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Herron Audio Vacuum Tube Stereo Preamplifier
Herron Audio Vacuum Tube Stereo Preamplifier
Table of Contents
3
Introduction
4
6
7
15 Technical Specifications
©2003 Herron Audio
Division of Herron Engineering, Inc.
12685 Dorsett Road
# 138
St. Louis, MO 63043
314.434.5416
314.434.6629 fax
Owner's Manual
Owner's Manual
Welcome!
Welcome!
Thank you for your investment in
the Herron Audio Vacuum Tube
Stereo Preamplifier, a masterpiece
of high-precision audio playback
equipment. It is designed to be the
finest product of its type available.
The care in engineering and
manufacturing of this product
anticipates a lifetime of musical
enjoyment.
The original Herron VTSP was
created to provide a research plat-
form for the development of other
Herron Audio components. We
recognized the need for a trans-
parent line stage preamplifier that
provided control of the signal
source, level, and channel bal-
ance. Existing available
equipment, regardless of price,
failed to meet these needs due to
distortion and coloration intro-
duced into the signal and
exhibited wide variations in unit-
to-unit quality.
The VTSP-1A/166 employs a
basic gain stage architecture simi-
lar to the highly praised VTPH-1
phono preamplifier. Years of
research into circuit design and
component performance were
applied to the development of the
Please read the Owner's Manual completely BEFORE operating the unit.
VTSP-1A/166, and new implemen-
tations of components led to a
breakthrough in performance
while maintaining conservative
operation. The unconventional
design of the VTSP-1A/166 has
resulted in a level of performance
unequaled in the audio industry.
Not only did this preamplifier
meet our design objectives for a
research platform, it also provides
the most musical and non-intru-
sive control of any unit of its type.
As with all Herron Audio prod-
ucts, the VTSP-1A/166 is
engineered to be reliable and user
friendly to overcome the fears
many have expressed concerning
vacuum tube components.
Manufacturing of the unit is
performed under the tightest of
quality controls.
Its limited production permits
hand matching of components to
the most exacting standards in the
industry. Tubes are burned in,
bench tested, and matched to
extremely tight tolerances both as
sets within a given unit and to the
original design to ensure unprece-
dented performance and lack of
unit-to-unit variation.
one
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