Capacitance:
Various values of capacitors can be connected in parallel to the input via switches S101 and
S201. With these switches in the OFF position, there is no capacitive loading to the cartridge.
The capacitance choices include:
Switch Position
Capacitor Value
5
100pF
6
470pF
7
1000pF
8
User-Defined
Any possible parallel combination of these values is also allowable.
Input Mode (Direct or Step-Up) Switch
The VK-P10SE comes equipped with internal step-up transformers, which allow the user to
achieve the best possible signal-to-noise ratio and dynamic range in any system configuration,
including systems with very low output moving coil cartridges (down to .1mV or less).
By changing the position of the S102 and S202 switches, user may choose between Direct and
Step-Up input modes. In Direct mode the cartridge is connected directly to the vacuum tube
amplification stage. In the Step-Up mode the cartridge signal is routed through the
step-up transformer, in order to boost it before it reaches the amplification stage. This allows
for an additional gain of 20dB.
It is recommended that for phono cartridges with the output of more than .25mV, the Direct
mode be used. For sources with lower output voltage, the user should experiment in order to
find the combination, providing the best performance. Using the Step-Up transformers will
usually provide a lower noise floor (see the Specifications chapter).
Gain Switch
By moving the switch S2 from High to Low position, the amplifier’s gain is reduced by about
15dB. While the High gain position provides the most universal setting, it may be desired to
reduce the overall system gain when using some high output phono cartridges.
Summary of Contents for VK-P10SE
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