Description

Audion Silver Night Anniversary DUO 300B/2A3
switchable hard wired Integrated 5 channel stereo is our intermediate
level power amplifier, using the well known 300B tubes or  switchable to
2A3. These amplifiers are hand built and point to point hard wired
(Air Wired©) avoiding the use of Chinese components where possible.
This triode based stereo amp uses no (zero) feedback in the design. The
chassis is black powder coated aluminum as is the transformer cover.
The top plate and badge are mirror finished stainless steel.

The Silver Night range of amplifiers are the best known of the
Audion products, and the ones that have won most awards, notably amp of
the year in Japan 2010. The SN 300B hard wired was the amp originally
reviewed by Sam Tellig that put Audion’s name onto the map.

Amplifier matching

This Silver Night Anniversary DUO is different from other
amps in that the user can tube roll between any 300B, any 2A3 or any
type 45 tube, obviously more careful choice of speaker is needed.
Lloudspeakers of 89db or better efficiency for 300B mode 95 db or
better for 2A3 and 98db or greater for type 45. Ideally matched with
our range of Electron  cables. The amps deliver 7 watts into 8 ohms
from a 300B, 3.5 watts with a 2A3 and 2 watts with a Type 45. Switching
is done at the rear by swapping fuse positions and the heater voltages
are self sensing within the amp. Tube rolling is easy as the amp is
auto biassed Upgrade options are available for this model, see upgrade
options at end.Also available in standard stereo configuration

Quality both inside and out

Having a volume control on the front and 5 stereo inputs on
the rear means that a pre-amplifier is not necessary with this unit,
but however we would recommend the use of one. These amps are all auto
biased. The DUO amp comes with JJ300B tubes and also Electro Harmonix
2A3 tubes.

The Silver Night DUO Integrated Stereo reproduce subtleties
and nuances in music that can not be found in other amps of this price.
The 300B gives a good overall sonic performance from a well know tube,
whilst the 2A3 delivers less power and is suited for loudspeakers
really over 97db efficiency, they can be used with speakers of less
efficiency but will "run out of steam" quicker. The DUO is a good amp
to experiment with different tubes and create different nuances and
subtleties of music reproduction. The DUO’s transparent electronics
allow the user to see the sonic difference between tubes. This amp is
wired for 8 ohms, however they have a 4 ohm tapping that can be changed
internally.

The Silver Night DUO is built with components sourced from Europe
and the US. Where possible we avoid the use of any Chinese component.
Our output transformers are wound in-house to our exacting standards
and many of the components are either made by us or specifically for
us. We use JJ 300B, also Electro Harmonix 2A3 Russian New old stock
6H23N as a driver and input tubes.