INTRODUCTION
N
u-Vista 300 Power Amp "breaks the
rules" to offer ground-breaking per-
formance
T
he Nu-Vista 300 power amp is the heir
apparent to the great tradition of British
electrical and mechanical engineering
excellence. It is also proof positive that
those who understand the rules of amplifier
design best, can break them with the best
results.
D
esigned to complement the Nu-Vista
preamplifier, which notched up new
preamp standards, the Nu-Vista 300 power
amp sets new standards for power ampli-
fiers. This is achieved in several ways:
through the use of a sophisticated, hybrid
nuvistor circuit, which can produce huge
peak currents and massive power levels. By
using a unique choke-regulated power sup-
ply. And by flying in the face of convention
in the physical layout of such a massive
power amp.
T
he results speak for themselves. The
Nu-Vista 300 top end is extended and
beautifully clear, the midrange is pure and
as transparent as the finest optical crystal
and the bottom end extends down virtually
to infinity. Resolution and definition have
integrity to electron -microscope-level
detail. And for all practical purposes, the
Nu-Vista 300 power amp has no dynamic
range limits.
T
he Nu-Vista 300 is a big power amp
with unlimited headroom, massive
power, high current, low distortion, high
stability margins and obsessive attention to
magnetic flux. This is not an amplifier for
the timid.
D
esign objectives of the Nu-Vista 300
power amp
1. Sound quality
2. Low distortion with low feedback
3. High power and high current
4. Stability margins
5. Consistency
6. Build quality and aesthetics
1) Sound quality
T
he Nu-Vista 300 power amp sets new
standards for audio electronics because
it is able to transfer the purity and clarity of
the Nu-Vista preamp to the loudspeakers.
To achieve this, the Nu-Vista 300 has very
wide bandwidth coupled with low distortion
and a huge dynamic range.
D
ue, in part, to its very high input imped-
ance and sophisticated circuit, the top
end of the Nu-Vista 300 is remarkably lucid
and extended. There is no grain, no distor-
tion, no harshness of any sort - and no
power limit. The Nu-Vista 300 simply
delivers to the loudspeakers an amplified
version of exactly what is fed into it.
T
he midrange is simply pure, with no
colouration and no grain. The effect is
like looking through the purest form of opti-
cal crystal. You know it's there, but it's vir-
tually invisible. Similarly, with the Nu-
Vista 300, there are no intrusions.
T
he bottom end is profoundly extended.
It is also extremely fast, with not a hint
of overhang. It has speed, slam and attack.
It is all but impossible to clip or overdrive
the Nu-Vista 300 in the bottom end. The
real question is: can your loudspeakers han-
dle an amplifier which, in practice, has no
dynamic limits.
Nu-VISTA 300 Power Amplifier
Instructions for Use. Page 4 of 12
