Audiophonics AP-300S500NC Power Amplifier Ncore NC502MP

AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm
The Audiophonics AP300-S500NC is a stereo amplifier based on an amplification module Hypex Ncore NC502MP. This solution is ideal for anyone who wants to have a large power reserve (2x500W @ 4Ω) without sacrificing sound reproduction quality.

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Shipping date: 21-05-2024.

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AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm

AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm

The Audiophonics AP300-S500NC is a stereo power amplifier based on an amplification module Hypex Ncore NC502MP. This solution is ideal for anyone who wants to have a large power reserve (2x500W @ 4Ω) without sacrificing sound reproduction quality. This amplifier block will be suitable for example to accompany demanding speakers, to sound large listening rooms or for studio applications requiring a large headroom without compromising the accuracy and richness of the audio message.

All components are integrated in a simple and robust 100% Aluminium housing with openings to facilitate heat dissipation. Its design also allows it to limit the impact of interference on the signal.

Audiophonics AP300-S500NC: Hypex Ncore NC502MP Amplification Board

The amplification circuit uses a Hypex Ncore NC502MP module. This is a versatile high-performance Class D amplifier which offers a tremendous power of 2x500W under a 4Ω load while taking advantage of Class D amplifiers high efficiency.

Its main characteristics are its flat frequency response regardless of load impedance, its almost frequency-independent distortion level and its ability to reject EMI interference. Its operation is based on a self-oscillating loop controlled by phase shift which does not take feedback into account except at the speaker output level.

AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm

Audiophonics AP300-S500NC: NCore Technology

NCore amplifiers are the first Class D amplifiers to approach the performance of operational amplifiers, but also to surpass them in terms of sound quality. As a result, they are able to deliver clear, rich, musical sound while remaining compact. This NCore technology combines the stability of the Hypex UcD series amplifiers with lower distortion and output impedance.

AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm

Audiophonics AP300-S500NC: SMPS Power Pupply

The NC502MP module also integrates its own power stage. It consists of a regulated half-bridge switching power supply (SMPS) with synchronous rectification on its main output rails. Compact, powerful and efficient, this power supply is particularly suitable to provide clean power to a Class D amplifier.

Its power supply can work with different voltages delivered by the various electrical networks, the power supply is indeed equipped with an automatic input voltage doubler. The NC502MP module also has an overload protection system.

AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm

Audiophonics AP300-S500NC: Connectivity

The AP300-S500NC amplifier features a 2-pole stereo RCA input on gold-plated sockets, plus a 3-pole stereo XLR input for balanced signal processing. The XLR or RCA input source is selected via two switch buttons (right and left channel). The amplifier output is made on Elecaudio BP-209 24k gold-plated speaker terminals. They also accept banana plugs or spades for quick and easy connection. A 5-12V trigger connector in 3.5mm Jack format allows to control the automatic ignition of the amplifier when integrated in a compatible system. Finally, a bistable button is used to switch the unit on and off.

AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm

Audiophonics AP300-S500NC: 100% Aluminum Case and clean lines>

The Hypex NCore NC502MP amplifier is housed in a 100% black brushed aluminum case. The thick walls of this elegantly-finished case are highly resistant, providing the components with the protection they need. The natural conduction of aluminum, together with a carefully designed air flow, helps dissipate the heat generated by the module. In addition, the acrylic front panel is screen-printed with the Audiophonics logo, and the rear with the nomenclature of each input/output. Its compact size makes it easy to integrate into any audiophile installation, offering high performance in a small space.

AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm

Technical characteristics

Specifications
Product typeAmplifier
Amplification typeClass D
Number of channelStereo (2)
Max. power (@ 1kHz, THD=1%)2x350W @ 8Ω
2x500W @ 4Ω
2x450W @ 2Ω
Input1x Single Ended Stereo RCA
1x Balanced Stereo XLR
OutputSpeaker terminals
Trigger5-12V
THD+N0.0018%
SNR124dB
Output noise47µV
Output impedance1.5mΩ
Frequency response10Hz - 48kHz
Efficiency92%
Input sensitivityMax Power at 2.35V RMS
XLR : 2x1.17V RMS
RCA : 2.35V RMS
General
Supply voltage230V / 110V (automatic switch)
Case materialBrushed Aluminium
Dimensions300 x 220 x 65mm
Weight2080g
ColorBlack
Package1x Audiophonics AP300-S500NC
1x Power cable
 
Data sheet
InputXLR
InputRCA
OutputSpeaker terminal
ColorBlack
Channel2 (Stereo)
ClassClass D / T
Amplifier chipHypex Ncore
Power (W)500.0
Remote ControlNo
 
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5.0 / 5
2 reviews
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 5/5
Date :
Sweet Spot of Class D Power Amplification
I bought this power amplifier to run a pair of difficult to drive but well loved Infinity Kappa 9's. It handles them with aplomb. Zero background noise, a common complaint on prior Class D amplifiers. For 700 Euros shipped, it is a bargain if you don't want to build yourself. The Purifi based amplifiers may put up slightly better specifications, but in my room I can't ask for more than this amplifier deliveres for the price.
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This review has been posted for AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm
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 5/5
Date :
Jirka Vopicka
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great, small size is advantage, high performance and amazing sound. Best buy.
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This review has been posted for AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm
 
AUDIOPHONICS AP300-S500NC Class D Stereo Power Amplifier Ncore NC502MP 2x500W 4 Ohm
The Audiophonics AP300-S500NC is a stereo amplifier based on an amplification module Hypex Ncore NC502MP. This...

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