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Soulnote A-2 V2 Integrated Amplifier

$12,250.00

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Soulnote A-2 V2 Integrated Amplifier

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Soulnote A-2 V2 Integrated Amplifier

Soulnote

Country of origin: Japan

Soulnote A-2 V2 Integrated Amplifier

SKU: A-2-V2-BLACK
Sale price$12,250.00

Includes GST. 🚚 Free shipping on orders over $100 Australia wide at checkout.

Fully discrete, non-negative feedback circuit to deliver 100 watts of high-speed, transparent power. This refined version utilizes a massive 600VA toroidal transformer and a unique "four-way" configuration for flexible mono or stereo operation. Precision-matched output transistors ensure a vivid and natural soundstage.

In stock
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Every order ships free to any address in Australia via fully tracked, insured delivery. You’ll receive a tracking link once your order is dispatched so you can follow it the whole way. Estimated delivery is 1-4 business days.

We handle your warranty so you don’t have to. If something isn’t right, simply get in touch and we will coordinate directly with the Australian importer on your behalf. Find out more. click here to lodge a warranty claim.

Whether you’re browsing or already unboxing, Geoff is your friendly hi-fi guide available 7 days a week. From choosing the right system to setting up your new purchase, expert advice is always within reach. Contact Geoff today.

Price is important, but building the right system synergy is equally so. If you’ve found a better price on one of our products or listings, simply get in touch with Geoff. Don’t let price stand in the way of working with HeyNow Hi-Fi to find the right result for your system.

Description

A-2 Ver. 2 Integrated Amplifier

Premium Silver/Premium Black

Version 2 is a dramatic evolution based on the knowledge gained from the 3 series.

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Simple configuration using non-feedback discrete circuits

The amplifier circuit is a completely non-feedback amplifier with no feedback loop whatsoever. The simple configuration of just a power amplifier with a selector and volume is essential to maintain the freshness of the signal without allowing it to deteriorate.

Parallel push-pull with high-speed and high-power TO3P transistors

The output stage is a parallel push-pull configuration using the same high-speed, high-output TO3P transistors used in the A-3. The output stage transistors are precisely paired with hfe, eliminating the sound bleeding that is a drawback of parallel push-pull configurations.

Super powerful driver stage

The driver stage also uses the same TO3P transistor as the output stage. By passing a large current through the driver, it instantly compensates for hfe fluctuations caused by current changes in the output stage, generating powerful driving force. This is the biggest difference from the original and a breakthrough.

4-stage Darlington circuit

To fully drive the final transistor, a four-stage Darlington configuration using high-frequency transistors is used, and the amount of current for each stage is optimized, providing ample driving power for any speaker.

Newly developed voltage amplification stage

The voltage amplification stage circuit has also been newly developed for the A-2 ver. 2. It has been significantly simplified from the original, and the bias circuit has also been completely redesigned.

Non-impregnated large toroidal power transformer

By lowering the output voltage compared to the original, we prioritized instantaneous current supply capability at low impedance over maximum output at 8 ohms, resulting in a dramatic improvement in the audible power and grip.

Relay switching type balanced attenuator

For volume adjustment, instead of a rotary slider or electronic volume, we have adopted a balanced attenuator system that switches high-precision resistors with SOULNOTE's unique relay. This dramatically improves clarity and creates a three-dimensional sound image. Furthermore, sound quality at low volumes is also significantly improved, eliminating the worry of gang error.

Ideal construction

The input signal line is minimized by concentrating the input terminal, input selector, volume, and non-feedback voltage amplification stage on a single multi-layer board. This eliminates factors that degrade sound quality, such as vibrations and inductance components in the connection cables, and the effects of radiated noise, without using any shielding or filters that would adversely affect sound. This is an ideal construction that could only be achieved with a relay-switching type balanced attenuator.

Uses a 4-layer board with a copper foil thickness of 70 microns

The power block, consisting of the output stage and main power supply, uses a 70-micron copper foil inner layer plane as the power bus bar, minimizing the large-current loop of "rectifier capacitor → output transistor → speaker + terminal → speaker - terminal → rectifier capacitor." By eliminating the inductance component of the large-current line, we have achieved extremely excellent frequency characteristics and stability.

Contactless wiring

Not only the signal lines but also the power lines have no connectors, and the cables are soldered directly to the board, making them contactless.

Chimney-type heat sink

The heat sink is a chimney type that has high cooling efficiency and a shape that minimizes inherent vibration.

Sound quality is the top priority

The structure is designed with sound quality as the top priority, with features such as a non-fixed top cover, feet directly below the power transformer to eliminate vibrations from the power transformer, and a non-fixed circuit board.

Power amplifier mode

In power amplifier mode, the microcomputer is powered off, and the selector and volume are bypassed, further improving the signal-to-noise ratio. In this mode, you can also select between XLR and RCA inputs.

4 types of usage available

You can choose from the following four ways to use it.

