US-SERIES US SERIES AMPLIFIERS THE BEAUTY OF POWER PROFESSIONAL POWER AMPLIFIERS POWER AMPLIFIER 13 15 12 11 10 9 8 PROTECT 7 17 6 5 19 4 22 3 29 54 2 0 BRIDGE 1 CHANNEL 1 CLIP POWER US-5000 PARALLEL PROTECT CLIP 13 15 12 11 10 9 8 7 6 5 17 -10dB -10dB 4 19 3 22 -20dB SIGNAL -20dB SIGNAL 29 54 2 0 1 CHANNEL 2 US-5000 US-6000 OWNERS MANUAL B-52 US Series Professional Power Amplifiers - Instruction Manual
US SERIES AMPLIFIERS THE BEAUTY OF POWER 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.........................................
THE BEAUTY OF POWER US SERIES AMPLIFIERS WELCOME TO THE B-52 FAMILY Thank you for purchasing a US-Series Professional Power Amplifier. At B-52, we believe in overbuilding all of our products and the US-Series Professional Power Amplifiers are no exception. We took our time in designing these stellar looking amps to outperform the competition on any stage, in the clubs and on the road.
US SERIES AMPLIFIERS THE BEAUTY OF POWER IMPORTANT INFORMATION Please keep this instruction manual for future reference and for the duration of owning your US-Series Professional Power Amplifier(s). Please carefully read and comprehend the instructions inside this manual before attempting to operate the amplifier. This instruction manual includes essential safety information regarding the use and maintenance of the US-Series Amplifier.
US SERIES AMPLIFIERS THE BEAUTY OF POWER IMPORTANT SAFETY PRECAUTIONS 1. Read Instructions – All the safety and operating instructions should be read before this product is operated. 2. Retain Instructions – The safety and operating instructions should be retained for future reference. 3. Heed Warnings – All warnings on the amplifier and in the operating instructions should be adhered to. 4. Follow Instructions – All operating and use instructions should be followed. 5.
US SERIES AMPLIFIERS THE BEAUTY OF POWER 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 B-52 US Series Professional Power Amplifiers - Instruction Manual
THE BEAUTY OF POWER US SERIES AMPLIFIERS AMPLIFIER FEATURES The latest additions to the industry-proven US-Series are two professional 3U heavy-duty power amplifiers for the most challenging applications. The US-5000 and US-6000 are built on a rugged, heavy gauge 3U 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.
US SERIES AMPLIFIERS THE BEAUTY OF POWER FRONT PANEL CONTROLS POWER AMPLIFIER 13 15 12 11 10 9 8 6 5 19 4 22 3 2 0 POWER PROTECT 7 17 29 54 BRIDGE 1 2 3 CLIP 13 15 12 11 10 9 8 7 6 5 17 -10dB -10dB 4 19 3 22 -20dB -20dB SIGNAL 29 54 SIGNAL 2 0 1 CHANNEL 2 Opposite page 1. Rack Mounting pointS Points to bolt your amplifier into a rack. 2.
THE BEAUTY OF POWER 6 7 8 9 10 7 6 US SERIES AMPLIFIERS 11 4 5 5 Reduce the output volume using the specific channel’s level controls until the clipping disappears or until the CLIP LEDs flash only occasionally. 7. PROTECT Indicators These yellow LEDs indicate that the channel is in either PROTECT mode or MUTE mode. When the channel goes into protect mode its output will turn OFF. This is to protect the speakers connected to that channel.
US SERIES AMPLIFIERS THE BEAUTY OF POWER 5 1 REAR PANEL CONTROLS 1. FanS Cooling fans with variable speed controls. Air enters the amplifier through vents located on the front aluminium panel. Do not block the front vents or the fans on the rear panel of the amplifier. 2. Input connectors Connect the input source to these electronically balanced Combo connectors using either XLR or 1/4” TRS plugs.
US SERIES AMPLIFIERS THE BEAUTY OF POWER 8 11 9 7 1 10 or 50Hz, based on the position of the switch. This improves the bass performance of most full range speakers (50Hz) and subwoofers (30Hz) by reducing uncontrolled and excessive speaker cone motion. Engaging the HPF switch when using full range speakers makes more power available to the speaker’s rated frequency range, leading to higher SPLs. Engaging 30Hz HPF with subwoofers helps to control cone excursion leading to cleaner and louder bass. 5.
US SERIES AMPLIFIERS THE BEAUTY OF POWER REAR PANEL CONTROLS (cont.) is not referenced to the ground. In this mode the channel 2 input is inactive. NOTE: See the CONNECTIONS section later in this manual for more details on PARALLEL MONO and BRIDGED MONO modes. WARNING: DO NOT change settings of the BRIDGE / STEREO / PARALLEL switch when amplifier is ON.
