Sound Performance Lab Gain Station 8 2383 - Manual (Page 26)

26 GainStation 8
In the case of the power supply, no expense was spared. After
all, the power supply is one of the primary factors in the audio
quality and overall sound of any device. Just like the best coffee
beans in the world will not produce a good cup of coffee with
poor water, the best circuits can‘t produce a great sound with
unreliable, inconsistent current.
In order to provide optimal current, the GainStation 8 was
outfitted with an external power supply. Properly installed,
transformer hum and interference should never be an issue and
the unit should deliver clean, clear audio.
The 185 VA transformer is generously proportioned to ensure
plenty of power in any situation and proper current for the
various circuits. Further interference rejection is provided by a
power-on relay, which requires only minimal current. The power
supply design keeps the GainStation‘s internal circuitry free
from AC power, which could negatively influence the sensitive
preamps.
Entirely new circuit designs were developed to process the
various direct currents. The +/- 30 V current, for example, utilizes
a discrete voltage regulator with barely measurable noise. High-
speed rectifier diodes and total capacities of 53,600 mF ensure
sufficient current to process even the most powerful impulses.
In addition, most currents are stabilized using 400 V/100 nF MKP
foil condensers to ensure plenty of current for fast transients.
48 V phantom power is also processed using discrete, low-noise
voltage regulators and fed directly to the microphone conduc-
tors through two resistors.
Last but not least, the +250 V anode current is regulated by a
voltage regulator to compensate for AC influences.
External power supply