+ power aplenty, very good imaging, superb dynamics, solid built, handsome casing, very good speaker connections
- there is no logo indicating "Sparkos Edition" so no optical difference to standard edition.
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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.
This device is delivered by default configured for an input voltage of 230V AC. A switch on the bottom of the unit allows the use of 110V AC.
Power Amplifier PURIFI 1ET400A 2x400W 4 Ohm
We are proud to offer the AUDIOPHONICS HPA-S400ET SPARKOS EDITION, a stereo class D power amplifier based on two PURIFI 1ET400A modules and SPARKOS PDUs and regulators. 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 modules are 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.
The SMPS1200 switching power supply is a model with very high maximum output power of 1200 Watts. It has been specifically designed and developed by Hypex to provide 2 x 64V 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.
The two modules are driven in opposite phase, to cancel the "Power Supply Pumping" effect. This allows a greater stability of the power supply, distributing alternately on each rail the current calls, and thus increasing its capacities.
We opted for a two-level voltage regulation to optimize the power supply to the PDUs and the auxiliary voltage supplied to the modules. In this Sparkos Edition, no less than four Sparkos Labs SS7915 and SS7815 discrete voltage regulators are used. These easily outperform all monolithic TO-220 format regulators in terms of output noise, transient response and load regulation.
Two Sparkos Labs SS3602 dual discrete PDUs are also used. These Sparkos PDUs are more efficient than the LM4562s of the standard HPA-S400ET and offer lower noise and higher output current with Class A bias. The PDUs are mounted on a DIP8 socket, allowing replacement if necessary.
To suit all uses, we have opted for three gain settings, switchable by jumper on the interface board:
Designed for easy integration, the HPA-S400ET has a balanced stereo (XLR) and unbalanced (RCA) input. Bipolar selectors make it easy to change the input source and even allow independent channel control.
On output side, BP-207 Carbon / Gold 24K Ø5.5mm speaker terminals ensure excellent connection with the speakers.
A trigger module allows the amplifier to be switched on automatically from a distance. This is compatible with voltages from 5 to 12V.
This amplifier's trigger needs to be used with a mono trigger cable (sold separately).
Specifications | |
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Product type | Power Amplifier |
Output power (max) | 8Ω @1%THD : 227W 4Ω @1%THD : 425W 2Ω @1%THD : 450W |
Inputs | 1x Single-ended stereo RCA 1x Balanced stereo XLR 1x Trigger 12V |
Sorties | Speaker terminals 1x Trigger 12V |
Trigger | 2x trigger 5-12V on Jack 3.5mm connectors |
THD+N | PO=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 noise | A-weighted 11.5 µV |
Dynamic range | A-weighted 4Ω 131 dB |
SNR | A-weighted 4Ω 131 dB |
Frequency response | RL= 8Ω, f= 20-20kHz ±0.01 dB RL= 4Ω, f= 20-20kHz ±0.01 dB RL= 2Ω, f= 20-20kHz ±0.01 dB |
Output impedance | 1kHz, Iout=1A 0.07 mΩ 20-20kHz, Iout=1A <0.65 mΩ |
Input impedance | RCA: 47kΩ / XLR: 94kΩ Bypass: 2.2kΩ / 4.4 kΩ |
General | |
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Supply voltage | 230V (110V on demand) |
Dimensions | 435 x 322 x 70mm |
Weight | 5.63 kg |
Housing material | Aluminum |
Color | Black |
Power cable | Included |
Input | XLR |
Input | RCA |
Output | Speaker terminal |
Color | Black |
Channel | 2 (Stereo) |
Class | Class D / T |
Amplifier chip | Purifi 1ET400A |
Power (W) | 400.0 |
Remote Control | No |
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