OCTAVE MRE130 Vacuum Tube KT88 Pair Monoblocks Great Sound

Comes with instruction manual, and a power cable.

Operation has been confirmed.
The vacuum tubes used are on one side,
Electro-harmonix: KT88×4
Philips: JAN 5814A x 2
KEN-RAD: 6C5×1

Both have obtained bias reference values,
The print is faint and the base metal has deteriorated, but the getter is still intact.
The exterior has a slight feeling of use, and the metal part has a slight dullness, but
There are no noticeable scratches or stains.

Review : https://www.tonepublications.com/review/octave-mre-130-amplifiers/
Combo Jubile Preamp : https://www.dealhomeaudio.com/shop/octave-jubilee-the-reference-preamp-87b/
Others used Octave : https://www.dealhomeaudio.com/?s=octave