AUDIOPHONICS HPA-S600NCX Power Amplifier Class D NCore NCx500 2x600W 4 Ohm

Two NCx500 OEM mono modules

Each channel of the Audiophonics HPA-S600NCX has its own Hypex NCore NCx500 high efficiency, low output impedance, distortion and noise amplifier circuit. This new module has greatly improved performance in terms of distortion and output impedance. Each amplifier module is capable of delivering 700W of power at 1% THD. The HYPEX integrated 1200W power supply allows them to simultaneously deliver 600W at 0.01% THD under 4Ω.

Special care is taken in the internal wiring and assembly of the amplifier, using heavy gauge power supply wires, Canare input signal cables, and speaker cables with PTFE insulation.

Switchable inputs on RCA and XLR connectors

This power amplifier has two RCA ports (dual mono) and two XLR ports (dual mono balanced). The RCA connectors are 24k gold plated with heat resistant plastic caps. The XLR connectors are from Neutrik and ensure a high quality design with metal locking latch and gold-plated contacts.

A two-position selector switch allows you to alternate the XLR input and the RCA input with ease. You can thus connect two different preamplifiers and alternate the input sources.

5-12V Trigger

A dual trigger socket (input and output) brings the comfort of an automated switch-on sequence and allows a very complete integration within your audio installation.

The power supply is connected to an IEC14 socket with gold-plated copper contacts. The latter works with a 5x20mm 3.150A fuse (supplied and already installed).

This amplifier's trigger needs to be used with a mono trigger cable (sold separately).

Heat dissipation

Because it is capable of developing considerable power, the HPA-S600NCX will be subjected to thermal stresses during use. Heat management is a key issue in achieving a high level of sonic accuracy and keeping distortion below a controlled level.

For this reason, each amplifier module is mounted on a large heat sink and is capable of dissipating heat efficiently. Also, carefully distributed ventilation holes will promote air circulation and heat removal. These heat sinks also contribute greatly to the modern and massive aesthetics of the amplifier.

Audiophonics interface board

The 2 modules are controlled in phase opposition, to cancel the "Power-Supply Pumping" effect. This makes the power supply more stable, distributing the current draw alternately on each rail, thereby increasing its capacity.

We opted for 2-level voltage regulation, to optimise the power supply to the AOPs and the auxiliary voltage supplied to the modules.

One Audiophonics OPA1656 PDU is used per channel. These are very low distortion PDUs offering the greatest transparency with very low THD. They are mounted on a DIP8 socket, allowing them to be replaced if necessary.

To suit all applications, we have opted for 4 gain settings, switchable via switch on the underside of the unit :

Total gain of 11.5dB - Maximum power reached with a 13.03V RMS signal.

Total gain of 19dB (default) - Maximum power reached with a 5.5V RMS signal.

Total gain of 24dB - Maximum power reached with a 3.09Vrms signal

Total gain of 28dB - Maximum power reached with a 1.95Vrms signal

Specifications
Product type	Power amplifier
Amplification type	Class D
Amplification modules	2* Hypex NCore NCX500
Channels	2 (Stereo)
Inputs	2* Single-ended RCA 2* Balanced 3 poles XLR
Technology	Ncore
Output power	2x500W @ 2Ω, 1kHz, THD = 0.01% 2x600W @ 4Ω, 1kHz, THD = 0.01% 2x300W @ 8Ω, 1kHz, THD = 0.01%
THD+N @ 20Hz-20kHz, 4Ω	Typ: 0.0006% Max: 0.001%
SNR	137dB
Output noise	7µV
Frequency response	0Hz - 70kHz @ +0/-3dB
Trigger	Input / Output 5-12VDC
Gain (switchable)	11.5dB 19dB 24dB 28dB
Efficiency (max power)	92%

Specifications

Product type

Power amplifier

Amplification type

Class D

Amplification modules

2* Hypex NCore NCX500

Channels

2 (Stereo)

Inputs

2* Single-ended RCA
2* Balanced 3 poles XLR

Technology

Ncore

Output power

2x500W @ 2Ω, 1kHz, THD = 0.01%
2x600W @ 4Ω, 1kHz, THD = 0.01%
2x300W @ 8Ω, 1kHz, THD = 0.01%

THD+N @ 20Hz-20kHz, 4Ω

Typ: 0.0006%
Max: 0.001%

SNR

137dB

Output noise

7µV

Frequency response

0Hz - 70kHz @ +0/-3dB

Trigger

Input / Output
5-12VDC

Gain (switchable)

11.5dB
19dB
24dB
28dB

Efficiency (max power)

92%

General
Supply voltage	115 or 230V (selectable via a switch under the device)
Max electric consumption	1300W
Housing	Sandblasted aluminum
Total dimensions (WxDxH)	435 x 355 x 73mm
Idle power	0.1W
Weight	5.66kg
Package	1x Audiophonics HPA-S600NCX 1x Power cable

General

Supply voltage

115 or 230V (selectable via a switch under the device)

Max electric consumption

1300W

Housing

Sandblasted aluminum

Total dimensions (WxDxH)

435 x 355 x 73mm

Idle power

0.1W

Weight

5.66kg

Package

1x Audiophonics HPA-S600NCX
1x Power cable

Input	XLR
Input	RCA
Output	Speaker terminal
Color	Black
Channel	2 (Stereo)
Class	Class D / T
Amplifier chip	Hypex Ncore
Power (W)	600.0
Remote Control	No

Impressionnant
N'y allons pas par 4 chemins, ça fait des années que j'écoute toute sorte d'amplis A/B, franchement on entre dans un nouveau monde avec ces modules Ncore Ncx500.
Tout y est, un punch incroyable en bas qui drive tout ce qui se présente.
Une vivacité dans les transitions hallucinante, des médiums qui filent à l'infini.
Force et finesse tout à la fois !
A faible comme à fort volume le son est enveloppant, la scène est extrêmement détaillée, les basses viennent jouer avec votre cage thoracique.
Le seul inconvénient que je trouve à ces ampli de nouvelle génération c'est qu'il devient excessivement difficile d'écouter des mastering très compressés tellement ils sont precis.
On est clairement sur un rapport qualité/prix tout à fait remarquable...
Il surclasse largement des modèles A/B au triple de son prix.
Sur des Dali Rubikore 8 le spectacle est magistral...
Vous hésitez comme j'ai hésité ? N'hésitez plus.

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