Audio Note ONGAKU

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The ONGAKU has rightly earned a place in history; its name is synonymous with the finest possible audio reproduction, and for once the reality is equal to the Legend!

It is a Pure Class A Singled Ended valve amplifier that uses the highly regarded 211 / VT-4C triode valve, producing a level of performance that is radically superior to any other current designs.

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Please contact us for pricing information.


The ONGAKU has rightly earned a place in history; its name is synonymous with the finest possible audio reproduction, and for once the reality is equal to the Legend!

It is a Pure Class A Singled Ended valve amplifier that uses the highly regarded 211 / VT-4C triode valve, producing a level of performance that is radically superior to any other current designs.

Please contact us for pricing information.


The ONGAKU has rightly earned a place in history; its name is synonymous with the finest possible audio reproduction, and for once the reality is equal to the Legend!

It is a Pure Class A Singled Ended valve amplifier that uses the highly regarded 211 / VT-4C triode valve, producing a level of performance that is radically superior to any other current designs.

Only the finest possible components have been employed: -

Audio Note (UK) silver wire has been used exclusively for all internal wiring, including all transformers and power supply connections.

Audio Note 2 watt Tantalum resistors have been used throughout.

All capacitors are either Black Gate Electrolytic or Audio Note (UK) silver foil.

All transformers are our own in-house custom designed and manufactured devices; driver and output transformers are fully silver wired AN-Perma 50 nickel C-core and the mains transformer is a fully silver wired HiB double C core.

No integrated amplifier has ever produced the levels of musical purity delivered by the ONGAKU… It is without doubt the finest possible integrated amplifier available today.

It has been specifically engineered for sonic performance rather than technical specification, and fulfils all Audio Note (UK) Level 5 criteria: -

  • Pure Class A operation

  • Zero Negative Feedback

  • Single Ended Output Stage

  • Valve Rectification

  • Directly Heated Triode operation

  • Materials and component quality

    • Input Impedance: 100K Ohm, line level

    • Input Sensitivity: 450mV for full output

    • Maximum Output: 20 Watts (approx.) per channel into 4 or 8 Ohm loads

    • Channel Balance: +/- 0.3dB

    • Valve Complement: 2 x 5R4WGB — 2 x 211 / GE VT-4C — 1 x CV4068 — 1 x 6463

    • ​Unit Weight: 48kg

    • Unit Dimensions: 305mm (h) x 305mm (w) x 640mm (d)

    • Mains Input: AC 100-120V / 220-240V  50/60Hz

    • Maximum Power Consumption: 200W

    Due to Audio Note (UK)'s ongoing research and development program, specifications are subject to change without notice.