User manual BEHRINGER DI800

[. . . ] DI800 Users Manual Version 1. 1 June 2004 ULTRA-DI PRO ENGLISH ULTRA-DI PRO DI800 IMPORTANT SAFETY INSTRUCTIONS DETAILED SAFETY INSTRUCTIONS: 1) Read these instructions. CAUTION: To reduce the risk of electric shock, do not remove the top cover (or the rear section). No user serviceable parts inside; refer servicing to qualified personnel. 5) Do not use this apparatus near water. [. . . ] Never let unsupervised children play with the ULTRA-DI PRO or with its packaging. Please dispose of all packaging materials in an environmentally-friendly fashion. + + + + 1. 1. 2 Initial operation Please make sure the unit is provided with sufficient ventilation, and never place the ULTRA-DI PRO on top of an amplifier or in the vicinity of a heater to avoid the risk of overheating. + Before plugging the unit into a power socket, please make sure you have selected the correct voltage: Fig. 2. 1: Front panel control elements The -30 dB attenuation switch increases the operating range of the DI800 considerably, from low signal levels of a high-impedance mic or a guitar, all the way to speaker connectors of a guitar amplifier. The fuse compartment near the power plug socket contains three triangular markings. Two of these triangles are opposite one another. The voltage indicated adjacent to these markings is the voltage to which your unit has been set up, and can be altered by rotating the fuse compartment by 180°. ATTENTION: This does not apply to export models that were for example manufactured only for use with 120 V! + + + If you alter the units voltage, you must change the fuse accordingly. The correct value of the fuse needed can be found in the chapter SPECIFICATIONS. Faulty fuses must be replaced with fuses of appropriate rating without exception!The correct value of the fuses needed can be found in the chapter SPECIFICATIONS. Use the -30 dB switch only when the DI800 starts distorting (and not the mic preamp). When this is not the case, avoid using this function, since the lowest amount of attenuation is desirable in order to obtain the lowest signal-to-noise ratio possible. Using the GND LIFT switch, you can fully separate input and output grounding. Depending on how the equipment to which your DI800 is connected is grounded, using the GND LIFT switch lets you lower hum noise or ground loops. When the GND LIFT switch is depressed, the ground connection is interrupted (the LED is lit red). When the switch is in the PHANTOM OR MAINS POWER ON setting, the LED is lit green (when the GND LIFT switch is not pressed). The +20 dB switch increases the input signal level by 20 dB. Use the POWER switch to power up your DI800. Use a high-quality balanced microphone cable to establish connection. The mains connection is achieved via the standard IEC connector. The serial number is located on the top of the unit. Please take a few minutes and send to us a completely filled out warranty card within 14 days of the original date of purchase. Otherwise, warranty claims may be rendered invalid. Or fill out the warranty information online at www. behringer. com. [. . . ] BEHRINGER will inform the buyer of any such circumstance. If the buyer fails to submit a written repair order within 6 weeks after notification, BEHRINGER will return the unit C. O. D. with a separate invoice for freight and packing. Such costs will also be invoiced separately when the buyer has sent in a written repair order. [. . . ]