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Herron Audio Vacuum Tube Stereo Preamplifier
Herron Audio Vacuum Tube Stereo Preamplifier
Features
Features
Operating the Herron VTSP-1A/166
Preamplifier is easy and straightfor-
ward. The unit has been designed to
be exquisitely simple and user
friendly, with its operational readi-
ness easily monitored.
A new and special feature of the
VTSP-1A/166 is the perfect tracking
volume control. This innovative
use of servo control provides
extremely accurate tracking
between separate electronic
stepped attenuators for each chan-
nel. This technology provides
precise channel-to-channel balance
across the full volume range while
retaining the convenience of a con-
ventional volume knob. This
approach does not use a conven-
tional potentiometer as a volume
control thus eliminating a major
source of signal distortion in many
of the competing units. Our servo
implementation also has the ability
to handle a much higher signal
level than many competing
designs. Where some other units
tend to limit the signal during
dynamic peaks at the input, the
VTSP-1A/166's perfect tracking sys-
tem, with its substantial headroom,
can easily handle large voltage
two
swings from even the most
advanced phono reproduction
equipment, high quality digital
sources, and advanced signal
processors in home theater
systems.
Source input selection in the
VTSP-1A/166 incorporates gold con-
tact sealed relays located at the input
connectors keeping the signal path
length to an absolute minimum.
This innovative configuration elimi-
nates the distortion-generating
wipers of conventional selectors and
long runs of wire from the rear panel
to the switch. An additional benefit
is that in using sealed units, the con-
tacts are not prone to corrosion, dirt,
or the same kind of wear as conven-
tional selector switches.
Relays located at inputs
Owner's Manual
The power supplies of all Herron
Audio products reflect the engineer-
ing innovation that allows the
Herron VTSP-1A/166 Preamplifier to
provide the highest musical satisfac-
tion without the artifacts produced
by most other tube-based compo-
nents. This power supply provides a
rigid and unwavering voltage source
to the tubes, producing remarkable
resolution of musical events in time
and sound stage.
The circuit board layout reflects
consideration of all of its electrical
properties in order to achieve out-
standing audio performance with
greater consistency than hand
wiring. Compromise was not an
option. The best possible perfor-
Please read the Owner's Manual completely BEFORE operating the unit.
mance was the only consideration.
The unique design of the Herron
VTSP-1A/166 Preamplifier, along
with its conservative operating para-
meters, means that owners can
expect the industry's highest level of
performance to be maintained over
the extended life of the unit.
All members of Herron Audio
staff are audiophiles who regard the
accurate reproduction of music as
one of the highest applications of
the engineering arts. We at Herron
Audio believe in the pursuit of audio
perfection. We hope you enjoy the
fruits of our efforts. If you have any
comments, suggestions, or ques-
tions, please contact us at
314-434-5416.
three
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