B-52 US-3000 - Amplifier Features

B-52 US Series Professional Power Amplifiers - Instruction Manual
THE BEAUTY OF POWER
US SERIES AMPLIFIERS
AMPLIFIER FEATURES
The US-Series features four professional heavy-duty power amplifiers, covering a wide range of
output power ratings. The models are US-1200, US-1800, US-3000 and US-4000. US-Series
amplifiers are built on a rugged, heavy gauge steel chassis with a sturdy aluminum front panel.
The amplifiers use advanced circuitry and a well-designed PCB layout to ensure quality sound
and enhanced reliability. Large aluminum heatsinks and an oversized toroidal transformer, com-
bined with comprehensive protection circuitry and variable speed fan(s) provide worry-free and
reliable operation in the most demanding environments.
• Compactsize-upto3200wattsintworackspaces
• Ruggedheavygaugesteelenclosurewithsturdyaluminumfrontpanelforstability
and increased longevity
• High-currenttoroidaltransformersforincreased2-ohmpoweroutput
• 21-positiongaincontrolknobsforconsistentsettings
• SelectableSTEREO,PARALLELMONOandBRIDGEDMONOmodesforexibility
• FrontpanelLEDdisplay:POWER,BRIDGEandPARALLELLEDsandSIGNAL,-20dB,-10dB,
 0dB,CLIPandPROTECTLEDsforeachchannel
• Protection:Shortcircuit,outputcurrentlimiting,thermal,DCoffset,turnon/offmuting,
RF protection and circuit breaker
• Cliplimiterstoreducedistortionwithoutsacricingpeakperformance(defeatableon
 US-3000/US-4000)
• Sub-soniclterstoprotectspeakersandincreaseheadroom(defeatable)
• BalancedcomboXLRand1/4”TRSinputconnectorsandlinkXLRoutputconnectors
• BothbindingpostsandSpeakon™outputconnectors
• Low-noisecoolingfanswithcontinuousvariablespeedandhighlyefcientfront-to-rear
forced air cooling design
• Replaceableopencellfoamairlters
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