Owner`s manual

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.