THETA DIGITAL
C
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Dreadnaught II
Owner’s Manual
REV 1.02
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PREFACE
CONGRATULATIONS
You have just acquired the most advanced and versatile component for the amplification of audio ever to have
been developed.
IMPORTANT
Save all packaging in a dry place away from fire hazards. Your Dreadnaught II 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 Dreadnaught II to the factory for service, or if you send it to us for updating, the original
packaging will best protect the unit from shipping damage.
In order to achieve the fullest flexibility and enjoyment from your Dreadnaught II, we at Theta recommend that
you read this manual in full before connecting the unit to your audio/video system.
Note: It is imperative that the Dreadnaught II be operated in a well ventilated environment and the immediate
external temperature be maintained as specified. External cooling fans may be required in some cases. Do
not stack any equipment directly above or below the Dreadnaught II to protect it from overheating, as well as
the continued functionality of any equipment near and around it.
Warning: Each channel is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground,
and cannot be connected to a system ground or a loudspeaker system with a common ground. Consult your
speaker manufacturer to ensure that any speaker in your system that will be connected to the Dreadnaught II
does NOT have internal circuitry with a common ground.
WARNING
United States law prohibits disposition of these commodities to Libya, Laos, North Korea, Cambodia or Cuba
unless otherwise authorized by the United States.
© 2002 Theta Digital Corporation. All rights reserved.
Written and Illustrated by Glenn Buckley.
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 Corporation.
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The lightning flash with arrowhead symbol, within an equilateral
triangle, is intended 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.
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Dreadnaught II Identification Record
This information is for your records and for future identification of the Dreadnaught II. 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)
(Date of installation)
(Date of installation)
(Date of installation)
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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 DREADNAUGHT II, FIRST TURN OFF THE POWER
AND THEN DISCONNECT THE AC POWER CORD.
WHEN INSTALLING THE DREADNAUGHT II IN YOUR SYSTEM, MAKE CERTAIN TO ALLOW A
MINIMUM OF ½ INCH OF VENTILATION ON EACH SIDE OF THE UNIT. ALSO ALLOW AT LEAST 3
INCHES OF VENTILATION SPACE ABOVE 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 DREADNAUGHT II 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 DREADNAUGHT II.
IF REPLACEMENT OF THE AC LINE FUSE AND/OR ANY INTERNAL 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 THE DREADNAUGHT II BE OPERATED IN A WELL VENTILATED
ENVIRONMENT AND THE IMMEDIATE EXTERNAL TEMPERATURE BE MAINTAINED AS SPECIFIED.
EXTERNAL COOLING FANS MAY BE REQUIRED IN SOME CASES. DO NOT STACK ANY
EQUIPMENT DIRECTLY ABOVE OR BELOW THE DREADNAUGHT II AS TO PROTECT IT FROM
OVERHEATING, AS WELL AS THE CONTINUED FUNCTIONALITY OF ANY EQUIPMENT NEAR AND
AROUND IT.
EACH CHANNEL IS A BALANCED BRIDGE AMPLIFIER, THUS THE NEGATIVE SPEAKER TERMINAL
IS NOT A GROUND, AND CANNOT BE CONNECTED TO A SYSTEM GROUND OR LOUDSPEAKER
SYSTEM WITH A COMMON GROUND. CONSULT YOUR SPEAKER MANUFACTURER TO ENSURE
THAT ANY SPEAKER IN YOUR SYSTEM THAT WILL BE CONNECTED TO THE DREADNAUGHT II
DOES NOT HAVE INTERNAL CIRCUITRY WITH A COMMON GROUND.
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 1/4 inch.
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Table of Contents
PREFACE...........................................................................................................................................................ii
Dreadnaught II Identification Record .............................................................................................................iv
Dreadnaught II Block Diagram........................................................................................................................3
Single and Two channel Modules...................................................................................................................9
Wiring Diagram....................................................................................................................11
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INTRODUCTION
Getting to know your Dreadnaught II
This Dreadnaught II has been put through a rigorous and unique testing procedure that ensures that it will
last for many years with minimal service requirements. This procedure includes the following:
•
•
All assembled circuit boards are given a thorough visual inspection and are then tested in a bench-
reference Dreadnaught II.
The tested, assembled circuit boards are then installed in a new Dreadnaught II and the whole unit is
tested for every function and parameter.
•
•
•
The unit is put on a burn-in torture rack to test for any possible component failures.
