A-2 ver.2

Soulnote · A

A-2 ver.2

A reference-grade integrated amplifier engineered for absolute temporal clarity and dynamic agility.

The Soulnote A-2 ver.2 represents a decisive evolution in integrated amplification, bridging the gap between the flagship Series 3 and high-end accessibility. By adopting the high-speed, high-power TO3P output transistors found in the reference A-3, the A-2 ver.2 achieves a level of transient speed and grip that few integrated designs can match. It discards the crutch of negative feedback entirely, relying instead on precision-matched components and a simplified signal path to preserve the raw life force of the recording. Positioned as the cornerstone of the A series, this model introduces a breakthrough reinforced driver stage that maintains high standing current to compensate for dynamic fluctuations. This refinement provides the amplifier with a remarkable sense of composure, ensuring that even demanding loudspeakers are driven with effortless command and natural tonal texture. Sonically, the A-2 ver.2 is characterised by its striking transparency and holographic spatial imaging. Rather than imposing an artificial signature, it presents music with a vivid, uncompressed quality that prioritises timing and micro-detail. It is an amplifier built for the listener who demands total honesty from their system and the flexibility to reconfigure their amplification as their setup evolves.

Key Features

01

Advanced TO3P Transistor Stage

Utilises high-speed TO3P transistors in both the driver and output stages, precisely paired to eliminate tonal smearing.

02

Non-NFB Discrete Circuitry

Features a fully balanced, non-negative feedback design to prevent signal degradation and maintain original musical timing.

03

Optimised Power Delivery

A high-capacity toroidal transformer focuses on instantaneous current supply at low impedances, enhancing grip and control.

04

Relay-Switched Balanced Attenuator

Employs high-precision resistors switched by relays for volume control, ensuring pristine clarity even at low listening levels.

05

Flexible Operation Modes

Offers versatile switching between integrated stereo, bi-amp monaural, and dedicated power amplifier configurations.

The Engineering Breakthrough

Chapter 01

The Engineering Breakthrough

The primary evolution of the version 2 platform lies in the reinforced driver stage. By applying a large standing current to the same TO3P transistors used in the final output, the A-2 ver.2 instantly compensates for hFE fluctuations caused by current demand. This design choice results in a level of dynamic drive that significantly exceeds the capabilities of the original model.
Mechanical Tuning

Chapter 02

Mechanical Tuning

Sound quality in Soulnote components is inseparable from mechanical behaviour. The A-2 ver.2 features a floating, unfixed top cover supported at only three points, which allows resonant energy to dissipate naturally rather than reflecting back into the circuit. This technique, derived directly from the flagship Series 3, creates a more open and unconstrained presentation.
Signal Path Integrity

Chapter 03

Signal Path Integrity

To preserve absolute freshness, the input terminals, selector, volume control, and voltage amplification stage are concentrated on a single multi-layer board. By soldering cables directly to the board and eliminating unnecessary connectors, the signal travels the shortest possible path without interference from shielding, filters, or induction components.

Specifications

ModelA-2 VER2 SF (Premium Silver) / A-2 VER2 BF (Premium Black)


Maximum output80 W × 2 (8 Ω), 160 W × 2 (4 Ω)

Total harmonic distortion0,16 % (1 W, 8 Ω)
Frequency responseLoudspeaker, 8 Ω / 1 W: 3 Hz to 240 kHz (±1,0 dB)

Input sensitivity/ImpedanceLINE 1, 2, 3 (Balance): 700 mV / 16 kΩ LINE 4, 5, 6: 700 mV / 8 kΩ
S/N110dB (IHF A network)
Power voltage235 W (J60065), 70 W (idling)
Dimensions430(W) × 160(H) × 423(D) mm
Weightapprox. 20 kg
Included accessoriesRemote control, Spikes, Power cable

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