  • Stereo Integrated Amplifier
  • Bi-amplifier mono integrated amplifier
  • Stereo power amplifier
  • Bi-amplifier mono power amplifier
Tech Specs

Rated output 

100W ×2 (8ohm), 200W ×2 (4ohm), 400W (BTL MONO 8ohm)

Total harmonic distortion

0.03% (50W 8ohm)

Frequency characteristic

SPEAKER (8ohm 1W): 3Hz to 240kHz (±1.0dB)

Input sensitivity/impedance

LINE 1, 2, 3 (Balance): 700mV/16kohm
LINE 4, 5, 6: 700mV/8kohm

S/N ratio

110dB (IHF A network)

Power voltage

230V AC 50Hz

Power consumption

355W, 125W (during idling)

Maximum external dimensions

Main unit: 430(W) × 160(H) × 423(D)mm

Weight

20kg

Included accessories

Remote control, Spikes, Power cord

Customer Reviews

User Reviews

Warranty Information
warranty shield 3 Years Warranty

We care about your experience with HeyNow Hi-Fi, and we’re here to make the warranty process as smooth as possible.

Your warranty is handled directly by the Australian importer. By submitting this form, we’ll coordinate the process for you and keep you updated every step of the way. Important: Shipping fees are not included as part of your warranty coverage.

If your HeyNow Hi-Fi purchase isn’t working as it should, click here to lodge a warranty claim.

Should you have any questions, feel free to contact us https://www.heynowhifi.com.au//pages/contact

Why Choose Soulnote

Soulnote is a Japanese high-end audio manufacturer renowned for producing highly individual amplifiers and source components designed around speed, openness, and preserving the emotional energy within music. Founded by former Marantz Japan engineer Norinaga Nakazawa, Soulnote products deliberately challenge many conventional Hi-Fi engineering approaches in pursuit of a more immediate, dynamic, and musically alive presentation.

What makes Soulnote particularly distinctive is the company’s philosophy of minimising mechanical and electrical constraint throughout the signal path. Rather than excessively damping components or pursuing ultra-measured sterility, Soulnote designs focus heavily on energy flow, transient freedom, and preserving the natural movement and timing within recordings. The result is a sound that feels remarkably open, spacious, and emotionally engaging.

At HeyNow Hi-Fi, Soulnote products stand apart for their ability to combine extraordinary resolution and speed with a highly organic and immersive musical presentation. There is an effortlessness and vitality to the sound that can make many conventional electronics feel comparatively restrained or mechanically controlled.

Signature Design and Sound

Manufactured in Japan, Soulnote products are engineered around fully discrete analogue circuits, non-NFB (negative feedback) amplifier architectures, oversized linear power supplies, floating mechanical structures, and highly refined grounding implementations designed to minimise energy storage and preserve transient realism.

One of the defining aspects of Soulnote’s philosophy is the company’s rejection of excessive mechanical damping. Components within the chassis are often deliberately allowed to “float” mechanically rather than being rigidly constrained, based on the belief that excessive damping can suppress musical energy and natural dynamic expression. This gives Soulnote products a very distinct engineering identity within high-end audio.

The A-0, A-1, and A-2 integrated amplifiers showcase this philosophy beautifully. Despite their relatively compact and elegant appearance, these amplifiers deliver exceptional speed, current capability, and dynamic realism together with remarkable transparency and tonal purity. The presentation feels highly open and holographic, with impressive image separation and transient articulation while still retaining body and musical coherence.

The E-2 Version 2 phono preamplifier has become especially admired amongst analogue enthusiasts due to its extraordinary flexibility and refinement. One of its major strengths is the extensive cartridge equalisation and loading capability available within the design, allowing precise optimisation across a wide range of moving coil and moving magnet cartridges. This level of adjustability allows customers to extract significantly greater performance and tonal balance from their analogue systems while tailoring the interface more accurately to individual cartridge behaviour.

Sonically, Soulnote products are known for their speed, dimensionality, and remarkably free-flowing musical presentation. Instruments and vocals emerge with exceptional openness and low-level detail retrieval, while the soundstage feels expansive, layered, and highly immersive without becoming analytical or emotionally detached.

Soulnote Product Range

The Soulnote range available through HeyNow Hi-Fi includes integrated amplifiers, DACs, CD players, network transports, phono preamplifiers, and reference-level analogue electronics designed for listeners seeking maximum musical openness and dynamic realism.

Products including the A-0, A-1, A-2, and E-2 Version 2 showcase the company’s highly individual engineering philosophy and commitment to preserving musical energy and emotional communication throughout the playback chain.

At HeyNow Hi-Fi, Geoff and his experienced analogue and system setup team provide assistance with amplifier matching, cartridge integration, analogue optimisation, and complete system configuration to ensure Soulnote products perform at their full capability within each customer’s listening environment.

Explore the Soulnote range:

CD Players

DAC's

Streamers

Phono Pre-Amplifiers

Integrated Amplifiers

Power Amplifiers

Pre Amplifiers

Analogue Cables

Equipment Rack

Power Supplies

Explore Soulnote

WHY CHOOSE HEYNOW HI-FI?

At HeyNow Hi-Fi, it's not just about the gear - it's about how it all comes together. With over 30 years of experience, Geoff provides personalised, expert advice to help you build a system that suits your music, your space, and listening style.

Whether you're starting from scratch, refining your set up, or upgrading your gear, Geoff is always happy to have a chat. Call or book a private consultation directly with Geoff today.

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