B-52 US-1200 Скачать руководство пользователя страница 21

B-52 US Series Professional Power Amplifiers  - Instruction Manual

THE BEAUTY OF POWER

US SERIES AMPLIFIERS

Thank you for choosing the US-Series Professional Amplifiers, a 

product by E.T.I. Sound Systems, Inc. For purposes of this war-

ranty B-52 shall mean E.T.I. Sound Systems, Inc. B-52 manufac-

tures some of the world’s best audio products and takes great 

pride in thoroughly testing each B-52 product prior to shipment. 

US-SeRIeS PROFeSSIONAl AMPlIFIeR  WARRANTy:

B-52 warrants to the original purchaser that this US-Series 

Professional Amplifier will be free from defects in material and 

workmanship for a period of (3) THREE YEARS  from the original 

purchase date. A dated sales receipt will establish coverage 

under this warranty. This warranty will automatically terminate 

(3) THREE YEARS after the original sales date. It is the owner’s 

responsibility to establish date and place of purchase by accep-

tance evidence at the time service is being sought.

ThIS (3) ThRee-yeAR

 warranty does not cover service or 

parts to repair damage caused by accident, disaster, misuse, 

abuse, wear and tear, subjecting the unit to power in excess of 

its published rating, damage due to lightning or power surges, if 

the serial # has been altered or removed, inadequate packing or 

shipping procedures and service, repair or modifications to the 

US-Series Professional Amplifier which has not been authorized 

or approved by B-52 in writing. Parts supplied under warranty 

may be new or rebuilt at the option of B-52. This warranty is in 

lieu of all other expressed warranties. If this product is defec-

tive in materials or workmanship as warranted above, your sole 

remedy shall be repair or replacement.

This is not a service contract and this warranty does not include 

maintenance, cleaning or periodic check-up.  B-52 reserves the 

right to make changes in design and/or improvements to its 

products without any obligation to include these changes in any 

products manufactured.

INCIdeNTAl OR CONSeqUeNTIAl dAMAgeS:

In no event shall B-52 be liable for any incidental or consequen-

tial damages arising out of the use or inability to use any B-52 

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 UNAUThORIZed deAleRS:  

If this product was purchased from an unauthorized dealer there 

are no warranties, express or implied, including the implied 

warranty of merchantability and the implied warranty of fitness 

for a particular purpose and this product is sold “as is” and 

“with all faults”.

ReTURN PROCedUReS:

In the event product repair is needed, follow the procedure out-

lined below. Contact B-52 (1-800-344-4ETI or 1-323-277-4100) 

from 8am to 4:30pm Pacific Standard Time, for the location of 

the authorized service center nearest you. Follow the service 

center’s instructions regarding return of the product. In some 

instances B-52 may request that you return the product directly to 

B-52 for service or repair. 

After speaking with a B-52 representative, you will be issued 

with a return authorization number (RAN) which you need to 

clearly label the returned merchandise with. If you are sending 

the product by common carrier, package it carefully and send 

it with transportation prepaid by traceable, insured method to 

B-52, or Authorized Service Center. Package the product using 

adequate padding material to prevent damage in transit.  The 

original packaging is ideal for this purpose. Include your name, 

address, RAN #, copy of your receipt and telephone number 

where you can be reached during business hours. 

FOR yOUR PROTeCTION:

Please complete and mail the Purchase Information Card within 

(10) ten days of the date of purchase so that we may contact 

you directly in the event a safety notification is issued in accor-

dance with the 1972 Consumer Product Safety Act. In addition, 

we ask that you complete the brief questionnaire so me may ana-

lyze your answers and in this way, help us evaluate our customer 

needs.

CUSTOMeR SeRVICe:

Our dedicated staff is ready to help you with any B-52 warranty 

or product questions you may have. Please call 323-277-4100 

(9:00AM to 4:00PM Pacific Standard Time, United States).

LIMITEd WARRANTY

21

Содержание US-1200

Страница 1: ...B 52 US Series Professional Power Amplifiers Instruction Manual THE BEAUTY OF POWER US SERIES AMPLIFIERS OWNERS MANUAL US SERIES PROFESSIONAL POWER AMPLIFIERS US 1200 US 1800 US 3000 US 4000 ...

Страница 2: ...FIERS 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 Specifications 20 Warranty 21 Notes 22 23 Contact Information 24 2 ...

Страница 3: ...ative 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 choosin...

Страница 4: ...oves 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 ...

Страница 5: ...en 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 instruct...

Страница 6: ...4000 Rated Output Power Stereo Both Channel Driven 8 Ohms 210 watts 300 watts 500 watts 700 watts 4 Ohms 330 watts 475 watts 800 watts 1100 watts 2 Ohms 430 watts 700 watts 1200 watts 1600 watts Rated Output Power Bridged Mono 8 Ohms 650 watts 950 watts 1600 watts 2200 watts 4 Ohms 850 watts 1400 watts 2400 watts 3200 watts Both channels driven 1kHz 1 THD 6 ...

Страница 7: ...avy 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 flexibility Front panel LED display POWER BRIDGE and PARALLEL LEDs and SIGNAL 20dB 10dB 0dB CLIP and PROTECT LEDs for eac...

Страница 8: ... 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 output power at a 4 Ohm load with 4dBu 1 23Vrms signal applied to the inputs All detents are marked in dBs showing the attenuation of the output signal with ref...

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: ...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 MONO or PARALLEL MONO use the Channel 1 input jack only 3 LINK connectors These XLR jacks are used to send a signal to a seper ate amplifi...

Страница 11: ...set to PARALLEL the input signal connected to channel 1 is routed to both channels The PARALLEL MONO mode is convenient when running a long mono signal cable to a remote power amplifier s and then connecting speakers to both of the channels in order to reproduce the same signal In PARALLEL mode the input of channel 2 is inactive and should not be used in this configuration In the BRIDGED position ...

Страница 12: ...r 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 amplifier in the BRIDGED mode NOTE Refer to the CONNECTIONS section later in this manual for speaker wire connection diagrams 8 Speakon output conn...

Страница 13: ...panel illuminate when the protection is active during the power up sequence when thermal protection is activated or when there is a malfunction When the PROTECT LEDs are ON the amplifier s outputs are muted Initial power up The protection circuitry will activate for about two to three seconds from the time you turn ON the amplifier The speaker outputs are muted during this period If the amplifier ...

Страница 14: ...verheated heatsinks Short circuit If the output is shorted because of faulty wiring the thermal circuitry will automatically protect the amplifier and mute the output 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 a...

Страница 15: ...oduce is limited by its power supply Attempting to output a voltage level that exceeds the power supply voltage rails results in a flattening effect of the signal causing 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 poss...

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 _ A 5 Way Output Binding Posts A or _ B _ A 5 Way Output Binding Posts A _ Bridged Mono 5 Way Output Binding Posts 17 or A ...

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

Страница 19: ...ows you to connect both balanced and unbalanced signals For speaker connections you can 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 19 UNBALANCED 1 4 CONNECTOR BALANCED 1 4 CONNECTOR SPEAKONTM OUTPUT CONNECTOR NOTE For connections of unbalanced sources via balanced cable...

Страница 20: ...rcuitry AB AB H H Cooling Continuosly variable speed fan front to rear Protection Short circuit thermal current limit dc offset AC current inrush RF protection subsonic turn on off muting Connectors Input Combo female XLR 1 4 TRS 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...

Страница 21: ...oduct 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 UNAUTH...

Страница 22: ...THE BEAUTY OF POWER B 52 US Series Professional Power Amplifiers Instruction Manual US SERIES AMPLIFIERS NOTES 22 ...

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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