Suhr Rufus User manual

RUFUS

USER GUIDE

™

OVERVIEW

Rufus is a unique fuzz pedal designed to offer a wealth of fuzz tone effects with

the dynamics and tactile response of a tube amplier. Whether your tastes are for

the historic tones created at The Fillmore East back in ‘69, or you crave the more

aggressive, mid-scooped characteristics of the Grunge-era, Rufus has you covered,

and then some.

EXCLUSIVE FEATURES

• Silicon Transistors

• 3-Band Eq

• mf(x) Multi-Function Technology

• FX Link

• True Bypass Switching

GETTING CONNECTED

INPUT: Connect this jack to the output of your instrument or effects device. Unlike

traditional fuzz pedals, Rufus’ input was optimized to accept the output of a buffered

device such as a tuner or other pedal effects without sacricing the interaction between

your instrument and Rufus.

Note: Connecting a cable to the input jack will power up the pedal. If using the internal

battery, remember to unplug your cable from the input jack when you are nished

playing in order to conserve battery life.

OUTPUT: Connect this jack to the input of an amplier or another effect device.

POWER REQUIREMENTS

Rufus can be powered via 9V battery or 9VDC, center negative power supply.

BATTERY MONITOR

Upon powering up, the battery voltage is measured. If the voltage measured is lower

than 5.5V, Rufus LED will ash 3 times to alert you that it’s time to replace the battery.

Once the 9V battery is replaced, normal operation will resume. Should a battery fail

completely (<5V), Rufus will switch itself into True Bypass mode and the LED will

begin to ash. This feature ensures that your signal will continue uninterrupted and

undistorted until you can replace the battery with a new one.

Note: The LED ash can be defeated by pressing the footswitch to turn it off.

Thank you for purchasing the Suhr Rufus™. Please take the time to read through this guide to familiarize yourself with its many features

and applications.

OPERATIONS

Rufus features an easy to tweak control layout which includes: Fuzz, Level, Bass, Mid,

rotary controls and a three position Treble switch.

FUZZ: Adjusts the amount of Fuzz/Gain applied to your signal.

• At lower settings, (0 - 3) Rufus produces a thick, subtle break-up effect with

excellent top-end denition. This setting is ideal for pushing a clean amplier

into crunch territory and for playing a variety of Blues and Rock rhythm styles.

• At medium settings, (4 - 6) Rufus offers increased sustain and harmonics

with greater dynamic response when using your instrument's volume control.

Use this setting to dial in iconic tones of the late 60’s British Blues/Rock era.

• At higher settings (7 - 10), Rufus produces a cacophonous array of over

the top fuzz effects that are expressive and fun to play. Use these settings

to channel 60’s Psychedelic Blues, 70’s Classic Rock and 90’s Grunge-era

tones.

LEVEL: Adjusts the overall output level of Rufus. Use this control to compensate

between your amplier and Rufus when placed into your signal path.

BASS: Adjusts the amount of bass applied to the fuzz effect.

MID (Midrange): Adjusts the amount of midrange applied to the fuzz effect.

TREBLE SWITCH: This switch offers the following three position settings:

• Left - Cuts the amount of high frequencies for a warmer tone. Use this

position to dial in a smooth violin-like tone for solos or warm rhythm textures.

• Middle - Offers a atter more neutral response than those to the left or right,

allowing a broader range of midrange and treble frequencies to come through

for a classic 70’s fuzz effect.

• Right - Boosts the amount of high frequencies for more attack and bite. This

position is very effective when dialing in scooped, Grunge-era fuzz tones.

On/Off Effects Status Indicator: The LED indicator displays Rufus’ effect status, on/off.

TRUE BYPASS SWITCHING

Rufus employs True Bypass switching (via relay) which removes the effect from the signal

chain.

OPERATIONS (continued)

= MULTI-FUNCTION TECHNOLOGY

Created to enhance your overall playing experience, we developed Multi-Function Technology

(mf(x)). mf(x) is a proprietary footswitch technology that enables you to seamlessly select between

Rufus’ two distinct user modes, Green (NORMAL) or Red (FAT) during a performance by simply

holding down the foot switch.

NOTE: Rufus has built in memory to recall the last mode of operation.

mf(x) MODES

• Green (NORMAL) - Voiced to offer a wide range of classic silicon infused fuzz with the

response and dynamic range of a great distortion pedal or tube amplier.

• Red (FAT) - Voiced for increased low-end, which offers a spongier feel while fattening

up your tone.

EXTERNAL / REMOTE SWITCHING

FX LINK (See Diagram)

Rufus features proprietary FX Link technology which offers players the ability to externally control

Rufus' bypass and operating modes in real-time via an external footswitch or control function

switching device.

