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icon Audio
Instruction Manual Covering:
Stereo 20 SE
Contents
1 Introduction & Final Inspection
2 Quick Set Up Guide
3 Connecting inputs & outputs
4 Getting the best out of your
amplifier
5 Trouble Shooting
6 Specifications
7 Valve Replacement
8 Guarantee
9 Packing Instructions
1 Introduction
Thank you for purchasing the
Stereo
20SE
. A great deal of care has been taken
in the design, selection of components and
production of this amplifier. We are sure that you
will hear the difference.
In order to get the best out of your amplifier,
please read the enclosed notes. Even if you are
experienced with hi fi
Please read
the ‘quick set
up guide’.
Should you be uncertain about
anything to do with your amplifier please contact
us for advice.
Hi fi reproduction is a long chain of events that
includes the recording, editing, mixing etc, before
being transferred to a medium such as LP, CD, or
FM, before being played through your own source
unit, the amplifier and finally loudspeakers.
Your room acoustics will also affect the sound
before it finally reaches your ear. Whilst the
amplifier is arguably the most important part of a
system, it is important to remember that the
weakest link will always affect the final results
when making judgements. And not all recordings
are ‘equal’! Therefore an amplifier which faithfully
reproduces the input signal will also reproduce
imperfections in the tonal balance and the
recording itself. Therefore setting up and
judgements should be made with a
‘clean’ well
balanced recording.
The
Stereo 20SE
is a single ended
Ultralinear stereo power amp. Using only one
output tube per channel. This makes for a very
simple design without the complexities of push-
pull operation. The biggest problem with single
ended designs is their low power and often poor
bass performance.
Developed over several years our primary goals
were: 1, To have enough power to drive modern
speakers to a good level. 2, Warm, yet detailed
sound without “soggy bass”. 3, Not requiring a
large
expensive
power
supply.
To
avoid
expensive tube replacements. 4, Relatively simple
all triode drive stage for purest sound. 5, To use a
valve rectifier for extra smoothness. 6, Reliability
and simplicity of operation.
The
excellent
GEC
KT88
fits
all
these
requirements with ease.
The pre-amp i
s a high quality ‘Passive’ circuit
using silver audio cable and an ALPS
‘blue’
volume control. It is sensitive enough to be used
with all modern source equipment having an
output of 300mv or greater. Its simplicity coupled
with point to point hand wiring without the use of
printed circuit boards results in an open euphoric
sound that is wonderfully detailed and warm
sounding.
IMPORTANT!
THIS MANUAL CONTAINS
ESSENTIAL HEALTH &
SAFETY INFORMATION FOR
YOU AND YOUR AMPLIFIER.
PLEASE READ & KEEP SAFE
AND REFER TO IF NECESSARY