THE BEAUTY OF POWER and contact an authorized B-52 Service Center. There are rare instances when the circuit breaker acts on a constant heavy overload with a very low impedance load connected to amplifier, protecting your amplifier against such improper usage. In such cases you need to check and correct your load (loudspeakers) to provide for the proper load impedance, and/ or reduce output signal. 10.
US SERIES AMPLIFIERS THE BEAUTY OF POWER the front and do not block the fans on the rear panel. Make sure the open cell foam air filters behind the vents on the front of the amplifier are clean. If necessary, use a vacuum cleaner to clean these air filters. NOTE: If the air filters become too dirty, the amplifier may not operate normally as air circulating inside the amplifier may become too hot, thereby triggering the thermal protection.
THE BEAUTY OF POWER overloading. The limiter activates at “clipping” when the output voltage reaches the power supply voltage rails. Without limiters, the output voltage will grossly distort if the signal elevates beyond this point. The signal wave form is flattened (“clipped”), producing excessive high frequency distortion not present in the original signal.
US SERIES AMPLIFIERS THE BEAUTY OF POWER MODE SELECT: Stereo Mode In STEREO mode, both channels operate independently, with their respective input gain controls. Signal at the Channel 1 input produces output at Channel 1, while the signal at Channel 2 input produces output at Channel 2. The minimum load impedance for STEREO operation is 2 Ohms per channel. Parallel Mode When set to PARALLEL mode, a signal applied to Channel 1’s input will be amplified and appear at both of the Channel 1 and 2 outputs.
US SERIES AMPLIFIERS THE BEAUTY OF POWER CONNECTING YOUR SPEAKERS Stereo Mode Parallel Mode or or B _ + +_ B A _ + +_ B A 5-Way Output Binding Posts A or A Bridged Mono _ + or A 5-Way Output Binding Posts 5-Way Output Binding Posts A Bridged / Mono B-52 US Series Professional Power Amplifiers - Instruction Manual 17
US SERIES AMPLIFIERS THE BEAUTY OF POWER Stereo Mode _ + or B or A A B SPK+ to PIN 2+ SPK+ to PIN 1+ SPK- to PIN 2- SPK- to PIN 1- _ + _ + _ + A SPK+ to PIN 1+ SPK- to PIN 1- B SPK+ to PIN 1+ SPK- to PIN 1- Parallel Mode _ + or A A B SPK+ to PIN 2+ SPK+ to PIN 1+ SPK- to PIN 2- SPK- to PIN 1- _ + _ + B SPK+ to PIN 1+ SPK- to PIN 1- A SPK+ to PIN 1+ SPK- to PIN 1- Bridged Mono _ + or A 18 A SPK+ to PIN 1+ SPK- to PIN 2+ Bridged / Mono B-52 US Series Professional Power Amplifiers
THE BEAUTY OF POWER US SERIES AMPLIFIERS WIRING There are multiple ways to connect a US-Series amplifier to other audio equipment. The US-Series features balanced inputs and link outputs, which allows 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.
US SERIES AMPLIFIERS THE BEAUTY OF POWER HOW TO CLEAN THE AIR FILTERS It is important to 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.
THE BEAUTY OF POWER US SERIES AMPLIFIERS SPECIFICATIONS US-5000 US-6000 Rated Output Power Stereo Both ChannelS Driven @ 1kHz, 1%THD 8 Ohms 900 watts 1150 watts 4 Ohms 1500 watts 1900 watts 2 Ohms 2150 watts 2750 watts Rated Output Power Bridged Mono @ 1kHz, 1%THD 8 Ohms 3000 watts 3800 watts 4 Ohms 4300 watts 5500 watts Input Sensitivity 1.23 Vrms (+4 dBu) for full power @ 4 Ohms Input Impedance 30K ohms Balanced/15K ohms Unbalanced Frequency Response 0/-0.
US SERIES AMPLIFIERS THE BEAUTY OF POWER LIMITED WARRANTY Thank you for choosing the US-Series Professional Amplifiers, a product by E.T.I. Sound Systems, Inc. For purposes of this warranty B-52 shall mean E.T.I. Sound Systems, Inc. B-52 manufactures some of the world’s best audio products and takes great pride in thoroughly testing each B-52 product prior to shipment.
THE BEAUTY OF POWER US SERIES AMPLIFIERS NOTES B-52 US Series Professional Power Amplifiers - Instruction Manual 23
US SERIES AMPLIFIERS THE BEAUTY OF POWER B -52 B-52 PROFESSIONAL 3383 Gage Avenue, Huntington Park, CA 90255 Internet: www.B-52Pro.com Ph: 323-277-4100 Fax: 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.
