Soulnote M-3X – Monoblock with Differential Circuit and Zero Feedback
05.04.2025 06:22 | ~1 minute read
Soulnote M-3X is a new monoblock power amplifier from a famous Japanese company. The model will replace the Soulnote M-3 amplifier and will offer twice as much current (a 1,600 VA power transformer is used), which will provide significantly better control of the acoustics.
Soulnote M-3X is based on an original circuit using a method of equalizing the transistor current gain (which continuously changes during music playback) and a common four-stage Darlington configuration with parallel push-pull scheme without losses. Another original approach used in Soulnote M-3X is the use of a copper radiator both as power spikes with the installation of transitor terminals on the board directly under the heat sink. So, the system is completely free of unnecessary wiring, and the physical decoupling of the radiator from the chassis provides a more open and airy sound.
The voltage amp module in the Soulnote M-3X uses the latest Type-R differential circuit without feedback, using only one transistor. The amplifier uses an extremely simple circuit consisting of only four bipolar transistors and ten resistors - in terms of approach, the Soulnote M-3X resembles a vacuum tube single-ended amplifier, although it uses transistors. The Soulnote M-3X is already on sale in Japan, priced at 1,911,800 yen.
Specifications
This product is in the Hi-Fi and High End Electronics and Acoustics database
Power amplifiers mono — Soulnote M-3X
Model name
M-3X
Input sensitivity (mV)
N/A
Input impedance (balanced) (Ω)
N/A
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)
160
Gain (dBu)
22
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) (%)
0.1
Total Harmonic Distortion + Noise (100% global feedback) (%)
N/A
Max power consumption (W)
N/A
Damping factor
N/A
Dimensions (mm)
340 × 257 × 512
Weight (kg)
31
Official link
More content
Pro-Ject Audio Travel Set – a New Look at Music Centers
Pro-Ject Audio Travel Set is an ideal modern solution for music lovers who lack the quality of portable compact speakers. The model offers a full-fledged Hi-Fi approach and includes a pair of portable bookshelf speakers, a compact amplifier, cables and a flight case for carrying.
Thrax Audio Cotys – an Uncompromising MC-Phonostage from Bulgaria
The innovative Thrax Audio Cotys phono preamplifier is presented – a model designed for fans of High-End equipment and developed in Bulgaria. The device is designed to work with MC cartridges and uses a fully balanced RIAA equalizer based on LCR filters. The innovative differential input stage and nanocrystalline inductors set a new standard for noise levels – it does not exceed 70 nV! Fully adjustable load/gain (100 – 1,000 Ohms and 50 – 70 dB) is the cherry on the cake.
Evolution Acoustics SYSTEM THREE – Large-Scale Loudspeakers
Evolution Acoustics has completed a series of ten years of research and development with the release of the impressive Evolution Acoustics SYSTEM THREE acoustic system, which has become the successor to the iconic top model of the MM-series.
Sonoro Orchestra Slim Gen.2 – Bookshelf Loudspeakers with Bass from 45 Hz
Sonoro has released bookshelf loudspeakers – the second generation of the famous model is called Sonoro Orchestra Slim Gen.2. The manufacturer claims the ideal partnership of the speakers with the proprietary Sonoro Maestro Smart receiver, as well as any third-party amplification
SOtM's New Eunhasu OS Offers Direct Ethernet Connection Option
The well-known manufacturer of High-End digital equipment, SOtM has updated its own operating system Eunhasu OS (based on an upgraded Linux kernel) to version 0.5.9 (the software is used in the company's streaming products, such as the server SOtM sMS-1000SQ Eunhasu, which is shown in the photo).