It is then tested on an audio analyzer for all pertinent parameters.
The unit has all remaining chassis components installed and then undergoes a complete visual
inspection, which assures that all Dreadnaught II’s meet visual specifications.
•
The Dreadnaught II then undergoes a critical listening and functional test.
Burn-In Time
This unit has a break in period of about 1 week during which continuous improvement in sound quality will be
observed. It is recommended that music be played continuously through the unit during this time to expedite
the break in period.
Reference Manual Conventions
For clarity purposes, references to buttons and LED’s will be shown in bold capital letters.
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IMPORTANT NOTICE
I.
It is imperative that the Dreadnaught II be connected to a ground via its three wire AC power cord. It
is important that the AC power outlet, which the Dreadnaught II is plugged into, is actually grounded.
Failure to do so will severely compromise the performance, reliability and safety of use of the
Dreadnaught II.
II.
Ventilation is an important issue when placing the Dreadnaught II in a system. Make certain that the
Dreadnaught II is placed in a well-ventilated area or rack unit.
III.
Please take note that some powerline conditioners defeat the AC power ground on their outlets. If
the intention is to plug the Dreadnaught II into a line conditioner, check with your dealer to make
certain that the particular conditioner that is intended for use DOES NOT DEFEAT THE AC
GROUND on its AC outlets. Only the highest powered line conditioners should be considered for
use with the Dreadnaught II. Otherwise, the amplifier’s power output may be compromised.
IV.
V.
DO NOT remove any cover panels from the Dreadnaught II, as there are no user serviceable
components inside. Refer servicing and updating to qualified service personnel only.
Endcaps on all unused RCA inputs will improve the sound quality and may reduce the susceptibility
to RF induced anomalies.
VI.
It is imperative that the Dreadnaught II be operated in a well ventilated environment and the
immediate external temperature be maintained as specified in Appendix D of this manual. External
cooling fans may be required in some cases. Do not stack any equipment directly above or below
the Dreadnaught II, to protect it from overheating, as well as the continued functionality of any
equipment near and around it.
VII.
Each channel is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground,
and cannot be connected to a ground or a loudspeaker system with a common ground. Consult your
speaker manufacturer to ensure that any speaker in your system that will be connected to the
Dreadnaught II does NOT have internal circuitry with a common ground.
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Dreadnaught II Block Diagram con’t.
Figure 2 - Block Diagram (Dreadnaught II showing two channel module)
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Front Panel Layout
Figure 3a - Front Panel Layout
1. STANDBY button. After the rear panel MAIN POWER switch is turned on press the front panel STANDBY button
to exit the standby mode. All channels on the stereo bus will come out of standby. If the surround bus is active,
with specific channels assigned to it, they will exit the standby mode as well.
2. SURROUND button. Activates/deactivates the SURROUND bus.
3. SURROUND LED. Illuminates when the surround bus is active.
4. THERMAL LED. Illuminates when any channel’s temperature rises above the maximum operating temperature.
5. STANDBY LED. Illuminates red when the power amplifier is in STANDBY, green when the amplifier is active.
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Front Panel Layout – Rackmount Option
Figure 3b – Rackmount Front Panel Layout
1. STANDBY button. After the rear panel MAIN POWER switch is turned on press the front panel STANDBY button
to exit the standby mode. All channels on the stereo bus will come out of standby. If the surround bus is active,
with specific channels assigned to it, they will exit the standby mode as well.
2. SURROUND button. Activates/deactivates the SURROUND bus.
3. SURROUND LED. Illuminates when the surround bus is active.
4. THERMAL LED. Illuminates when any channel’s temperature rises above the maximum operating temperature.
5. STANDBY LED. Illuminates red when the power amplifier is in STANDBY, green when the amplifier is active.
6. Channel STATUS LED.
When OFF, indicates that there is no Amp module installed
When GREEN, indicates module is present
When RED, indicated module is overheating
7. FUSE+ LED. When on, indicates that the + (plus) rail fuse is blown.
8. FUSE- LED. When on, indicates that the – (minus) rail fuse is blown.
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Rear Panel Layout
Figure 4 – Rear Panel Layout showing both single and two channel modules installed
1. Channel THERMAL LED. Illuminates when the channel rises above the maximum operating temperature. The
Dreadnaught II should be powered off and cooled when this LED is lit.
