Rogue Audio Stereo Amplifier Sixty Six User Guide

Issue : 2  
Date : 04/17/00  
Rogue Sixty Six  
Vacuum Tube Preamplifier  
Owners Manual  
Vacuum Tube Amplifiers  
 
INTRODUCTION  
Congratulations on your purchase decision! We at Rogue Audio truly  
believe that our amplifiers and preamplifiers provide the “smartest” value in  
high-end audio. If you have never owned a vacuum tube preamplifier you  
will be thrilled by the silky-smooth sound and incredible detail that only a  
tube preamp can provide. We at Rogue Audio are extremely proud of our  
products and want you to enjoy them to their fullest potential. So please,  
take the time to read through this short manual so that you can be confident  
that you have set up your new preamp properly.  
SETTING UP YOUR PREAMPLIFIER  
tools required: phillips head screwdriver and a clean glove  
WARNING - This preamplifier uses and generates  
voltages that could cause injury or death. Never  
open the amplifier while it is plugged in, and always  
wait at least one hour after turning the unit off to  
unplug and open the unit. Lethal voltages can  
remain in the electronics after the unit is unplugged  
1) Opening the box - Carefully remove the preamplifier and power  
supply from the box. It is important that you retain the packing  
material and box in the event that the amplifier ever needs  
servicing. The packing material and box have been carefully  
designed to protect your valuable equipment during shipping so  
you don’t want to throw them away!  
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2) Connecting the power supply - Carefully plug the black six pin  
connector coming from the power supply into the rear of the  
preamplifier. See Figure 1. Connect the IEC end of the  
detachable power cord to the power supply, and plug the  
opposite end into the wall outlet.  
Power  
Supply  
Output Jacks  
Phono  
Input Jacks  
Ground  
Figure 1  
3) Placement of the preamplifier - The preamplifier is the “brains“  
of your system and will have the greatest number of  
interconnects. Therefore, the preamplifier should be located  
such that it is accessible for cabling between itself and all other  
relevant pieces of equipment. NEVER place another piece of  
equipment on top of the preamplifier and be sure to leave  
adequate space (three inches or more) on the top, sides and  
rear for air flow. The external power supply should be  
placed as far away as possible from any other components or  
cables.  
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4) Connections to other components - Connections are shown in  
Figure 1. The input connections for source material (phonograph,  
CD player, tuner, tape recorder) are made via RCA auxiliary  
jacks are also available for line level sources (approximately 1  
volt). A five way lug is also provided for grounding the  
turntable to the preamplifier. The outputs to the power amplifier  
and tape recorder are arranged to the right of the input jacks. The  
tape output (as shipped) is passive, however it can be configured  
as an active outputs for powering a subwoofer or second  
amplifier. To do so, remove the cover and find the two small  
black slide switches on the rear (RCA jack) circuit board. Refer  
to figures 2 and 3 for approximate locations of these switches.  
The two positions are labeled “A” for active and “P” for passive  
modes. Simple slide the two switches to the “A” position and the  
tape output will become active.  
WARNING : If unit has been powered up, you must  
turn off the switch and wait at least one hour before  
disconnecting the electrical cord. After doing so, the  
unit may be unplugged and the top cover removed.  
This time is required for dangerous voltages to  
dissipate to ground.  
5) Polarity - The Rogue sixty-six preamplifier is an inverting  
amplifier (positive signal in gives negative signal out) so, for  
best sound, care should be taken to ensure correct polarity at the  
speaker terminals. If your power amplifier is also inverting, then  
connect the positive (+) outputs of your power amplifier to the  
positive(+) terminals of the loudspeakers and the negative (-)  
outputs to the (-) negative loudspeaker terminals. If your power  
amplifier is non-inverting, then connect the positive outputs (+)  
of your power amplifier to the negative (-) loudspeaker  
terminals, and the negative outputs (-) to the positive (+)  
loudspeaker terminals. If you are unsure as to the polarity of  
your power amplifier, check the owners manual or contact the  
manufacturer. If all else fails, try both connections and listen to  
which sounds better (do this using several different recordings as  
not all recordings are made with correct phase).  
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OPERATING YOUR PREAMPLIFIER  
1) Delays- Note that the Rogue Sixty-six is equipped with a slow  
turn-on feature that protects other equipment from dangerous  
transients at turn-on as well as significantly prolonging tube life.  
This feature is provided via several timing circuits that allow the  
tube filaments to reach operating temperature before turning on  
the high voltage supply. The outputs are muted during this  
sequence and then opened after turn-on transients have been safely  
dissipated to ground.  
2) Powering up the system - First turn on the preamplifier by  
pushing in the “power” button. The red LED will light after  
several seconds. After approximately 10 seconds, the high  
voltage supply will turn on. After an additional ten seconds, the  
outputs will disconnect from ground and the preamp is ready.  
After turning on the preamplifier, turn on the power amplifier  
and source material and you are ready for listening.  
Note : This unit will not play for approximately 20  
seconds after power on while tubes warm up.  
3) Switches and Controls - The Rogue Sixty-six is equipped with  
volume, balance, source, power, mute, (and record on phono version  
only).  
Volume - gain adjustment from 0- 23 dB  
Balance - full left and right channel attenuation  
Source - selects source material (CD, phono, tape, tuner, aux1, aux2)  
Power - on/off operation  
Mute - leaves preamplifier on while muting output  
