Audio Note P1
As with the recently announced 35th Anniversary version of our classic OTO SE range, the P1 SE models (which share the same circuit design as the OTO SE) have also received the same attention from Andy Grove. The improved output transformers, choke power supply, and in-house mains TX make a phenomenal difference to an already exceptional amplifier.
You can read Andy's discussion of the improvements to these models here,
The Audio Note (UK) P1 SE Stereo Power Amplifier is a Pure Class A Parallel Single Ended valve design, producing an outstanding level of performance and value.
The P1 SE has been specifically engineered for sonic performance rather than technical specification, and fulfils all Audio Note (UK) Level 2 criteria.
It is a Pure Class A amplifier that uses a pair of the highly regarded EL84 valves per channel in Parallel Single Ended operation, which preserves the entire musical waveform as one "whole," producing a level of performance that is radically superior to the majority of current designs.
Part selection is optimised to realise the most neutral and realistic sonic reproduction.
Some of the superior quality components employed in the P1 SE include: –
Audio Note (UK) custom Standard and Seiryu electrolytic capacitors used in critical areas.
Audio Note (UK) Tantalum resistors used in critical areas.
Audio Note (UK) custom in-house designed and wound BA C Core mains transformer
Audio Note (UK) custom in-house designed and wound M6 Lamination output transformers.
Some of the superior quality components utilised in the P1 SE Signature include: –
Audio Note (UK) Standard and Seiryu electrolytic capacitors used in critical areas.
Audio Note (UK) Tantalum and Niobium resistors used in critical areas.
Audio Note (UK) custom in-house designed and wound BA C Core mains transformer
Audio Note (UK) custom in-house designed and wound I HiB core output transformers.
Specifications
| INPUT IMPEDANCE | 100 KOhm, line level |
|---|---|
| INPUT SENSITIVITY | 220mV for full output |
| MAXIMUM OUTPUT | 8 Watts (SE) RMS per channel into 4 or 8 Ohm loads |
| CHANNEL BALANCE | +/- 0.3dB |
| VALVE COMPLEMENT | 2 x ECC83 / 4 x EL84 |
| UNIT WEIGHT | 15 kg |
| UNIT DIMENSIONS | 140mm (h) x 295mm (w) x 450mm (d) |
| MAINS INPUT | AC 100-120V / 220-240V 50/60Hz |
| MAX. POWER CONSUMPTION | 125 Watts |
| NOTE | Due to Audio Note (UK)'s ongoing research and development program, specifications are subject to change without notice. |
Models
The P1 is available as:
| P1 PP | push-pull, EL84 |
|---|---|
| P1 SE Standard | parallel single-ended, EL84 |
| P1 SE Signature |
Price on request — contact us for a quotation, or book a listening appointment in our atelier.