2. Channel RAIL FUSE + LED. When this LED is illuminated, the fuse on the positive rail of the channel is blown.
(Internal on 2 channel modules).
3. + Module RAIL FUSE. If necessary to replace, use only same type and rating.
4. BINDING POST. (Single Channel module). Connect plus and minus speaker wires for one speaker to
appropriately marked terminals of each post. The binding post on the single channel module will operate
optimally using spade lugs.
5. Channel RAIL FUSE LED. When this LED is illuminated, an internal fuse on the negative rail of the channel is
blown. (Internal on 2 channel modules).
6. SINGLE-ENDED input jack on single channel module.
7. STEREO/SURROUND buss selector switch. Assigns the module to either the STEREO or SURROUND buss.
8. - Module RAIL FUSE. If necessary to replace, use only same type and rating.
9. BALANCED input jack on single channel module.
10. POSITIVE BINDING POST – Channel A. (Two channel module). Connects to the + (plus) speaker connector.
The binding posts on the two channel module can accept spade lugs, banana plugs or bare wire.
11. NEGATIVE BINDING POST – Channel A. (Two channel module). Connects to the – (minus) speaker connector.
12. BALANCED input jack – Channel A of two channel module.
13. SINGLE-ENDED input jack – Channel A on two channel module.
14. POSITIVE BINDING POST – Channel B. (Two channel module). Connects to the + (plus) speaker connector.
The binding posts on the two channel module can accept spade lugs, banana plugs or bare wire.
15. NEGATIVE BINDING POST – Channel B. (Two channel module). Connects to the – (minus) speaker connector.
16. STEREO/SURROUND bus selector switch. Assigns the affected module (both channels) to either the STEREO
or SURROUND buss.
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17. BALANCED input jack – Channel B of two channel module.
18. SINGLE-ENDED input jack – Channel B on two channel module.
19. SURROUND REMOTE TRIGGER jack. When the rear panel SURROUND TRIGGER jack receives a 5-12 VDC
pulse the Dreadnaught II’s surround mode will change from its current status, either on or off.
20. DB9 RS232 connector. Used for connecting a system control device to the Dreadnaught II to control and monitor
its functions.
21. RJ45 RS232 connector. See DB9 RS232 connector, above.
22. STANDBY REMOTE TRIGGER jack. When the rear panel STANDBY TRIGGER jack receives a 5-12 VDC pulse
the Dreadnaught II will change its mode from either standby to operate, or operate to standby, depending on its
current mode.
23. MAIN POWER Switch. Master power switch. Disconnects AC to all circuits. It is recommended that this be left
ON at all times during regular use with the exception of whenever cables are connected/disconnected or when
the unit is not going to be used for an extended period of time.
24. Rear panel FUSE. If necessary to replace, use same type and rating only.
25. AC POWER INPUT.
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OPERATION
Before turning on the Dreadnaught II, ensure that all precautions and warnings have been carefully reviewed
and adhered to. Damage to the Dreadnaught II caused by improper operation, wiring and/or ventilation will
not be covered under warranty and Theta will not be liable for any consequential damage or loss.
When first turning on the rear panel power switch, the red STANDBY LED on the front panel will illuminate,
indicating that all channels are in standby mode. When in standby, the signal is muted and the output bias of
each channel is reduced to approximately 10 percent. The SURROUND LED on the front panel will
illuminate green, indicating that all channels, regardless of which buss they are assigned to, will come on
when the amplifier is taken out of standby.
The two front panel buttons operate independently. The STANDBY button toggles between standby and
operate. When in standby, the front panel STANDBY LED will be red and when out of standby, this same
LED will be green. The SURROUND button activates/deactivates the channel(s) that been assigned to the
surround buss via their rear panel switch. When the surround buss is active, the SURROUND LED on the
front panel will illuminate green. When the surround buss is inactive, the front panel SURROUND LED will
be off. The surround buss may be turned on or off regardless of whether the unit is in standby or operate.
The state of the surround buss is unaffected by the standby state.
Each module can be assigned to operate on either the STEREO or SURROUND buss. When the
Dreadnaught II has more than two modules installed in it, it is recommended that the front left and right
channels be set to STEREO and all remaining channels be set to SURROUND, via the rear panel
STEREO/SURROUND switch. In the STEREO mode (front panel SURROUND LED off), any channels set
to the STEREO buss will operate. In the SURROUND mode (front panel SURROUND LED illuminates
green), all channels will operate.
