Soulnote A-3core – a mighty power amplifier
24.12.2024 06:56
Japanese manufacturer of High End electronics, Soulnote presented a stereo (2 x 120 W at 4 Ohms) power amplifier A-3core, which implements the concept of "dual mono". Each channel of amplification is powered by a separate toroidal 700 W transformer.
A push-pull output stage on high-current bipolar transistors TO3 (Metal CAN-type) with a copper cooling plate (which is also a power bus) allows Soulnote A-3core to achieve hyper-realistic sound. Among other things, a four-stage Darlington configuration with super-powerful driver and pre-driver and a special ground bus are used.
In its products, Soulnote uses a special mechanical concept, which is also implemented in the Soulnote A-3core: the design of the massive device does not use tight screw connections of individual elements for acoustic reasons. The amplifier chassis and the top and bottom covers are not tightly fastened. In particular, the amplifier block has a transversely movable three-point structure with titanium guides. So, thermal expansion and contraction do not cause stress on the structure.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Power amplifiers stereo — Soulnote A-3core
Model name
A-3core
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
24000
Input impedance (single-ended) (Ω)
N/A
Output impedance (balanced) (Ω)
N/A
Output impedance (single-ended) (Ω)
N/A
Max current (A)
N/A
Output power (8Ω) (W)
N/A
Output power (4Ω) (W)
2 x 120
Gain (dBu)
N/A
Sensitivity (mV)
N/A
Frequency response low +/- 3dB (Hz)
2
Frequency response high +/- 3dB (Hz)
200000
Signal to Noise Ratio (dB)
N/A
Total Harmonic Distortion + Noise (0% global feedback) (%)
N/A
Total Harmonic Distortion + Noise (100% global feedback) (%)
0.27
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
454 × 189 × 435
Weight (kg)
29
Official link
More content
Pro-Ject Amp Box RS2 – Compact Power Amplifier
Pro-Ject has introduced a compact stereo power amplifier Pro-Ject Amp Box RS2. A distinctive feature of the new product is the use of a pair of vacuum tubes and the ability to switch the model to a bridged mode.
TIDAL AP1 – Extra Class Active Loudspeakers
German company TIDAL presented the floorstanding active acoustics TIDAL AP1. The idea of the new model was born with the launch of the TIDAL x Bugatti project - TIDAL AP1 is designed to transfer the quality of the company's top speakers to a slightly more affordable High End segment.
Yamaha NS-600A – Bookshelf Speakers with Precise Sound and Luxurious Finish
The Yamaha NS-600A speakers feature balanced and precise sound (thanks to the proprietary Harmonious Diaphragm technology) and an impressive finish of the cabinets, reminiscent of the finish of grand pianos. The Yamaha NS-600A uses innovative RS (Resonance Suppression) chambers located at the rear of the tweeter
Børresen M2 – compact loudspeakers with a grown-up sound
Danish acoustic brand Børresen Acoustics, part of Audio Group Denmark, has introduced the floorstanding speakers Børresen M2. Despite its compact dimensions, the model achieves excellent sound quality and offers a whole range of proprietary innovative developments (from a new speaker design to revolutionary methods of resonance damping).
AUER ACOUSTICS Versura V4 – Flagship Loudspeakers With Beryllium Tweeters
The new AUER ACOUSTICS Versura V4 acoustic systems are designed according to the 3.5-way principle and use 34 mm beryllium dome tweeters, a 12 cm midrange driver and the 18 cm woofer. But the main bass arsenal here is the side-radiating woofer – the 32 cm driver size allows performs from 20 Hz.
