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THE BEAUTY OF POWER

B-52 US Series Professional Power Amplifiers  - Instruction Manual

US SERIES AMPLIFIERS

CONTENTS

Introduction ................................................... 3

Warnings and Safety Instructions ..................... 4-5

Features ........................................................ 5

Power Ratings at a Glance .............................. 6

US-Series Features .......................................... 7

Front Panel Controls ....................................... 8-9

Rear Panel Controls ........................................ 10-13

Protection  ..................................................... 13-15

Setup ............................................................ 15-16

Connections  ................................................. 17-18

Wiring  ......................................................... 19

Cleaning the air filters .................................... 20

Specifications ................................................ 21

Warranty ...................................................... 22

Notes ........................................................... 23

Contact Information ........................................ 24

2

Содержание US-5000

Страница 1: ...FIERS OWNERS MANUAL POWER PROTECT CLIP 10dB 20dB SIGNAL PROTECT CLIP 10dB 20dB SIGNAL BRIDGE PARALLEL CHANNEL 1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 17 19 22 29 54 CHANNEL 2 0 1 2 3 4 5 6 7 8 9 10 11 12 13 15 17 19 22 29 54 POWER AMPLIFIER US 5000 US SERIES PROFESSIONAL POWER AMPLIFIERS US 5000 US 6000 ...

Страница 2: ...S Introduction 3 Warnings and Safety Instructions 4 5 Features 5 Power Ratings at a Glance 6 US Series Features 7 Front Panel Controls 8 9 Rear Panel Controls 10 13 Protection 13 15 Setup 15 16 Connections 17 18 Wiring 19 Cleaning the air filters 20 Specifications 21 Warranty 22 Notes 23 Contact Information 24 2 ...

Страница 3: ...tive that you read and understand all of the warnings in this manual regarding proper usage service and safety Failing to comply with any of these safety and operation warnings may void your warranty For more information about your US Series Amplifier log on to http www B 52Pro com or call our customer service support hotline toll free at 800 344 4384 or 1 323 277 4100 Thank you again for choosing...

Страница 4: ...ves or other devices that may produce heat 10 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 t...

Страница 5: ... damaged or B Objects have fallen or liquid has been spilled into the amplifier or C The amplifier has been exposed to rain or D The amplifier does not appear to operate normally or exhibits a marked change in performance or E The amplifier has been dropped or the chassis damaged 16 Servicing The user should not attempt any service to the amplifier beyond that described in the operating instructio...

Страница 6: ...ERS POWER RATINGS AT A GLANCE US 5000 US 6000 Rated Output Power Stereo Both ChannelS Driven 8 Ohms 900 watts 1150 watts 4 Ohms 1500 watts 1900 watts 2 Ohms 2150 watts 2750 watts Rated Output Power Bridged Mono 8 Ohms 3000 watts 3800 watts 4 Ohms 4300 watts 5500 watts Both channels driven 1kHz 1 THD 6 ...

Страница 7: ...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 flexibility 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 ...

Страница 8: ...Channel 1 and channel 2 LEVEL controls Use these 21 position detented controls to adjust the output levels of Channel 1 and Channel 2 When the LEVEL controls are set fully counter clockwise the signal is attenuated by more than 80dB marked When the LEVEL controls are set fully clockwise the signal is amplified with maximum gain When the LEVEL is set fully clockwise the amplifier produces its rated...

Страница 9: ...s indicates your amplifier is going through a transition process and the outputs are muted WARNING If the PROTECT LEDs illuminate constantly and don t turn OFF even when the speakers are physically disconnected from the amplifier s outputs this indicates a fault Immediately turn the amplifier OFF disconnect the power cord from the AC outlet and refer the amplifier to service personnel Authorized B...

Страница 10: ...A stereo signal should be connected to both the Channel 1 and Channel 2 input jacks for 2 channel stereo operation NOTE Unbalanced two conductor 1 4 plugs can also be inserted into these input Combo connectors But using unbalanced connectors may increase noise and hum See more information about balanced and unbalanced connections in the CONNECTIONS section later in this manual NOTE For BRIDGED MON...

Страница 11: ...ce the amount of distortion and stress on your speakers and amplifier It is recommended to keep these switches in the ON position as this will result in better sound and increase the life of your loudspeakers 6 BRIDGE STEREO PARALLEL switch Use this switch to change the amplifier s operating mode to STEREO BRIDGED MONO or PARALLEL MONO Set this switch to the STEREO position for normal stereo or 2 ...