Single and Two channel Modules
The Dreadnaught II can be loaded with any combination of modules. Those available are single (mono) and
two channel (stereo) modules. Each module can be set to operate individually on the stereo or surround
buss.
Note: The speaker output polarity on the single channel module is reversed compared to the two channel
module. The maximum spade lug thickness for the two channel module is 1/16”
Remote Triggers
When the rear panel STANDBY TRIGGER jack receives a 5-12 VDC pulse, the Dreadnaught II will change
its state from either standby to operate, or operate to standby, depending on what the current state is.
When the rear panel SURROUND TRIGGER jack receives a 5-12 VDC pulse, the Dreadnaught II’s surround
buss will change from its current status, either on or off.
Use a 1/8” (3.5mm) mono plug for these jacks.
RS232
RS232 is an option in the Dreadnaught II. It can be installed at any time either at the factory or an authorized
Theta dealer. All functions of the Dreadnaught II can be controlled and monitored via RS232, using either
the RJ45 or DB9 connector. As long as the rear panel power switch in turned on, the RS232 circuitry is
always active, thus allowing the Dreadnaught II to be taken out of STANDBY via RS232.
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Appendix A
Troubleshooting Guide
If the Dreadnaught II should function abnormally during operation, please review the items in the following
checklist. Please be sure to thoroughly check all other connected components such as speakers,
preamplifiers, as well as cables.
Symptom
Possible Cause(s)
Remedy
No power or front panel Power cable is not inserted 100% into AC Ensure that the AC cord is inserted all the
lights and no sound.
input connector.
way into the Dreadnaught II and that the wall
outlet is active.
Rear panel fuse is open.
Circuit breaker is open (AC outlet).
Replace with same type and rating ONLY.
Check the AC outlet circuit breaker and reset,
if necessary, or contact your dealer.
No audio output.
STEREO/SURROUND switch not set Verify all switch settings to ensure that a
correctly.
given channel is assigned to the correct buss.
Press the front panel SURROUND button
once. The SURROUND LED should be
illuminated green.
SURROUND buss is off, or in standby
Overheating
If the front panel THERMAL LED is
illuminated, shut down the Dreadnaught II
until it cools. An external fan may be
necessary.
Plus or minus fuse is open.
Normal operation
Check the rear panel fuse indicator LEDS. If
one is on, an internal fuse is open.
Hot/Warm
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Appendix B
Wiring Diagram
This section provides an example illustration of an input and output wiring scheme. In this example, the Dreadnaught
II has 3 single channels and two 2 channel modules installed. Before making any connections, please turn off ALL
audio and video devices. Unplug those that do not have a main power switch. It is recommended that all cables,
including speaker cables be kept as short as possible for best sound quality.
Figure 5 - Examples of Typical Input and Output Connections
------------ = optional connection.
WARNING: Each channel is a balanced bridge amplifier, thus the negative speaker terminal is NOT a ground, and
cannot be connected to a ground or a loudspeaker system with a common ground. Consult your speaker
manufacturer to ensure that any speaker in your system that will be connected to the Dreadnaught II does NOT have
internal circuitry with a common ground. Damage will occur if the negative terminal is connected to ground, or to a
terminal of another channel or module.
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Appendix C
RS232 Protocol
RS232 settings are internally definable via jumper blocks, to accommodate interfacing with a wide range of control
products.
Baud rate
9600 or 19200
Echo status
AUTO or REQUEST
Baud rate:
Echo status:
Maximum number of bits per second. The duration of a single bit is equal to 1 / baud rate.
Specifies whether the STATUS of each parameter shown in the protocol will automatically (AUTO) be
echoed back to the controller when there is any change, or whether the user must manually request
changing these settings.
All commands will follow the format:
<Header><Command Identifier><Argument 1><Argument 2><Argument 3>
where:
<Header> = <FEh><E8h> (254 232)
<Command identifier> = <byte>
<Argument x> = <byte>
Each command will be able to access the system configuration directly, eliminating the need to press any button on
the Dreadnaught II’s front panel.
Examples:
1) To select put the Dreadnaught II into standby: Send FE, E8, 01, 00, 00, 00 (all values in Hex).
