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

Great amp, Great company
Needed more headroom for my Arendal 1723 monitor s speakers. Tried Fosi ZA3 300 watts per channel using monoblocs and sound improved significantly. Decided to jump to 600 watts per channel and landed on your website. Now I’m where I need to be. I was concerned about ordering from USA but pleasantly surprised when my order arrived within 3 days! Shipping was even faster than ordering in US. Build quality is fantastic and sound keeps improving with break in. This is the last amp you will need if you’re looking for more power to drive speakers with lower sensitivity. All the nuances in the recording can now be heard at volume levels that are not ear splitting. Thanks for a great product and great buying experience..

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This review has been posted for AUDIOPHONICS HPA-S600NCX Power Amplifier Class D NCore NCx500 2x600W 4 Ohm

Top
Really the precision, control and power is out of this world. The only problem I have is that the 12V trigger in/outs accept only mono 3.5 jacks, if you try to use stereo jack it creates ground loop problems. This was not a problem with the nc502mp aps that I have.

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This review has been posted for AUDIOPHONICS HPA-S600NCX Power Amplifier Class D NCore NCx500 2x600W 4 Ohm

a real beast
Hypex NCX500 doesn't need any presentation about its quality....
this amplifier is really well built more than what's visible from site images. Bindings are really well done.
The only note is about OPA: perhaps a couple of OPA1612 would like to be a fantastic upgrade.
Super suggested buy!!!

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This review has been posted for AUDIOPHONICS HPA-S600NCX Power Amplifier Class D NCore NCx500 2x600W 4 Ohm

Fantastic!
This power amp is just absolutely fantastic! The build quality is much nicer in real life than what the pictures can express! I picked this NCx500 based version over the Purifi 1ET400A, because the Hypex module is more or less exactly the same module, but improved on. The sound quality is amazing, the power and control is almost unimaginable! I can highly recommend!

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This review has been posted for AUDIOPHONICS HPA-S600NCX Power Amplifier Class D NCore NCx500 2x600W 4 Ohm