Страница 12: ...d to the Channel 2 red post as indicated on the rear panel just below the binding posts WARNING NEVER CONNECT speakers with an impedance lower than the rated minimum impedance of the amplifier The lowest impedance in STEREO and PARALLEL modes is 2 Ohms for each channel The lowest impedance in BRIDGED mode is 4 Ohms NEVER CONNECT 2 Ohms rated loudspeaker s or a combination of speakers to the amplif...

Страница 13: ...hermal protection circuitry if the air access is not blocked and the air filters are clean 2 Ohms speaker loads per channel 4 Ohms in BRIDGE mode can cause the thermal protection circuitry to activate occasionally If this occurs decrease the signal level and consider reconnecting the speaker connections to reduce the load on the amplifier for example do not connect too many speakers in parallel to...

Страница 14: ...signals If this occurs the load will disconnect Check and cor rect the short wire condition DC Voltage Protection If an amplifier chan nel detects a DC voltage at the loudspeaker output the protection circuitry will trigger and the amplifier will go into protection mode In normal conditions there should not be a significant DC signal on the am plifier outputs DC on the outputs indicates a serious ...

Страница 15: ...sing it to clip A clipped waveform exhibits severe distor tions making it sound harsh The clip limiter detects this condition and reduces the gain to minimize the amount of overdrive To preserve as much of the program dynamics as pos sible the limiter reduces the average program level until the peaks barely clip Each chan nel has its own clip limiter and you can switch it ON or OFF The clip limite...

Страница 16: ... and the other channel pulls the signal equally doubling the voltage When the voltage is doubled the power is quadrupled if the same impedance load is used In a BRIDGE mode the signal must be applied to Channel 1 s input only and Channel 1 s gain control is used to adjust the signal level The gain control of Channel 2 is not used and input 2 is inactive in BRIDGE mode NOTE Minimum load impedance i...

Страница 17: ...tion Manual THE BEAUTY OF POWER US SERIES AMPLIFIERS CONNECTING YOUR SPEAKERS Stereo Mode Parallel Mode Bridged Mono A or B or _ _ B B _ _ _ A A A 5 Way Output Binding Posts A or 5 Way Output Binding Posts A Bridged Mono 5 Way Output Binding Posts 17 or ...

Страница 18: ...l Mode Bridged Mono A A or or B or _ _ B B _ _ A A SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 _ _ B B _ _ A A SPK to PIN 2 SPK to PIN 2 SPK to PIN 2 SPK to PIN 2 SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 SPK to PIN 1 A A or _ Bridged Mono SPK to PIN 1 SPK to PIN 2 18 ...

Страница 19: ...n use either binding posts or Speakon connectors NOTE Use speaker wires with the lowest gauge available The thicker the speaker wires are the less output signal you will lose You have chosen US amplifiers that supply very high power to your loudspeakers and you don t want to sacrifice your system s performance by using inadequate speaker cables 19 UNBALANCED 1 4 CONNECTOR BALANCED 1 4 CONNECTOR SP...

Страница 20: ...o keep the US 5000 and US 6000 air filters clean and maintained to ensure the amplifiers operate at maximum efficiency 1 To remove the air filters simply slide them out using your finger 2 Open the filter covers as per below and clean the filter using a damp cloth 3 Reassemble the filter covers and return them to the slots on either side of the amplifier ...

Страница 21: ... DC offset RF protection AC soft start with inrush current limit turn on off muting Connectors Input Combo female XLR 1 4 phone jack Link Male XLR Output Both 5 way biding post and SpeakonTM Controls Front Power on off switch volume controls for each channel Rear Mode switch stereo parallel bridge HPF 30Hz 50Hz Off Limiter on off LED STRIPS on dim off Indicator Power parallel bridge Each channel S...

Страница 22: ... product even if B 52 or a B 52 dealer has been advised of the possibility of such damages or any other claim by any other party Some States do not allow the exclusion or limitation of consequential damages so the above limitation and exclusion may not apply to you This warranty gives you specific legal rights and you may also have other rights that may vary from State to State PURCHASING FROM UNA...

Страница 23: ...B 52 US Series Professional Power Amplifiers Instruction Manual THE BEAUTY OF POWER US SERIES AMPLIFIERS 23 NOTES ...

Страница 24: ... 323 277 4108 Toll Free 800 344 4384 B 52 Professional is dedicated to product excellence and therefore continuously attempts to improve each and every model we manufacture This ongoing process includes refinements in design materials and workmanship which may result in products which differ than those described in our literature All features specifications prices and terms are subject to change w...

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