B-52 AT-100 Instruction Manual
CAUTIONCAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
IMPORTANT SAFETY
INSTRUCTIONS!
1) Read these instructions.
2) Follow all instructions.
3) Keep these instructions.
4) Heed all warnings.
DO NOT turn on the AT-100 without the
5)
loudspeaker connected.
6) Do not use the AT-100 near water. Be extra
cautious when moving the AT-100 during
rain or while transporting it over wet surfaces
as water might splash onto the amplifier.
6) Clean only with dry cloth.
7) Do not block any ventilation openings and
operate in accordance with manufacturer’s
instructions.
8) Do not install near heat sources such as
radiators, stoves or other devices that may
produce heat.
9) Do not defeat the safety purpose of the
polarization or grounding-type plug. A
polarized plug has two blades with one wider
than the other. A grounding-type plug has two
blades and a third grounding prong. The wide
blade or the third prong is provided for your
safety. If the provided plug does not fit your
outlet, consult an electrician for replacement
of the obsolete outlet.
10) Protect the power cord from being walked on
or pinched, particularly at the plug and the
point where it exits the AT-100 amplifier.
11) Only use attachments / accessories specified
by B-52 Professional.
12) Unplug the AT-100 during lightning storms
and when not in use.
13) Refer all servicing to qualified personnel.
Servicing is required when the AT-100 has
been damaged in any way such as when
power-cord or plug is damaged, liquid has
been spilled into the amplifier, the unit has
been exposed to moisture or rain, does not
operate normally, or has been dropped.
14) To reduce the risk of fire or electric shock, do
not expose the AT-100 to rain or moisture.
15) Moisture can damage the AT-100 and can
cause corrosion of electrical contacts.
16) Keep the unit out of extended or intense
direct sun light. No containers filled with any
type of liquid should be placed on or near the
AT-100.
Never remove the front or rear panels of
17)
the AT-100 while it is connected to an
electrical outlet.
INSIDE THIS INSTRUCTION MANUAL
Important Safety Instructions /
Features...............................................................2
Important Information ........................................3
AT-100 Controls ..................................................4-5
Set-up & Warranty Information .........................5-7
Contact Information ...........................................8
AT-100 FEATURES
This B-52 Stealth Series AT-100 has a 100% pure,
all-tube signal path, incredible tone and a wide array of
guitarist friendly features. It combines Russian Sovtek
6L6 power tubes with 12AX7 preamp tubes for solid tube
tone and classic breakup. This roadworthy head provides
serious musicians with monstrous gain, extreme levels of
distortion and a sparkling clean channel. Selectable solidstate or tube rectification through a Sovtek 5AR4 ensures
complete tonal authenticity.
●
1/4” High and Low Input Jacks
●
Overdrive channel with Gain1, Gain2, assignable Contour,
three band EQ and level controls
●
Clean Channel with Level control, 3 band EQ and Bright switch
●
Master section with Volume, Low-Resonance and
Reverb controls
●
Rugged footswitch for Channel Select, Gain Select, Reverb
on/off and Effects Loop on/off
●
Push switches for channel, gain select and Contour assign
●
Effects send and return with level controls
●
Line out with level control
●
Two speaker output jacks - selector switch for 4, 8 or 16 ohms
●
Ground lift switch
●
Rectifier select switch for: Tube A, Tube AB1 and
Solid-State
●
27” x 11” x 11” (W x H x D)
●
Weight: 52 lbs.
SOVTEK TUBE CHART
Power Tubes: 4 x 6L6
Preamp Tubes: 6 x 12AX7
Reverb Tube: 1 x 12AT7
Rectifier Tube: 1 x 5AR4
HEED ALL WARNINGS!
2
WARNING: To reduce the risk or fire or
electrical shock do not expose this
equipment to rain or moisture.
AT-100 100-WATT ALL-TUBE LEAD GUITAR AMPLIFIER!
Thank you for choosing the B-52 AT-100 amplifier.
This guitar amplifier is perfect for guitarists of every level. Whether you are playing to a
stadium crowd of 50,000 or practicing at home in your garage, the AT-100 will produce
awesome crunch, smooth mids and crystal-clean highs. It is also capable of producing
massive amounts of distortion, perfect for any style from blues to metal.
This instruction manual explains all that the AT-100 has to offer, how to operate and
control each feature so you can achieve the sound you desire. B-52
HIGHLY recommends
that you read this detailed instruction manual carefully and heed all warnings.
B-52 AT-Series Speaker Cabinets
(Recommended for use with AT-100)
AT-412A –480-Watt RMS speaker cabinet - Slant
AT-412B –480-Watt RMS speaker cabinet - Straight
The B-52 AT-412A and AT-412B, 4x12” slant and straight cabinets are a perfect complement to the AT-100 all-tube amplifier.
They offer awesome tone and incredible projection. With four
custom-built, 120-watt 12” speakers, these cabinets provide
crystal clear highs and heavy distortion with classic breakup.
AT-412A
FEATURES:
●
4 x 120-watt, custom built, heavy-duty speakers
●
Cloth-finished front
●
Rear porting for extended low-frequency response
●
Metal handles, rubber feet and metal corners
●
Detachable casters for easy transport
●
Authentic black vinyl finish
●
Baltic Birch Construction
●
Mono/Stereo Switchable
HEARING DAMAGE, PROLONGED EXPOSURE TO EXCESSIVE SPL
B-52 Stealth Series amplifiers and speakers, including the AT-100, are capable of producing sound pressure levels (SPL) sufficient to cause
permanent hearing damage to performers, production crews or people in the audience. Hearing protection devices such ear-plugs are recommended. Caution should be taken to avoid extended SPL is excess of 90 dBA.
AMPLIFIER MODULE PRECAUTIONS
Do not attempt to service the AT-100 by yourself. Refer all servicing to a B-52 Stealth Series Authorized dealer. Service is required when
the AT-100 has had liquid spilled on or inside the unit, has been damaged in any way, has been exposed to rain or moisture, does not operate normally or has been dropped.
WARNING – SHOCK HAZARD:
To reduce the risk of fire or electrical shock, do not expose this unit to rain or moisture. Do not operate your AT-100 near a pool or other
standing water. Make sure all blades on the polarized power plug are fully inserted into the power source. Ensure the power cord is not
stretched, pinched or otherwise abused. Ensure the power cord is routed to avoid foot traffic. Your AT-100 amplifier should be cleaned only
with a dry cloth.
AT-412B
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