Single Ended

Part selection is optimised to realise the most neutral and realistic sonic reproduction.

Some of the superior quality components utilised in the OTO SE include: –

Aluminium foil, paper in oil capacitors, used in the most critical areas. Dual power supplies and transformers, one for the output stage and one for the remaining circuitry. Custom designed output transformers, manufactured by Audio Note (UK). These output transformers – one of the most critical areas of valve amplifier design – allow the OTO SE to produce impressively extended and controlled bass.​

Some of the superior quality components utilised in the OTO SE Signature include: –

Audio Note (UK) Copper foil capacitors used in the most critical areas. Audio Note (UK) Tantalum resistors used in the most critical areas. Custom designed IHiB output transformers, manufactured by Audio Note (UK). These output transformers – one of the most critical areas of valve amplifier design – allow the OTO SE Signature to produce impressively extended and controlled bass.

The OTO SE fulfils all Audio Note (UK) Level 2 criteria: -​

Pure Class A Single Ended Pentode operation

Materials and component quality

Technical Specifications

INPUT IMPEDANCE 100K Ohm, Line Level

                                        47K Ohm, Phono input                                    

INPUT SENSITIVITY

                                          220mV (Push Pull) / 300mV (Single Ended) Line Level

                                          2mV(Push Pull) / 3mV (Single Ended) Phono input​

MAXIMUM OUTPUT 9 Watts (Push Pull) / 10 Watts (Single Ended)  RMS per channel into 4 or 8 Ohm loads

CHANNEL BALANCE +/- 0.3dB

VALVE COMPLEMENT

Push Pull –

1 x 5670

2 x 6UA6

4 x 6005

1 x ECC83 (Phono models only)

1 x 6DJ8 (Phono models only)

Single Ended –

1 x ECC82

2 x ECC83

4 x EL84

1 x ECC83 (Phono models only)

1 x 6DJ8 (Phono models only)                                               

UNIT WEIGHT 17 kg

UNIT DIMENSIONS 140mm (h) x 440mm (w) x 410mm (d)

MAINS INPUT AC 100-120V / 220-240V  50/60Hz

MAX. POWER CONSUMPTION 100W