User manual ELECTRO-VOICE 1750

[. . . ] Security regulations as stated in the EN 60065 (VDE 0860 / IEC 65) and the CSA E65 - 94 have to be obeyed when servicing the appliance. Use of a AC separator transformer is mandatory during maintenance while the appliance is opened, needs to be operated and is connected to the AC. Switch off the power before retrofitting any extensions, changing the AC voltage or the output voltage. The minimum distance between parts carrying AC voltage and any accessible metal piece (metal enclosure), respectively between the AC poles has to be 3 mm and needs to be minded at all times. [. . . ] 9 8 Setup Example E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 9 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 10 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 11 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electro-Voice® SbA750 User Manual TOC 0. In buying an Electro-Voice® SbA750 you decided on getting one of todays most advanced active subwoofers incorporating sophisticated technology. The active 15" subwoofer SbA750 with integrated 750 watt power amplifier has been specially designed to provide fundamental bass support for professional full-range and multi-channel cabinets. Through the integrated electronic frequency crossover of the SbA750 setting up an active stereo multi-channel system is truly simple. The stereo audio signals for the mid-high range cabinets are provided via the MID-HIGH outputs on the SbA750. Additionally provided are all connection facilities for using the SbA750 as active mono subwoofer in active 2-way or add-on operation. Manufactured from baltic birch and housing a highperformance Electro-Voice® DL15Y woofer, the SbA750 withstands even the hardest strain during transport and operation. This ensures an absolute secure and reliable power supply connection. However, with large installations consisting of several active cabinets, the use of high-quality AC distributors that allow high power consumption and offer reliable protection throughout the entire system is strongly recommended. Before establishing the AC connection for the first time, make sure that the SbA750s operation voltage setting, which can be found on a label next to the AC switch, corresponds to your local AC voltage. 1 Electro-Voice® SbA750 User Manual 1. Quick Start Caution: Before switching on the power of the SbA750 always set the LEVEL control to its counterclockwise stop. A playing sound source could otherwise lead to extreme output levels. This Quick Start Manual outlines the set up and operation of a SbA750 used as add-on subwoofer together with a Powermixer (see configuration examples). The operation procedures are equivalent for other mixers. Set up your Powermixer system as usual and connect a signal source to the power mixer (e. g. Place your SbA750 somewhere between your full-range cabinets. Set the SbA750s LEVEL control to its counterclockwise stop and connect the unit to a wall outlet using the supplied PowerCon mains cord. Use a stereo phone plug cable to connect the Powermixers MONO OUT to the SbA750s L/MONO INPUT. [. . . ] A balanced wiring is to be preferred in each case. Standard XLR-Cable signal + signal - Cable connection phone to XLR-type, unbalanced signal + signal - Cable connection phone to XLR-type, balanced signal + signal - Standard phone-type, unbalanced signal + signal - Standard phone-type, balanced signal + signal - 5 Electro-Voice® SbA750 User Manual 4. Setup Example A Add-On Operation The easiest way to expand your power mixer by means of a SbA750. Electro-Voice® SbA750 User Manual 6 5. Setup Example B Stereo 2-way Active Operation with Mono Subwoofer In this operation mode only the Mid/High signals are fed to the fullrange speaker cabinets, which allows higher acoustic output levels. 7 Electro-Voice® SbA750 User Manual 6. Setup Example C Stereo 2-way Active Operation with Stereo Subwoofer The second SbA750 provides improved SPL in the bass range, in a full Stereo Setup. Electro-Voice® SbA750 User Manual 8 7. [. . . ]