MODES

FX Link consists of the following two modes:

Green* (default) - Use this mode if you have an external switching system to remotely control your

effects.

TIP - On/Off (Normal) Latching

RING - On/Off (FAT) Latching

*If the serial number of your Rufus is below 633, the Green FX Link mode (default) is not indicated

by a green LED.

Orange - Use this mode to remotely toggle between Rufus’ two mf(x) modes via a single momentary

footswitch. The use of this mode does not impact the functionality of the built in footswitch.

TIP - Normal/Fat Toggle Unlatching

FX LINK SWITCH ILLUSTRATION

Right: Rufus will power up in the ON state.

Center: Rufus can be switched remotely via the FX Link jack. In this

position Rufus’ state will be dictated by the status of the footswitch

connected to the jack. If the FX Link jack is not utilized, Rufus will power

up in the Bypass state.

Left: Rufus will power up in the Bypass state.

CHANGING FX LINK MODE / POWER UP PROCEDURE

Rufus is shipped by default in Green mode. To change FX LINK modes,

press and hold the footswitch while powering up Rufus. The LED will

illuminate (orange/green) temporarily to indicate the FX LINK mode. To

return Rufus to the previous FX LINK mode please repeat the previous

power up procedure.

NOTE: If using a battery to power Rufus, you will need to unplug the

cable from the input jack. While holding down the footswitch, plug in the

cable to change the FX LINK mode.

CenterLeft Right

SAMPLE SETTINGS

CRUNCH FUZZ FAT FUZZ SCOOPED FUZZ FILLMORE EAST

Unlike many traditional fuzz pedals,

Rufus can be effectively used at

lower settings to push the front-end

of a cleanish amplier into a dynamic

rhythm crunch tone.

Dial in this setting using your guitar’s

bridge pickup for a chunky low gain

fuzz tone that works well for playing

Classic Rock style rhythms.

In this setting Rufus offers scooped

Alternative/Grunge-era fuzz tones

with a fat low-end, harmonious sustain

and enough top-end to cut through the

sludge.

To channel fuzz tones reminiscent

to those created on the eve of 1970

at The Fillmore East, just plug your

favorite single-coil instrument into

Rufus and get ready to experience

an iconic sound that responds

dynamically to your hands and your

instrument's volume control.

WARRANTY FOR SUHR AMPLIFIERS AND ELECTRONIC PRODUCTS

JST warrants for lifetime from date of purchase by the initial retail purchaser that this product shall be free from defects in workmanship. Electronic components such as capacitors,

resistors, lters, transformers, jacks, and pots are covered for 5 years. Any parts determined defective by JST within the ve (5) year term shall be repaired or replaced by JST without

charge for parts and labor provided the unit is returned, transportation costs prepaid, to JS Technologies, Inc., 601 Crane Street, Unit A & B, Lake Elsinore, CA 92530, or to such facility

authorized by JST. JST will pay shipping costs to return the unit to its owner. Defects in workmanship will be determined by JST for limited lifetime coverage.

This warranty does not cover damage caused by accident, misuse, abuse, neglect, unauthorized or improperly performed repairs, alterations, and/or wear and tear occasioned by use

of the product, and does not include any expense for inconvenience or loss of use while the product is being repaired or replaced. JST expressly disclaims any liability for consequential

damages arising from the sale, use, or inability to use the product. Any warranty implied by law, including any warranty of merchantability or tness, is expressly limited to the one (5)

year warranty term for the parts on our ampliers and electronic products. The foregoing statements of warranty are exclusive and in lieu of all other remedies. Workmanship lifetime

warranty is limited strictly to the original retail purchase of the instrument registered with JST within 10 days of purchase from an authorized JST dealer or distributor. JST will pay

shipping costs to return the unit to its owner within the mainland U.S.

The above warranty policy only applies to customers in USA. If you are an international customer, please check with your distributor and the dealer in your country for warranty

matters. Warranty issues must be handled through your dealer or distributor. If you are an international customer who purchased (or plan to purchase) from a US dealer, we can handle

warranty matters direct but you will be responsible for shipping both ways. We encourage international customers to purchase through your local distributor or dealer for this reason.

Our international distributors are setup to handle warranty issues in their respective countries. If you do not have an authorized Suhr dealer in your country, please contact us direct

for further details.

Rev:080514

SPECIFICATIONS*

Input Impedance: 5k ohm

Output Impedance: 10k ohm

Power Connector: 2.1mm x 5.5mm, center negative

Operating Voltage: 9Vdc

Maximum Voltage: 18Vdc

Reverse Battery Protection: Yes

Over Voltage Protection: Yes

Current Consumption: 9mA

Estimated Battery Life: Approximately 60 hours