Suhr Badger 18 User manual

Badger 18

USER MANUAL

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Badger 30

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Badger 35

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This all-tube ampliﬁer offers a wide range of classic guitar sounds. Driven by a cathode biased EL-84 power section and features a 5Y3GT tube rectiﬁer, the Badger 18

delivers a variety of warm, sparkling cleans and rich, dynamic overdrive tones.

The newly designed preamp section includes a high-voltage cascaded MOSFET Boost (footswitchable) to offer a broader range of cleaner and overdriven tones with

increased dynamic range, transparency and tactile responsiveness.!

Whether playing a large stage, small club or your home studio, Badger’s Power Scaling feature provides added ﬂexibility. This makes it easy to dial in your ideal tone at

any volume - from loud and cranked, all the way down to one watt.

The Suhr Badger

Drive:

Feeds the input to the power section. With Power at 10 it acts as a

master volume. As a rule of thumb, when you turn down the Power

always set the Drive control within 2 numbers of the Power setting. If

you set the drive lower than the power it will sound brighter, like a

"master volume" amp.

Boost:

This switch engages a high-voltage cascaded MOSFET Boost resulting

in overdriven tones with increased dynamic range, transparency and

tactile responsiveness. This Boost is also foot-switchable.

Note: Keeping the Drive within 2 numbers of the Power setting will

retain the natural amp overdrive characteristics all the way down to 1

watt.

WARNING: Setting the Drive control more than 2 numbers higher than

the Power setting will cause the output section to clip beyond what is

typical and may produce artifacts and compression that the user may

or may not find appealing.

Power:

Power Scaling emulates the tonal response of a high wattage

amp on 10, at manageable volumes. Power controls the voltage

that feeds the output section and in turn, the wattage. As you

lower the voltage of the power section you are reducing the

amount of signal it can handle before clipping the output section.

To compensate for this we use the "Drive" control so you can

easily scale down to 1 watt without losing tone & feel.

Tone controls:

Bass, Middle and Treble tone controls for each channel are post-

gain and passive cut-style. We recommend starting around 5

and dialing to taste. As you increase Gain and/or Drive we

recommend dialing back the Bass to retain clarity and definition

in the low-end.

Gain:

Controls the amount of preamp gain by controlling 2 cascading

gain stages simultaneously to drive the input stage.

ON/OFF:

To power up the Badger 18, flip

the ON/OFF select switch to the

ON position. To power down,

simply switch the power switch

to the OFF position.

Tube-Buffered Effects Loop: Performs equally well with pedals and

line-level rack gear. For best results ensure that the effects unit is

set to unity gain.

Speaker Outputs: 2 parallel speaker outputs!

Impedance Selector: Rotate to match the impedance of your

cabinet.

A.C. Fuse: This fuse is connected to the AC primary side of

the Power Transformer.

1.25A/250V Slo-Blo (100v/120v)

.750A/250V Slo-Blo (220v/230v/240v)

CAUTION - Never use a fuse with a higher amperage rating.

Boost Footswitch: MOSFET Boost feature can be accessed

remotely via a standard latching/On/Off style foot switch or control

ruction device.

Please note: Connecting this jack to an external switching source

will override Badgers Boost Switch located on the front panel.

Tubes: The Badger 18, 30 and 35 have slightly different tube compliments (See Page 6)

*When replacing the rectifier tube, we require you change it with a new 5Y3GT. Using the 5Y3GT will ensure your Badger’s internal voltages operate properly.