B-52 AT112 User Manual
2
INSIDE THIS INSTRUCTION MANUAL
Important Safety Instructions / Features .....2
Product Information .......................................3
AT-112 Controls ..............................................4-5
Warranty Information .....................................5-7
Contact Information .......................................8
HEED ALL WARNINGS!
WARNING: To reduce the risk or fire or
electrical shock do not expose this
equipment to rain or moisture.
1) Read these instructions.
2) Follow all instructions.
3) Keep these instructions.
4) Heed all warnings.
5) DO NOT turn on the AT-112 without the
loudspeaker connected.
6) Do not use the AT-112 near water. Be extra
cautious when moving the AT-112 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-112 amplifier.
11) Only use attachments / accessories specified
by B-52 Professional.
12) Unplug the AT-112 during lightning storms
and when not in use.
13) Refer all servicing to qualified personnel.
Servicing is required when the AT-112 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-112 to rain or moisture.
15) Moisture can damage the AT-112 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-112.
17) Never remove the front or rear panels of
the AT-112 while it is connected to an
electrical outlet.
IMPORTANT SAFETY
INSTRUCTIONS!
This AT-112 is a 2 channel, all-tube combo that gives
you unparalleled tone and astounding versatility. The
clean channel yields sparkling vintage tone that stays
clean even at high volume. The overdrive channel
unleashes a modern high gain assault seldom found in
a compact combo. The contour (mid-scoop) control
gives you astounding control over the all important
midrange. The Global section features Low-Res
(Resonance) and Reverb controls.
l All-Tube preamp/poweramp signal path
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Overdrive Channel: Gain and Master controls, 3 band EQ
and Contour.
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Clean Channel: Master Volume with 3-Band EQ.
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Global Controls: Low-Res (Resonance) and Reverb
l
Effects Loop with Level Controls
l
Line Out with Level Control
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Selectable 4 / 8 / 16 Ohms External Speaker Jacks
l 2-Position Footswitch: Channel Select and Reverb.
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Rugged 18mm Baltic birch construction
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Detachable casters for easy transport
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Dimensions: 22.5” (W) x 19.5” (H) x 11” (D)
l
Weight: 40lbs.
AT-112 ALL-TUBE COMBO
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AT-112 TUBES
Power amp: 2 x 6L6 / 5881
1 x 12AX7
Preamp Tubes: 4 x 12AX7
HEARING DAMAGE, PROLONGED EXPOSURE TO EXCESSIVE SPL
B-52 Professional amplifiers and speakers, including the AT-112, 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.
PRECAUTIONS
Do not attempt to service the AT-112 by yourself. Refer all servicing to a B-52 Authorized service dealer. Service is required when the
AT-112 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-112 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-112 amplifier should be cleaned only
with a dry cloth.
AT-112 60-WATT ALL-TUBE 12” COMBO!
THANK YOU FOR CHOOSING THE B-52 PROFESSIONAL AT-112 COMBO!
The AT-112 is a straight forward, all-tube powerhouse with 60 relentless watts ripping
through a custom-built B-52 - 12” loudspeaker. The AT-112's foundation is outstanding tone,
versatility and power. Each channel - Clean and Overdrive - has its own set of gain, treble,
mid and bass equalization controls for maximum flexibility.
The Clean Channel offers a broad palette of classic and modern tones. The Overdrive
Channel features a wide range of tones ranging from bluesy grit to all out metallic shred.
The contour control “scoops” the all important mids, effectively producing the ultimate metal
tone or, when turned up, creates the warm, full bodied tones of the great classic amps.
The AT-112 also features solid Baltic birch construction and a two function heavy-duty
footswitch.
Power Handling: 120 watts
Freq. Response: 50-5K Hz
Nominal Impedance: 8 Ohms
Voice Coil Diameter: 2.5”
CUSTOM B-52 TRANSDUCER
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