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AT-212 TUBES
Power Tubes: 4 x 6L6 / 5881
Preamp Tubes: 4 x 12AX7
Reverb Tube: 1 x 12AX7
Rectifier Tube: 1 x 5AR4
Effects Loop: 1 x 12AX7
Phase Inverter: 1 x 12AX7
HEARING DAMAGE, PROLONGED EXPOSURE TO EXCESSIVE SPL
B-52 Professional amplifiers and speakers, including the AT-212, 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 rec-
ommended. Caution should be taken to avoid extended SPL is excess of 90 dBA.
AMPLIFIER MODULE PRECAUTIONS
Do not attempt to service the AT-212 by yourself. Refer all servicing to a B-52 Stealth Series Authorized dealer. Service is required when
the AT-212 has had liquid spilled on or inside the unit, has been damaged in any way, has been exposed to rain or moisture, does not oper-
ate 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-212 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-212 amplifier should be cleaned only
with a dry cloth.
AT-212 100-WATT ALL-TUBE 2x12” COMBO!
THANK YOU FOR CHOOSING THE B-52 PROFESSIONALAT-212 COMBO! The B-52 AT-212 is a
feature-laden all-tube 2 x 12” open-backed combo with 100 relentless watts ripping through two
custom-built B-52 loudspeakers. The AT-212'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 goes from classic sparkle to serious crunch while the Overdrive Channel
features two independent gain options. Gain 1 moves from bluesy grit all the way to metallic shred.
Gain 2 takes over where Gain 1 leaves off for the most intense gain ever.. The assignable contour
control “scoops” the all important mids, effectively producing the ultimate metal tone or, when switched
out, creates the warm, full bodied tones of the great classic amps. A three position rectifier switch
adds even more versatility, offering Tube ClassAB1, Tube Class A and Solid State settings.
The AT-212 also features solid Baltic birch construction,detachable casters and a four function
heavy-duty footswitch.
Power Handling: 120 watts
Freq. Response: 50-5K Hz
Nominal Impedance: 16 Ohms
Voice Coil Diameter: 2.5”
CUSTOM B-52 TRANSDUCER