Where FE and E8 are the header, 01 = command, 00 = main standby, 00 = put unit in standby and 00 = filler
(4 characters required)
2) To activate the Surround buss: Send FE, E8, 01, 01, 01, 00
Where FE and E8 are the header, 01 = command, 01 = surround buss, 01 = activate surround buss and 00 =
filler (4 characters required)
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Command
01
Description
Standby
Argument 1 Argument 1 Description
Argument 2 Argument 2 Desc
Argument 3 Arg 3 Desc
0
0
1
1
0
Main standby
Main standby
Surround bus
Surround bus
0
1
0
1
Put unit in standby
Take unit out of standby.
Make surround bus inactive.
Activate surround bus.
02
Status
Return amplifier status.
The RS232 can be set using a hardware jumper to automatically send changes to the RS232 port.
Status Byte # Byte Description bit
Value Description
Main bus
1
Bus
0
1
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
Surround bus
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
2
Temperature
3
4
5
Fuse Plus Rail
Fuse Minus Rail
Channel Sense
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RS232 Hardware Connections
Figure 6 – Dreadnaught II RS232 Jack Pinout
These are the connector drawings only. The RS232 cable must be a regular RS232 or mouse extender cable, wired
pin for pin.
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Figure 7 – Dreadnaught II RS232 Jumper Settings
RS232 Jumper Settings
There are 2 possible Baud rates: 9600 and 19200. The factory default is 19200. To change the baud rate to 9600,
move the jumper to the center and top pins (if the RS232 board is orientated as in figure 7).
The STATUS can be returned to the controller either: automatically every time a parameter has changed, or the user
can request it manually. The factory default is AUTO. To set the Echo STATUS to return status information only upon
request, move the AUTO/REQ jumper to the top pins, or nearer to REQ on the RS232 board.
The three SELECT jumpers are not currently implemented.
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Appendix D
Specifications
Inputs:
Analog Audio:
1 Single-ended per channel (RCA) on each module type.
1 Balanced per channel (XLR) on each module type.
Input Impedance:
50 KΩ
Single-ended or Balanced, for each phase (both modules).
Input sensitivity: Mono Module: (Single-ended)
(Balanced)
2.18V RMS input for 225W into 8 ohms.
1.09V RMS input for 225W into 8 ohms.
1.5V RMS input for 100W into 8 ohms.
0.75V RMS input for 100W into 8 ohms.
26dB (20x).
Stereo Module: (Single-ended)
(Balanced)
Gain:
Mono Module: (Single-Ended)
(Balanced)
32dB (40x).
Stereo Module: (Single-Ended)
(Balanced)
25.5dB (19x).
31.5dB (38x).
Polarity: (Single-ended) Non-Inverting.
(Balanced) Pin-2 = Positive, Pin-3 = Negative for Non-Inverting Output.
Outputs:
I/O
Analog Audio:
RS232:
1 balanced output per channel.
1 DB9 and 1 RJ45 connector.
Modes/Processes:
Standby, Stereo and Surround. Channels may be individually assigned to either buss.
Power Output: Mono Module:
(8 ohms-one channel driven)
(8 ohms-five channels driven)
(4 ohms-one channel driven)
(8 ohms-one to ten channels driven) 100W (rated)
(4 ohms-one channel driven) 200W (rated)
225 W (rated)
225 W (rated)
450 W (rated)
270 W (typical)
245 W (typical)
475 W (typical)
115W (typical)
210W (typical)
Stereo Module:
Frequency Response:
THD+Noise:
(-3dB points @ full power) 0.3Hz - 250 kHz.
Mono Module: <1%
Stereo Module: <1.25% (both channels driven into 100W @ 8 ohms).
(unweighted) >100dB
Signal to Noise Ratio:
Power Requirements:
Power Consumption:
117 VAC, 18 amp; 230 VAC, 9 amp; 50-60 Hz; for full power in all channels.
No. of 1 ch. No. of 2 ch. Total no. of STANDBY IDLE
All chs. at rated
Modules
Modules
channels
power into 8 ohms
2
3
4
5
2
3
4
5
75W
100W
125W
150W
125W
175W
225W
275W
750W
1020W
1230W
1440W
2
3
4
5
4
6
90W
120W
150W
180W
145W
205W
265W
325W
860W
1275W
1690W
2080W
8
10
1
1
1
1
1
2
3
4
3
5
7
9
85W
115W
145W
175W
135W
195W
255W
315W
805W
1210W
1615W
2020W
2
2
2
1
2
3
4
6
8
105W
135W
165W
185W
245W
305W
1155W
1560W
1965W
3
3
1
2
5
7
130W
160W
235W
295W
1425W
1830W
4
1
6
155W
285W
1635W
Trigger Inputs:
Dimensions:
Weight:
5-12 VDC Pulse between 1 and 500mS.
