The Audio Note OTO Line SE Signature is a Pure Class A single-ended tube integrated amplifier with a power output of 10 watts per channel.

The Signature version utilise superior parts quality that include:

* Audio Note copper foil capacitors used in the signal path
* Audio Note tantalum resistors used in the most critical parts
* IHiB copper C-Core output transformers, custom designed and manufactured in-house by AUdio Note (UK).

In excellent condition, with original box.