Theta Digital Prometheus Owner's Manual
THETA DIGITAL
Pr om e t h e u s
Owner’s Manual
Vers 1.01
PREFACE
CONGRATULATIONS
You have just acquired one of the most advanced and versatile components for the amplification of audio ever developed.
IMPORTANT
Save all packaging in a dry place away from fire hazards. Your Prometheus is a precision electronic instrument and
should be properly packaged any time shipment is made. In the unlikely event that you have to return your Prometheus to the factory or dealer for service or updating, the original packaging will best protect the unit from shipping
damage.
In order to achieve the fullest flexibility and enjoyment from your Prometheus, we at Theta recommend that you read
this manual in full before connecting the unit to your audio system.
Note: It is imperative that Prometheus be operated in a well-ventilated environment and that the immediate external
temperature be maintained as specified. Do not stack any equipment directly above, below or to the immediate
sides of the Prometheus to protect it from overheating, as well as to protect the continued functionality of equipment
near and around it.
© 2014 Amplifier Technologies, Inc. All rights reserved.
This manual is also available for download as a PDF file at Theta Digital’s website. http://www.thetadigital.com. Check out the
library.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, for any
purpose, without the express written permission of Theta Digital and Amplifier Technologies, Inc.
The lightning flash with arrowhead symbol, within an equilateral triangle, is in-
tended to alert the user to the presence of uninsulated “dangerous voltage”
within the product’s enclosure that may be of significant magnitude to constitute
a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user
to the presence of important operating and maintenance (servicing) instructions
in the literature accompanying the product.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE
CAUTION: TO PREVENT ELECTRIC SHOCK, DO NOT USE THE AC (POLARIZED) PLUG WITH
AN EXTENSION CORD, RECEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE
FULLY INSERTED TO PREVENT BLADE EXPOSURE.
Extension cords are not recommended for use with this product.
Prometheus Identification Record
This information is for your records and for future identification of the Prometheus. Please take a moment to fill out all
pertinent data now, and as upgrades and/or options are installed. Whenever upgrades, inquiries and/or changes
are requested, the serial number will be required.
SERIAL NUMBER
DATE PURCHASED
DEALER’S NAME
DEALER’S ADDRESS/PHONE
INSTALLED CARDS/OPTIONS
(Date of installation)
(Date of installation)
(Date of installation)
(Date of installation)
SAFETY PRECAUTIONS
Please carefully read each item of the operating instructions and safety precautions before installing and using this
product. Use extra care to follow the warnings written on the product itself and/or in the operating instructions. Keep
the operating instructions and safety precautions for future reference.
CAUTION: TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE ANY OF THE COVER PANELS.
NO USER-SERVICEABLE PARTS INSIDE. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.
TO PREVENT FIRE OR SHOCK HAZARD, DO NOT ALLOW LIQUIDS TO SPILL OR OBJECTS TO FALL INTO
ANY OPENINGS OF THE PRODUCT.
THIS UNIT IS SUPPLIED WITH A 3 PIN GROUNDED AC PLUG. ALWAYS INSERT THE AC PLUG INTO A
GROUNDED OUTLET. DO NOT REMOVE THE GROUND PIN OR DISABLE THE GROUND FOR ANY PURPOSE.
BEFORE MAKING ANY CONNECTIONS TO THE PROMETHEUS, FIRST TURN OFF THE POWER AND THEN
DISCONNECT THE AC POWER CORD.
WHEN INSTALLING PROMETHEUS IN YOUR SYSTEM, MAKE CERTAIN TO ALLOW A MINIMUM OF 6 INCHES
OF VENTILATION ON TOP AND ON EACH SIDE OF THE UNIT. IMPROPER VENTILATION OF THE UNIT MAY
CAUSE OVERHEATING, WHICH MAY DAMAGE THE UNIT AND CAUSE A FIRE. PLACE THE UNIT ON A SOLID
SURFACE ONLY. I.E. NOT ON CARPET, ETC.
DO NOT PLACE THE PROMETHEUS NEAR HEAT SOURCES SUCH AS DIRECT SUNLIGHT, STOVES, HEAT
REGISTERS, RADIATORS OR OTHER HEAT PRODUCING EQUIPMENT.
TO PREVENT DAMAGE TO THE ANALOG OUTPUT CIRCUITRY, BE CERTAIN NOT TO SHORT THE OUTPUT
SIGNAL TO GROUND. ENSURE THAT YOUR AUDIO OUTPUT CABLES DO NOT HAVE ANY INTERNAL
SHORTS BEFORE CONNECTING THEM TO THE PROMETHEUS.
IF REPLACEMENT OF THE AC LINE FUSE AND/OR ANY INTERNAL/EXTERNAL FUSE BECOMES NECESSARY, REPLACE ONLY WITH SAME VALUE AND TYPE OF FUSE. NEVER BYPASS THE FUSE.
IF THE AC CORD BECOMES DAMAGED, DO NOT USE IT. IMMEDIATELY REPLACE IT WITH A NEW ONE OF
THE SAME OR BETTER RATING.
IT IS IMPERATIVE THAT PROMETHEUS BE OPERATED IN A WELL VENTILATED ENVIRONMENT AND THE
IMMEDIATE EXTERNAL TEMPERATURE BE MAINTAINED AS SPECIFIED. DO NOT STACK ANY EQUIPMENT
DIRECTLY ABOVE, BELOW OR TO THE IMMEDIATE SIDES OF THE PROMETHEUS AS TO PROTECT IT FROM
OVERHEATING, AS WELL AS THE CONTINUED FUNCTIONALITY OF ANY EQUIPMENT NEAR AND AROUND
IT.
AFTER MARKET and THIRD PARTY MODIFICATIONS
Please note that any after market and/or third party modifications will void the warranty. In the case of changing the
feet on a unit, in order to prevent any damage (which will also not be covered under warranty), please verify that the
screws being used to secure non-Theta feet do not screw any deeper into the chassis than the original ones. The
original screw is 1/4-20 by 1/2 and goes into the chassis 1/8 inch.
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