C H 1 LE VE L POWER STEREO M IN MO N O PROTECT OFF MA X C H 1 LE VE L C H 1 LE V E L M IN 2 C H A N N E L S /5 0 0 W A T T S P R O F E S S I O N A L A M P L I F I E R PROTECT M IN BR ID G E PO W ER STE R E O P R O TE C T O FF MA X USB 7133 2 C H A N N E L S /5 0 0 W A T T S P R O F E S S I O N A L A M P L I F I E R C H 2 LE V E L ON MAX USB 7132 C H 2 LE VE L OFF MA X MA X POWER STEREO MO N O M IN ON B R ID G E M IN C H 2 LE VE L ON B R ID G E M IN MAX MO NO USB 7134
USB 7132 / 7133 / 7134 Professional Power Amplifier INTRODUCTION Front Panel Rear Panel These series of amplifiers are high performance professional power amplifiers, USB 7132/7133 amplifiers are housed in the same size 1U cases while USB 7134 is in 2U cases. comes with features of light, All amplifiers come with powerful supplies along with massive heat-sinks and cooling fans.
USB 7132 / 7133 / 7134 Professional Power Amplifier MOUNTING Dimension: 482.5mm(19.0 inch) wide (Including mounting ear), 44mm(1.7 inch)high for USB 7132/7133, 88.8mm(3.5 inch) high for USB 7134 487.7mm (19.2 inch) deep(for USB 7132/7133/7134 Including protruding adjusting knob & rear hookup). Mounting & unit dimensions brackets and rear mounting plates must be fitted. These are available from your dealer. Damage caused by insufficient support is not covered by the warranty.
USB 7132 / 7133 / 7134 Professional Power Amplifier WARNING! THIS APPLIANCE MUST BE GROUNDED. The amplifier must always be connected to a 3-wire grounded AC outlet. The rack framework must also be connected to the same grounding circuit. The unit must NOT be operated unless the power cables' ground wire is properly terminated - this is important for personal safety as well as for proper control over the system grounding. IMPORTANT! The US Blaster amplifiers are designed to use 50Hz AC power.
USB 7132 / 7133 / 7134 Professional Power Amplifier FEATURES 1. Rack Mounting Ears Two front-panel mounting holes are provided on each mounting ear. 2. Channel Level Attenuator for CH 1 The input attenuator adjusts level for CH 1. In bridged mono the channel 1 attenuator , controls overall signal level. 3. Channel Level Attenuator for CH 2 The input attenuator adjusts level for CH 2. In bridged mono , the channel 1 attenuator controls overall signal level. 4.
USB 7132 / 7133 / 7134 Professional Power Amplifier REAR PANEL 1. Fan The fan operates continuously while the amp is on. An internal temperature sensor increases the speed of the fan during high temperature conditions. Air enters through the rear of the amp and exits through the front grill. Be sure to allow adequate air flow from the rear of the rack where the amp is mounted on. 2. Mode Selector Switch The two-position mode switch configures the amplifier for. Stereo or Bridged Mono operation.
USB 7132 / 7133 / 7134 Professional Power Amplifier OPERATION MODES Choosing the appropriate mode Special consideration when using Bridged mode Stereo Bridged Mode Selection The two -position Mode Select switch (located on the rear panel) configures the amplifier for Stereo or Bridged mode. Amplifiers are factory-configured for Stereo mode. Shut the amp off before changing modes. Stereo In Stereo mode, each channel operate independently, with their input attenuator controlling their respective levels.
USB 7132 / 7133 / 7134 Professional Power Amplifier CONNECTIONS Female XLR 1. Ground 2. Negative 3. Positive Female XLR Very high current is available at the outputs. Tip - positive Ring - negative Sleeve - Ground Please connect your output cable to the + and - terminals of each section precisely as shown. Outputs Speakers are connected using the high-current rive-way binding posts or speakon connectors, or both.
USB 7132 / 7133 / 7134 Professional Power Amplifier INPUTS For each channel, there is a 1/4 phone jack socket and female XLR socket provided for signal input on the rear panel of the amplifier. Each is electronically balanced at an impedance greater than 20k ohms. The phone jacks and XLR connectors are internally wired in parallel, and therefore either socket may be used for the input signal. The HOT, +, or in phase connection is to pin 2 of the XLRs and the TIP of the phone jacks.
USB 7132 / 7133 / 7134 Professional Power Amplifier OUTPUT Stereo mode Output binding post connection Bridged mono mode Output binding post connection Note : if single channel input , it can also work , but the input sensitivity will be 1.4 times lower than that of both channel inputs .
USB 7132 / 7133 / 7134 Professional Power Amplifier SAFETY INFORMATION 1) Read these instructions and keep it in a handy place for future reference. 2) Be sure to follow all instructions and heed all warnings 3) Clean only with a dry cloth. 4) Do not block any ventilation openings. Install in accordance with the manufacturer's instructions. 5) Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus that produce heat.
USB 7132 / 7133 / 7134 Professional Power Amplifier CALCULATING IMPEDANCE Measured in ohms, impedance is a measure of AC resistance. Loudspeakers generally come in 16, 8 or 4 ohm varieties. Amplifiers have a low limit to what impedance they can drive without being overloaded, there is not usually an upper limit. The PA series can drive any impedance between an open circuit and no less than 2 ohms when in stereo and between an open circuit and no less than 4 ohms when bridged.
USB 7132 / 7133 / 7134 Professional Power Amplifier USER RESPONSIBILITY Your PA600/800/1400 series amplifier is very powerful and can be potentially dangerous to loudspeakers and operators alike. It is your responsibility to read important precautions and make sure that the amplifier is installed, wired, and operated properly as instructed in this manual. Many loudspeakers can be easily damaged or destroyed by overpowering, especially with the high power available from a bridged amplifier.