Record - must be pressed in while taping, isolates tape player when not  
taping .  
4) Remote Volume Control - The Sixty-Six LSR (line stage remote)  
is equipped with an analog remote volume control feature. The  
volume may be adjusted manually using the knob on the front  
panel, or by using the remote control provided.  
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5) Leaving the System Running - Unlike many solid state  
amplifiers, the Sixty-Six preamplifier should not be left turned  
on when not in use. To prolong tube life, turn off the unit when  
not being used.  
MAINTENANCE  
The Rogue Sixty Six has been designed to provide many years of  
enjoyable and reliable service. The greatest care has been taken to  
select vacuum tubes that provide superior sound and ensure long life.  
In addition, this unit utilizes a slow turn on feature which helps  
prevent cathode stripping during power up. This feature will greatly  
increase usable tube life.  
Replace Tubes by :  
1) Removing the top cover by unscrewing 10 screws.  
2) Using a glove or cloth, carefully remove the tubes from their  
sockets.  
WARNING : If unit has been powered up, you must  
turn off the switch and wait at least one hour before  
disconnecting the electrical cord. After doing so, the  
unit may be unplugged and the top cover removed.  
This time is required for dangerous voltages to  
dissipate to ground.  
3) Obtain and insert a new set of tubes. It is recommended that a  
new set of tubes be obtained from Rogue. If tubes are obtained  
from another source, follow the diagram in figure 2 or 3 for tube  
type.  
4) Insert new tubes in sockets using a glove or cloth. See figure 2 or  
3 for locations.  
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12AU7  
Tubes (2)  
Active/Passive  
Switch  
Figure 2 Sixty-Six LSR  
6DJ8  
Active/Passive  
Switch  
Tubes (4)  
Phono  
Stage  
12AU7  
Tubes (2)  
Line Stage  
Figure 3 Sixty-Six Phono  
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IF THERES A PROBLEM  
Below is a checklist of problems that may be encountered.  
1) Check that power connections are secure, both main power cord  
and 6 pin connections from power supply to preamplifier.  
2) Check that all input and output signal connections are secure.  
3) Ensure that all tubes are properly seated in sockets.  
4) If these do not clear up the problem, please call Rogue Audio  
Technical Support at 570-992-9901.  
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SPECIFICATIONS  
frequency response 10Hz - 100kHz + 1dB  
THD  
< 0.1%  
gain - line stage  
gain - phono stage  
rated output  
23 dB  
40 dB  
1.5 V RMS  
50V RMS  
maximum output  
RIAA accuracy  
dimensions  
+ 0.25dB  
14” W x 5 ½” H x 10 ¾” D  
115/230V - 50/60Hz  
power requirements  
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Limited Warranty  
Warranty Period  
This product has been manufactured under the highest standards of quality and  
workmanship. Rogue Audio Inc. (hereinafter “Rogue Audio”) warrants this product  
against defects in material or workmanship as follows:  
With the exception of vacuum tubes, Rogue Audio warrants to the consumer all  
parts of this product against defects in material and workmanship for a period of  
three years from the date of retail purchase. Rogue Audio warrants the vacuum  
tubes for a period of six months from the date of retail purchase. Any defective parts  
will be replaced free of charge, excluding shipping and handling.  
Proof of purchase in the form of a bill of sale or recited invoice which indicates  
that the product is within the warranty period must be presented to obtain warranty  
service. Rogue Audio suggests that the purchaser retain the dealers bill of sale as  
evidence of the date of retail purchase.  
What’s Not Covered This warranty does not cover cosmetic damage or any  
damage that results from product misuse, product abuse, installation error,  
connection to an improper voltage supply, accident, improper maintenance,  
alterations, modifications not authorized in writing by Rogue Audio, lightening,  
power surges, or acts of God. Use of any other than Rogue Audio factory parts may  
void this warranty. This warranty does not cover the cost of parts and labor which  
would be otherwise provided without charge under this warranty, obtained from any  
source other than Rogue Audio.  
This warranty applies only to consumer use of this product and does not cover any  
product that is used in any trade or business, or in an industrial or commercial  
application.  
This warranty is valid only in the United States.  
YOUR RIGHTS  
ROGUE AUDIO LIMITS ITS OBLIGATIONS UNDER ANY IMPLIED  
WARRANTIES UNDER STATE LAWS TO A PERIOD NOT TO EXCEED THE  
WARRANTY PERIOD. SOME STATES DO NOT ALLOW LIMITATIONS ON  
HOW LONG AN IMPLIED WARRANTY LASTS, AND SOME STATES DO  
NOT ALLOW THE 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 HAVE OTHER  
RIGHTS WHICH MAY VARY FROM STATE TO STATE.  
To Obtain Service  
To obtain service, you must contact Rogue Audio and obtain a return authorization  
number, The product must be delivered to Rogue Audio in its original packaging  
prepaid at the following address:  
Rogue Audio Inc.  
3 Marian Lane  
Brodheadsville, PA 18322  
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THE ROGUE AUDIO MISSION .........  
At Rogue Audio we design and manufacture vacuum tube amplifiers.  
There is fierce competition in this market and we will only survive by  
delivering a superior product and superior service - we have the  
engineering and managerial talent to do so. Our core competencies are  
electrical, mechanical and production engineering, along with an  
overarching passion for excellence. These skills will be used to create  
products that offer outstanding value in the high-end marketplace.  
Rogue Audio amplifiers will always be engineered to provide the four  
key elements of audio value:  
superior sonics  
high quality and reliability  
an outstanding appearance  
an affordable price  
Our philosophy is simple - We will never design any amplifier that we  
would not purchase for ourselves.  
Rogue Audio Inc.  
3 Marian Lane  
Brodheadsville, PA 18322  
 

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