Millennia STT-1 Quick Start Guide User Manual
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23. De-Esser Select Rotary Switch — provides selective
filtering of particularly "sibilant" frequencies, such as found on
overly breathy singers and so forth. Compressor/limiter
"dynamics" switch (#24) must be active to achieve de-essing
function.
The de-esser and broadband compressor/limiter
cannot be used simultaneously.
When any de-essing frequency is selected, the meter
Gain Reduction function is disabled.
The de-esser in the Origin is intended for modest de-
essing duties. For more aggressive sibilance, a
dedicated de-essing unit with greater flexibility is
suggested.
24. Dynamics In/Out Switch — places an opto-
compressor/limiter into the signal path. When LED is on, opto-
electronic gain reduction elements are activated. When LED is off,
gain reduction is not in circuit.
25. Mute Select Switch — mutes all main outputs, balanced and
unbalanced. When LED is on, audio signal is muted at the main
outputs. Does not affect Direct Output from the front end
amplifiers. When LED is off, muting is not active.
25. VU Meter Function Select Switch — determines the VU
meter function. When LED is on, VU meter indicates the amount
of dynamics gain reduction. When LED is off, VU meter indicates
the actual output level of the balanced main outputs. A meter
reading of 0 VU is equivalent to a balanced output of +4 dBu.
NOTE: Unbalanced main output is 6 dB lower output than shown
on VU meter.
Metering is disabled when de-esser is enabled.
27. Master Level Control "OUTPUT MASTER" — Fully CCW is
off. Fully CW offers an additional 10 dB of gain relative to the
front-end amplifier circuits. Unity output level is achieved when
this control is approximately 2:00 o’clock. At 10:00 o’clock,
output level is attenuated approximately -16 dB.
28. VU Meter Adjustment — multi-turn trimmer potentiometer
which adjusts the VU meter zero point when meter is set to Gain
Reduction. Use insulated "wand" tool designed for trim pot
adjustment. Allow ample time (1/2 hour recommended) for the
STT-1 Origin circuits and chassis to “warm up” and reach a stable
operating temperature before attempting to set the GR zero point
of VU meter.
29. VU Meter — True analog-level meter providing indication of
output level or gain reduction. Meter is backlit. Meter backlighting
also serves as operational “pilot” light.
30. Power Switch — turns power on and off.
PUSH
PUSH
115
ORIGIN STT-1
STT-1 Rear Panel
1. Microphone Input — XLR input jack for use with all standard
balanced microphones, both phantom and non-phantom powered.
Provides +48 Volts DC Phantom powering via front panel switch.
Pin 2 is positive polarity. Pin 3 is negative polarity
2. Line Level Input — XLR connector for use with balanced line
level audio signals. A line level signal is defined here as nominal
+4 dBu operating level. Pin 1 is ground. Pin 2 is positive polarity.
Pin 3 is negative polarity. A 1/4" TRS phone jack is wired in
parallel with the XLR (Tip=pin 2, Ring=pin 3, Sleeve=pin 1).
3. Front End Direct Output — XLR connector providing
balanced, line level output directly from the front-end amplifiers
(MIC, LINE, DI). This output is configured before the EQ,
Compressor, De-esser, and main outputs. Great for tracking an
unprocessed version.
4. Main Output #1 — XLR connector providing balanced, line
level output from all stages of the STT-1. Can be used
simultaneously with all other outputs. Pin 1 is ground. Pin 2 is
positive polarity. Pin 3 is negative polarity.
5. Main Output #2 — XLR connector providing unbalanced, line
level output from all stages of the STT-1. Can be used
simultaneously with all other outputs.
6. Main Output #3 — 1/4" female phone connector providing
unbalanced, line level output from all stages of the STT-1. Can be
used simultaneously with all other outputs. Tip is signal positive
polarity, Sleeve is ground. This output is paralleled with Output
#2 (above).
7. Dynamics Link — RCA-style phono jack providing a
connection to the dynamics side chain circuit. Use to link dual
STT-1 units for stereo operation. Any conventional RCA phono
cable should work appropriately.
4
5
3
2
1
8
9
7
6
10
8. Earth/Audio Ground Jumper — barrier terminal which ties
earth ground to audio ground. If ground "hum" loops are
experienced when using the STT-1, removing this jumper may
help. Using this jumper to lift ground, the integrity of the
chassis/earth ground connection is never compromised. Do not
defeat the earth grounding pin on the AC plug.
9. AC Voltage Mains Selection — The fuse block contains two
fuses — one fuse is in series with the hot power line while the
other fuse is in series with the neutral power line. Both fuses must
be installed.
To change the mains voltage selection, remove IEC power
connector and assure that the STT-1 is not connected to mains
power. With a non-conductive tool, gently pry the fuse block away
from the power entry module. Slide out the internal PC Board,
turn it over, and reinsert the PCB so that the desired AC mains
voltage appears in the viewing window. Double check that the
fuses installed correspond to the AC mains voltage range which
appears in the viewing window. Gently push the fuse block back
until flush and snug.
Fuses: For 100-120 VAC mains, use two 5 x 20 mm, 1A, slow
blow, 250 V, Littelfuse 218 or equiv. For 200-240 VAC mains, use
two 5 x 20 mm, 1A, slow blow, 250 V, Littelfuse 218 or equiv.
10. Power Entry — IEC Power Receptacle for use with removable
cords. Use only the power cord provided. (Export units’ cords are
provided by the distributor.)
The complete STT-1 manual is available on-line:
Millennia Media STT‐1 Quick Start Guide
022808
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