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