Rocktron Widowmaker User manual

USER’S MANUAL

Your WIDOWMAKER has been tested and complies with the following Standards and Directives
as set forth by the European Union:
Council Directive(s): 89/336/EEC Electromagnetic Compatibility
Standard(s): EN55013, EN50082-1
This means that this product has been designed to meet stringent guidelines on how much RF
energy it can emit, and that it should be immune from other sources of interference when properly
used. Improper use of this equipment could result in increased RF emissions, which may or may
not interfere with other electronic products.
To insure against this possibility, always use good shielded cables for all audio input and output
connections. Also, bundle audio cables separately from the AC power cables. These steps will help
insure compliance with the Directive(s).
For more information about other Rocktron products, please see your local dealer or one of our
importers closest to you (listed on the enclosed warranty sheet).

OPERATING PRECAUTIONS
NOTE: IT IS VERY IMPORTANT THAT YOU READ THIS SEC-
TION TO PROVIDE YEARS OF TROUBLE FREE USE. THIS UNIT
REQUIRES CAREFUL HANDLING.
All warnings on this equipment and in the operating instructions should
be adhered to and all operating instructions should be followed.
Do not use this equipment near water. Care should be taken so that
objects do not fall and liquids are not spilled into the unit through any
openings.
The power cord should be unplugged from the outlet when left unused
for a long period of time.
DO NOT ATTEMPT TO SERVICE THIS EQUIPMENT. THIS EQUIP-
MENT SHOULD BE SERVICED BY QUALIFIED PERSONNEL
ONLY. DO NOT MAKE ANY INTERNAL ADJUSTMENTS OR AD-
DITIONS TO THIS EQUIPMENT AT ANY TIME. DO NOT TAMPER
WITH INTERNAL ELECTRONIC COMPONENTS AT ANY TIME.
FAILURE TO FOLLOW THESE INSTRUCTIONS MAY VOID THE
WARRANTY OF THIS EQUIPMENT, AS WELL AS CAUSING
SHOCK HAZARD.
POWER REQUIREMENTS
This unit accepts power from the 9VAC adaptor supplied with the
unit. This 9 volt RMS AC voltage is internally processed by a voltage
doubler which generates a bipolar ±15 volts to maintain the headroom
and sound quality of professional, studio quality equipment. Using an
external power source such as this minimizes excessive noise and hum
problems often associated with internal transformers, providing optimal
performance for the user.
OPERATING TEMPERATURE
Do not expose this unit to excessive heat. This unit is designed to oper-
ate between 32° F and 104° F (0° C and 40° C). This unit may not func-
tion properly under extreme temperatures.

Introduction
ank you for purchasing the Rocktron WIDOWMAKER Guitar Preamp.
We’ve taken great care to produce this high gain monster that oers intense
distortion and powerful tone.
With over-the-top metal gain, our intended user for the WIDOWMAKER
is the modern metal guitarist, and those who rock on the very heavy side.
We feel the WIDOWMAKER is an outstanding choice for a two channel
analog preamp. is single rack space molten gain producing machine de-
livers the goods when it comes to high gain shred tone.
Controls include Level, Bass, MID, Treble and Gain in the HIGH GAIN
channel, and Level, Bass, Mid and Treble for the CLEAN channel, while
providing a wide range of tonal possibilities.
We know you will get your heavy on with the WIDOWMAKER and that
it will make a great addition to your guitar rig and provide years of great
tone. Unpack this machine, read the instructions carefully, get hooked up,
and prepare to experience the WIDOWMAKER. At Rocktron, we appreci-
ate awesome tone and quality gain, but most of all, we appreciate you…our
customer!

POWER ON/OFF SWITCH:
Use this switch to turn ON and OFF the WIDOWMAKER
POWER LED:
When lit, the unit is “on”
INPUT jack:
This standard 1/4” mono jack provides an input to the WIDOW-
MAKER from a guitar or other effect.
LEVEL control (High Gain Channel):
This control determines the output level of the High Gain channel,
independent of the clean channel output level.
BASS control (High Gain Channel):
This control is used to determine the amount of low frequency infor-
mation present in the High Gain channel, and is adjustable to +-15dB
MID control (High Gain Channel):
This control is used to determine the amount of mid frequency cut
in the High Gain channel. Up to 30dB of mid range cut may be ap-
plied.
TREBLE control (High Gain Channel):
This control is used to determine the amount of high frequency infor-
mation present in the High Gain channel, and is adjustable +-15dB
Front Panel
1
2
3
4
5
6
7

GAIN control (High Gain Channel):
This control is used to determine the amount of GAIN (distortion)
present in the High Gain channel.
CHANNEL switch/LED:
This switch is used to switch the WIDOWMAKER in and out of the
High Gain channel. When the LED is lit, the High Gain channel is
active.
LEVEL control (Clean Channel):
This control determines the output level of the Clean channel, inde-
pendent of the High Gain channel output level.
BASS control (Clean Channel):
This control is used to determine the amount of low frequency infor-
mation present in the clean channel, and is adjustable +-15dB
MID control (Clean channel):
This control is used to determine the amount of mid frequency infor-
mation present in the clean channel, and is adjustable +-15DB.
TREBLE control (Clean channel):
This control is used to determine the amount of high frequency infor-
mation present in the Clean channel, and is adjustable +-15dB
8
9
10
11
12
13
Front Panel....continued:

FOOTSWITCH jack:
This jack accepts a 1/4” mono cable connected to a single-function,
latching footswitch for channel switching functions.
OUTPUT jack:
This standard 1/4”mono jack provides the output of the WIDOW-
MAKER, which can be fed to an amplier or other effects.
POWER jack:
This 2.5mm pin jack accepts power from the 9VAC power adapter
supplied with the unit.
Back Panel
1
2
3

Connection 1

Connection 2

Connection 3

Rocktron -A Division of GHS Corporation
2813 Wilber Avenue
Battle Creek MI 49037
USA
Rocktron Phone: [phone]
Email: [email protected]
2014-0001
Rev. 6/11/14
www.rocktron.com
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