If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
-
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
-
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
-
Contact Us
Use this text to answer questions in as much detail as possible for your customers.
無帰還 · No Feedback
Balanced from the start.
No feedback, ever.
The Soulnote A1 is the original, most accessible way into Soulnote's completely non-NFB world.
Soulnote A1 Integrated Amplifier
Popular upgrades
Pairs well with
Hand-built in Japan. Every part chosen by ear.
Soulnote A1 Integrated Amplifier
無 Nothing in the way
Everyone adds.
Soulnote subtracts.
The best producers know the secret: the art is what you leave out. Soulnote engineers the same way — every stage a conventional design adds to the signal path is a chance to blur the original waveform, so Soulnote removes them, one by one, and tunes what remains by ear.
Between input and output: 3 extra stages, each with a fingerprint. Between input and output: almost nothing.
Every stage does a job — and leaves a fingerprint on the waveform as it passes through.
Fewer hands on the signal. What remains was chosen by listening — part by part.
Designed by subtraction
Less circuit.
More music.
into 8 ohms (120 W into 4 ohms) — full Soulnote drive from the entry point.
ground-plane star wiring and local non-NFB regulators keep the loop out entirely.
switches precision resistors instead of a pot, for balance and clarity at any volume.
Technical specifications
| Type | Integrated amplifier, fully balanced, discrete non-NFB |
| Maximum output | 80 W × 2 (8 ohms); 120 W × 2 (4 ohms) |
| THD | 0.08% (30 W, 8 ohms) |
| Volume control | Relay-switching balanced attenuator |
| Grounding | Direct mechanical grounding via spikes; ground-plane star wiring |
| Chassis | Symmetrical resonance-controlled, heavyweight aluminium front, metallic insulators |
How does the A1 differ from the A-1 ver.2?
What does the relay attenuator do for the sound?
Where does the vibration go?
About the Soulnote A1 Integrated Amplifier
The Non-NFB Gateway: Soulnote A1
The Soulnote A1 is the most accessible way into Soulnote's uncompromising, completely non-NFB world — a fully balanced, discrete integrated amplifier from the company founded by ex-Marantz engineer Norinaga Nakazawa and voiced "100% based on the actual sense of hearing." Every aspect has been meticulously refined for the vivid, fast, expansive sound that has made Soulnote a cult name: ground-plane star wiring, centralised local non-NFB regulators, optimised coupling routes and carefully tuned drive currents all work together to unlock genuine musical life.
A Volume Control Like No Other
Rather than a conventional rotary or electronic volume control, the A1 uses a newly developed relay-switching balanced attenuator. The payoff is dramatically increased clarity, a soundstage that emerges in three dimensions, and vastly improved quality at low volumes with no fear of channel imbalance. It's the kind of engineering usually reserved for far dearer components.
Built to Vibrate — In All the Right Ways
Direct mechanical grounding sends harmful vibration straight out through spikes coupled to the transformer's centre of gravity, without disturbing the housing. A symmetrical, resonance-controlled cabinet — with a heavyweight aluminium front panel and metallic insulators as standard — balances rigidity against resonance to deliver that expansive, uncontained Soulnote sound. It delivers 80 watts per channel into 8 ohms (120 W into 4 ohms) with the current to back it up.
Why You'll Love the Soulnote A1
- Completely non-NFB, fully balanced — the entry point to the Soulnote sound
- 80 W into 8 ohms (120 W into 4 ohms) — real power with real current
- Relay-switching balanced attenuator — 3D imaging and superb low-volume clarity
- Ground-plane star wiring — refined regulators and drive currents for vivid speed
- Direct mechanical grounding — spikes coupled to the transformer's centre of gravity
- Resonance-controlled housing — heavyweight aluminium front, metallic insulators
- Hand-built in Japan — Premium Silver or Premium Black
Frequently Asked Questions
What makes the A1 sound different from conventional amplifiers?
It uses no global negative feedback (non-NFB) and a relay-switching balanced attenuator, prioritising immediacy, three-dimensional imaging and low-level clarity over textbook measurements — the signature Soulnote presentation, tuned by ear.
How much power does the A1 have?
80 watts per channel into 8 ohms, rising to 120 watts into 4 ohms, with the current delivery to control most loudspeakers.
Where does it sit in the Soulnote range?
The A1 is Soulnote's most affordable full-size integrated, sharing the core non-NFB philosophy of the pricier A-2 and flagship A-3.
Soulnote A1 Technical Specifications
| Type | Integrated amplifier, fully balanced, discrete non-NFB |
| Maximum output | 80 W × 2 (8 ohms); 120 W × 2 (4 ohms) |
| THD | 0.08% (30 W, 8 ohms) |
| Volume control | Relay-switching balanced attenuator |
| Grounding | Direct mechanical grounding via spikes; ground-plane star wiring |
| Chassis | Symmetrical resonance-controlled, heavyweight aluminium front, metallic insulators |
| Finishes | Premium Silver or Premium Black |
| Made in | Japan — Soulnote |