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Walden High-End Audio Audio Note Empress Monoblock Power Amplifier

Audio Note Empress Monoblock Power Amplifier

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The Audio Note (UK) Empress Mono Power Amplifiers are Pure Class A Parallel Singled Ended valve amplifiers that use a pair of the highly regarded 2A3 triode valves per channel, producing a level of performance that is radically superior to the vast majority of current designs.

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Please contact us for pricing information.


The Audio Note (UK) Empress Mono Power Amplifiers are Pure Class A Parallel Singled Ended valve amplifiers that use a pair of the highly regarded 2A3 triode valves per channel, producing a level of performance that is radically superior to the vast majority of current designs.

Please contact us for pricing information.


The Audio Note (UK) Empress Mono Power Amplifiers are Pure Class A Parallel Singled Ended valve amplifiers that use a pair of the highly regarded 2A3 triode valves per channel, producing a level of performance that is radically superior to the vast majority of current designs.

They have been specifically engineered for sonic performance rather than technical specification, and fulfil all Audio Note (UK) Level 3 criteria: -

  •  Pure Class A operation

  • Zero Negative Feedback

  • Single Ended Output Stage

  • Valve Rectification

  • Directly Heated Triode operation

  • Materials and component quality

​The Silver version builds upon the already superb performance of the standard EMPRESS, and features the following additions: -

  • Audio Note 1 Watt Tantalum film resistors

  • IHiB C-core output transformers

​The Silver Signature version builds upon the already superb performance of the standard EMPRESS, and features the following additions: -

  • Audio Note 2 Watt Tantalum film resistors

  • SHiB C-core output transformers

    • Input Impedance: 100K Ohm, line level

    • Input Sensitivity: 115mV for full output

    • Maximum Output: 8 Watts RMS  per channel into 4 or 8 Ohm loads

    • Channel Balance: +/- 0.3dB

    • Valve Complement: 2 x 5R4GY (1 per chassis) — 4 x 2A3 (2 per chassis) — 2 x 6SN7 (1 per chassis)

    • ​​Unit Weight: 20kg (per amplifier)

    • Unit Dimensions: 195mm (h) x 205mm (w) x 500mm (d) (per amplifier)

    • 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.