ω, f= 20-20kHz ±0.01 dB
RL= 4Ω, f= 20-20kHz ±0.01 dB
RL= 2Ω, f= 20-20kHz ±0.01 dB
Output impedance1kHz, Iout=1A 0.07 mΩ
20-20kHz, Iout=1A <0.65 mΩ
Input impedanceRCA: 47kΩ / XLR: 94kΩ
Bypass: 2.2 / 4.4 
Power supplyAC 110 / 230V (Automatic detection of the input voltage)
Dimensions300 x 220 x 65mm
Weight1980g
Power cableIncluded
 
Data sheet
InputXLR
InputJack 6.35mm
InputRCA
OutputSpeaker terminal
ColorBlack
Channel1 (Mono)
ClassClass D / T
Amplifier chipPurifi 1ET400A
Power (W)400.0
Remote ControlNo
 
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AUDIOPHONICS AP300-M400ET Power Amplifier Class D Mono Purifi 1ET400A 1x400W 4 Ohm
Class D mono power amplifier based on a PURIFI 1ET400A module and a HYPEX SMPS600A400 power supply.

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