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STT-1

QUICK START

READ THIS!!   The STT-1 operates with lethal operating voltages 

— the voltage inside the STT-1 can kill you. Never, under any cir-
cumstances, remove the top cover. Refer to a qualified electronics 

technician any and all servicing and other operations which require 
the top cover to be removed.

Congratulations on your purchase of the Millennia Media STT-1 

Origin

 tracking and post sys-

tem. The STT-1 is the culmination of meticulous listening tests on innumerable circuit, topol-
ogy, and packaging designs over many years of product design and development. Your STT-1 

is a finely tuned instrument intended for critical professional applications — we feel it offers 

the world's most sonically versatile "all-in-one channel strip" audio signal path, with the added 
benefits of selectable transformer-coupling and vacuum tubes when "euphonic enhancement" is 

desired. With the emergence of 24+ bit digital audio, recording engineers are faced with a new 
requirement for undistorted dynamic range. The STT-1 meets this challenge exceptionally well.

Before connecting power to the STT-1, assure that the rear panel voltage selection fuse block 
switch is set correctly. In the USA, the STT-1 is shipped with the voltage selection block set 
to 100-120 VAC. If you change the voltage selection block to 200-240 VAC usage, be sure to 
change both fuses to the correct types. See "Rear Panel" instructions for proper fuse require-
ments.

The STT-1 enclosure measures approximately 19" wide x 3.5" high x 15.5" deep and is designed 
for mounting into a standard 2U, 19" equipment rack. If the STT-1 is mounted in a road case or 
other rack which is prone to strong vibration or shock, it is highly recommended that the rear 
of the STT-1 be supported or otherwise reinforced to withstand such conditions. The STT-1 

contains a significant number of high voltage vacuum tubes and discrete transistors, all running 
in pure Class-A mode. As such, the STT-1 Origin runs warm and should be mounted with at 
least one rack screw space open above and below the unit. The rear panel heat sink should also 
be given adequate exposure to unrestricted air movement.

The STT-1 is designed on a common ground topology. For high quality operation, and for your 
own safety and the safety of others, 

do not defeat

 the purpose of the earth grounding pin. 

STT-1 FRONT-END PROTECTION

Millennia Media enjoys a reputation for what many top engineers and producers call the 
world's most musically accurate and dynamically consistent microphone preamplifier — the 
HV-3. But this unique design is not achieved without certain operating criteria. Back-to-back 

Zener diodes protect the super-matched discrete bipolar input transistors against high transient 
energy spikes common when inserting and extracting XLR connectors. To maintain top perfor-
mance and protect the STT-1's sensitive HV-3 front-end, it is advised that you do not insert or 
extract XLR connectors with phantom power on. Get in the habit of turning phantom power 
off and waiting about thirty seconds for the phantom power to ramp down before inserting or 

removing a microphone. This is good advice for protecting a microphone, as well.

Summary of Contents for STT-1

Page 1: ...STT 1 Dedicated to the lives memory and families of Chris Camacho and Gabe Weiner two young men who shared a passion for great audio and who left us much too soon Gabe 1970 1997 Chris 1959 1999...

Page 2: ...ned in this manual consists of information that is property of Millennia Media Inc and is intended solely for use by the purchasers of the equipment described in this manual Millennia Media Inc expres...

Page 3: ...cts placed on it Pay particular attention to plugs receptacles and the point where the AC power cord exits the STT 1 4 GROUNDING For your safety it is extremely important that the grounding pin of the...

Page 4: ...e x 3 5 high x 15 5 deep and is designed for mounting into a standard 2U 19 equipment rack If the STT 1 is mounted in a road case or other rack which is prone to strong vibration or shock it is highly...

Page 5: ...bove three inputs via the SOURCE rotary switch The above inputs can not be combined or mixed internally Polarity of any input can be flipped 180 degrees if desired The mic input can also receive 48V P...

Page 6: ...and XFMR switches Minimum line input gain is achieved when amplifier gain controls are set fully counter clockwise Maximum line level input level is 30 dBu into the solid state gain amplifier and 19 d...

Page 7: ...STT 1 STT 1 Origin Rear Panel PUSH PUSH 115 ORIGIN STT 1...

Page 8: ...Use to link dual STT 1 units for stereo operation Any conventional RCA phono cable should work appropri ately 8 EARTH AUDIO GROUND JUMPER A barrier terminal which ties earth ground to audio ground If...

Page 9: ...lection of these 1960 s era console modules We use them on pop recording dates by choice however more than 90 of our recording schedule remains acoustic classical jazz and ethno eclectic where we use...

Page 10: ...resolutions of the SS and VT gain controls That is the user cannot place each gain potentiometer at the same angular setting and expect the same gain Rather we have optimized each gain amplifier unto...

Page 11: ...ing with a fixed Q of 1 0 12 BOOST CUT CONTROL Conductive plastic rotary potentiometer offering up to 15 dB of boost and 15 dB of cut Boost Cut potentiometer has 21 detented positions for accurate rep...

Page 12: ...IN 21k 16k 10k 8 0k 5 8k 4 8k X10 IN 20 25 50 90 120 140 190 30 220 4 0 1 0 0 4 0 6 Q IN 1 6k 2 1k 400 1 4k 1 2k 900 250 300 4 0 1 0 0 4 0 6 2 5k Q MIC LINE INST XFMR 48V POL IN REV INPUT TT VT OUT SS...

Page 13: ...ifferent equalizer path amplifiers and two distinctly different opto compressor path amplifiers in one chassis We do not match inherent gains between the vacuum tube and solid state amplifiers a small...

Page 14: ...e used simultaneously with the parametric equalizer pre or post and can be used with the additional solid state audio path amplifier vacuum tube audio path amplifier or with no additional amplifier in...

Page 15: ...of 4 dBu NOTE Unbalanced main output is 6 dB lower output than shown on VU meter Gain reduction metering is disabled when de es ser is enabled 27 MASTER LEVEL CONTROL OUTPUT MASTER Master output level...

Page 16: ...aning that no additional signal path amplifiers are required for dynamics operation Passive opto resistive elements are oriented as variable resistors to ground achieving broad levels of gain reductio...

Page 17: ...DI IN DIRECT OUT UNBAL OUT BAL OUT DYNAMICS LINK FEMALE XLR 1 4 PHONE JACK front panel 1 4 PHONE 1 4 PHONE MALE XLR MALE XLR MALE XLR RCA PHONO 2 2 2 2 2 Millennia MIT 01 Audio Transformer POLARITY R...

Page 18: ...ohm instrument DI input Output Impedance 24 3 x2 ohms balanced 49 9 ohms unbalanced Noise Common source mic in 71 dB 50 dB gain 121 dB EIN solid state 30 ohm source mic in 68 dB 50 dB gain 118 dB EIN...

Page 19: ...0X Yes Peak Shelf Selection on Hi Lo bands Yes Bypass Selection on Each Band Yes Twin Topology Selection Switch In FET Signal Path Amplifier Switch Out Vacuum Tube Signal Path Amplifier ELECTRO MECHAN...

Page 20: ...warranties except as listed above Millennia Media shall not be liable for special subsequent incidental consequential or punitive damages including but not limited to damage to recordings broadcasts...

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