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Soulnote M-3X Monoblock
• Overview – The Soulnote M-3X Monoblock, released in 2022, is a solid-state Class AB monoblock power amplifier engineered with Soulnote’s zero-negative-feedback philosophy to deliver reference-level dynamics, transparency, and musical realism.
• Zero-Feedback Circuitry – Employing Soulnote’s proprietary non-negative feedback topology, the Soulnote M-3X Monoblock preserves transient speed, harmonic integrity, and dynamic expression while maintaining exceptional control over demanding loudspeaker loads.
• Reference Mono Architecture – The Soulnote M-3X Monoblock features true monaural construction, oversized linear power supplies, mechanically isolated circuitry, and premium discrete components for outstanding channel separation and effortless musical presentation.
An enhanced current version of the M-3
We have been able to double the current delivery capacity without compromising the spatial expression or penetrating power of the single push, achieving in that way both delicate expression and overwhelming power.
Newly developed transistor pairing method
We have developed a new precise pairing method to match the fluctuation rate of hfe (current amplification factor), which consistently changes on the time axis due to transistor current changes during music playback. This method involves inputting hfe measurement data for a large number of transistors at various current values, calculating the Euclidean distance for all combinations, and then selecting transistor pairs that are within the standard value (a level that can be called identical if measurement errors are taken into account). Doing so has enabled us to achieve a “blur-free parallel push-pull” comparable to a single push-pull. The output stage transistors are a pair of industrial TO3 (metal can), the same type used in the M-3. The driver stage also incorporates the TO3P transistors to easily drive these two TO3 transistors for a total of four Darlington construction stages.
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Soulnote M3 Mono Amplifier
• Overview – The Soulnote M3 Mono Amplifier, released in 2019, is a solid state pure Class A monoblock design engineered with zero global feedback topology to deliver ultra-fast transient response and uncompromised musical transparency.
• Circuit Architecture – Built around Soulnote’s non-parallel push-pull output stage and discrete driver design, the amplifier emphasizes instantaneous current delivery, wide bandwidth, and exceptionally low phase distortion.
• Sonic Character – The Soulnote M3 Mono Amplifier is celebrated for explosive dynamics, deep tonal saturation, and expansive soundstage layering, making it ideal for high-resolution loudspeakers requiring precision and authority.
• Specifications – Pure Class A solid state topology, approximately 200W into 8Ω and 400W into 4Ω, wide frequency response beyond 20Hz–100kHz, extremely low distortion, and high current capability for difficult loads.
• Dimensions – Each chassis measures approximately 454 mm wide × 189 mm high × 430 mm deep, requiring generous ventilation to support continuous Class A thermal operation.
• Weight – Each monoblock weighs roughly 32 kg, reflecting oversized transformers, heavy aluminum construction, and substantial heat sinking for stable, long-term performance.
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SoulNote is a Japanese high-end audio manufacturer established with a clear philosophy of minimising signal interference and preserving musical energy at every stage of the audio chain. Emerging from Japan’s precision engineering culture, the brand focuses on non-feedback circuit design, simplified signal paths, and mechanical integrity, aiming to deliver sound that is immediate, dynamic, and emotionally engaging rather than overly processed.
SoulNote amplifiers, DACs, and source components are engineered with an emphasis on discrete circuitry, independent power regulation, and vibration control. These design choices are rooted in fundamental electrical principles rather than short product cycles, which makes pre-owned SoulNote equipment particularly relevant. Well-maintained pre-owned units continue to perform at a high level, offering transparency, speed, and tonal balance that integrate confidently into modern high-resolution systems.
Across Singapore, Malaysia, and Southeast Asia, SoulNote has gained recognition among audiophiles seeking Japanese engineering with a strong focus on musical realism and long-term ownership. On SoundTribeAsia, SoulNote equipment — new and pre-owned — is offered by verified dealers, providing transparent listings, clear condition reporting, and the assurance of purchasing through a trusted regional marketplace rather than fragmented individual dealer sites.