17 5/8” W x 8 7/16” H x 23 1/2" D (448 x 214 x 597 mm)
98 Lbs. Stand alone (44.5 Kg), 111 Lbs. Boxed with accessories (50.4 Kg)
Maximum Operating Temperature:
Internal: 176° F (80° C)
Room: 122° F (50° C)
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90 DAY LIMITED WARRANTY TERMS AND CONDITIONS
(3 Year optional extended service contract)
1.
2.
Theta Digital Corporation, henceforth referred to as Theta, warrants the product designated herein to be free of
manufacturing defects in material and workmanship, subject to the conditions set forth herein, for a period of 90 days
from the date of purchase by the original purchaser, henceforth referred to as purchaser. If the purchaser registers the
unit with Theta by mailing in the warranty card, together with a copy of the bill of sale, within 14 days of the date of
purchase, said purchaser will be registered for an extended service contract. The extended service contract extends
the 90 days to a period of 3 years from the date of purchase by the original purchaser or no later than 7 years from the
date of shipment to the authorized Theta dealer, whichever comes first.
CONDITIONS
This warranty is subject to the following conditions and limitations. The warranty is void and inapplicable if the product
has been used or handled other than in accordance with the instructions in the owner's manual, abused or misused,
damaged by accident or neglect or in being transported, or if the defect is due to the product being repaired or
tampered with or modified by anyone other than Theta or an authorized Theta repair center. In the unlikely event that
the unit requires service, contact Theta for an RA (Return Authorization) number. The product must be packed and
returned to Theta or an authorized Theta repair center by the customer at his or her sole expense. Theta will pay
return freight of its choice. A returned product must be accompanied by a written description of the defect, a photocopy
of the original purchase receipt, and a daytime phone number where the owner can be reached. The unaltered receipt
must clearly list model and serial number, the date of purchase, the name and address of the purchaser and authorized
dealer and the purchase price. Theta reserves the right to modify the design of any product without obligation to
purchasers of previously manufactured products and to change the prices or specifications of any product without
notice or obligation to any person.
3.
REMEDY
In the event the above product fails to meet the warranty, and the above conditions have been met, the purchaser's
sole remedy under the limited warranty shall be to obtain an RA number and return the product to Theta or an
authorized Theta repair center where the defect will be rectified without charge for parts or labor.
4.
5.
LIMITED TO ORIGINAL PURCHASER
This warranty is for the sole benefit of the original purchaser of the covered product and shall not be transferred to a
subsequent purchaser of the product.
DURATION OF WARRANTY
This warranty expires 90 days after the date of original purchase. If Theta receives the completed warranty registration
card within 14 days of original purchase, this period is extended to the third anniversary of the original date of purchase
or no later that the seventh anniversary of the shipment to the authorized Theta dealer, whichever comes first.
6.
7.
MISCELLANEOUS
ANY IMPLIED WARRANTIES RELATING TO THE ABOVE PRODUCT SHALL BE LIMITED TO THE DURATION OF
THIS WARRANTY. THE WARRANTY DOES NOT EXTEND TO ANY INCIDENTAL OR CONSEQUENTIAL COSTS
OR DAMAGES TO THE PURCHASER. Some states do not allow limitations on how long an implied warranty lasts or
an exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply
to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
WARRANTOR
Inquiries regarding the above limited warranty may be sent to the following address:
THETA DIGITAL CORPORATION
5330 DERRY AVENUE, SUITE "R"
AGOURA HILLS, CA 91301
WARRANTY OUTSIDE THE USA
Theta has formal distribution in many of the countries of the free world, in each country the Theta Importer has
contractually accepted the responsibility for product warranty. Warranty service should normally be obtained from the
importing dealer or distributor from whom you obtained your product.
WARNINGS
1. To prevent fire or shock hazard, do not expose your Theta product to rain or moisture.
2. This unit contains voltages which can cause serious injury or death. Do not operate with covers removed. Refer all
servicing to your authorized Theta dealer.
3. For continued protection against fire hazard, replace fuses only with the same type and rating of fuses as specified.
GB 1.02
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