User manual MILLENNIA HV-3C

[. . . ] The material contained in this manual consists of information that is property of Millennia Media, Inc. and is intended solely for use by the purchasers of the equipment described in this manual. expressly prohibits the duplication of any portion of this manual or the use thereof for any purpose other than the operation and/or maintenance of the equipment described in this manual without the express written permission of Millennia Media, Inc. . Under copyright laws, this manual may not be duplicated in whole or in part without the written consent of Millennia Media, Inc. . [. . . ] However, to maintain top performance and protect the HV-3C's sensitive front-end, it is advised that you do not insert or extract XLR connectors with preamp AC power on. Get in the habit of turning preamp power off when inserting or removing microphone input or line output cables. Millennia Media has long enjoyed a reputation for what many engineers call the world's most musically accurate and dynamically stable microphone preamplifier. With B&K (DPA) high voltage HV-3C 4 mic input option, a fully balanced audio path, enormous non-padded input and output headroom, superior technical specifications, world-class internal componentry, optional A/D conversion, and unparalleled sonic performance, the HV-3 series of microphone preamps is already becoming a true classic in the professional audio industry -- and will remain contemporary well into the next century. Hence, Millennia Media. HV-3C REAR PANEL (1) CONVENTIONAL MIC INPUTS "48V IN (Ch 1 - 2)" Conventional 3-pin female XLR input jacks for use with all conventional balanced microphones, both phantom and non-phantom powered. It is suggested that XLR cable connectors used with the HV3C employ identical plating. (2) HIGH VOLTAGE MIC INPUTS "130V IN (Ch 1 - 2)" Four pin female XLR connector for use only with B&K (DPA) models 4003, 4004, 4009, and 4012 microphones. On HV-3C units without this option, a metal plate will cover the unused XLR holes. Connecting anything other than the above listed B&K (DPA) models to this connector may result in serious damage to microphone, the HV-3C unit, or both. It is suggested that XLR cable connectors used with the HV-3C employ identical plating. (3) LINE LEVEL OUTPUTS "OUT (Ch 1 - 2)" Conventional three pin male XLR connectors providing balanced, line level microphone output. The line level output is capable of driving 600 ohm loads and long, high capacitance cables. Outputs may be configured in an unbalanced configuration by either grounding one of the audio polarities (pin 2 or pin 3), or taking one audio polarity directly as an unbalanced signal (recommended). In the former configuration, the output is automatically increased by 6 dB. It is suggested that XLR cable connectors used with the HV-3C employ identical plating. (4) AC VOLTAGE MAINS SELECTION "100-120" or "200-240" A power entry module with a removable fuse holder block. This fuse holder block is selectable for 100 to 120 Volt or 200 to 240 Volt worldwide mains powering. The fuse block contains two fuses -- one fuse is in series with the hot power line while the other fuse is in series with the neutral power line. To change the mains voltage selection, remove IEC power connector and assure that the HV-3C is not connected to mains power. With a non-conductive tool, gently pry the fuse block away from the power entry module. Orient the fuse block so that the proper voltage is shown and reinsert into the power entry module. Double check that the fuses installed correspond to the AC mains voltage range which is shown on the exterior panel. FUSES: For 100-120 VAC mains use 5 x 20 mm, 500 mA, slow blow, 250 V Littelfuse 218 or equiv. , For 200-240 VAC mains use 5 x 20 mm, 250 mA, slow blow, 250 V Littelfuse 218 or equiv. , HV-3C 5 HV-3C 6 (5) POWER ENTRY "IEC Power Receptacle" An IEC-type AC line-power receptacle for use with removable cords. [. . . ] The HV-3C micamp circuits maintain nearperfectly flat, inter-channel matched frequency response and less than 1/4 degree of interchannel phase error -- a perfect compliment to a factory-matched pair of DPA microphones. HV-3C 11 WARRANTY Millennia Media will repair this product, free of charge, in the USA, in the event of defect of materials or workmanship for one (1) year following date of purchase. This limited warranty covers failures due only to defects in materials and workmanship which occur during normal, intended use and does not cover damage which occurs in shipment or failures which are caused by products not supplied by Millennia Media. This limited warranty does not cover failures which arise from accident, misuse, abuse, neglect, mishandling, misapplication, faulty installation, improper adjustment, alteration or modification of product, incompatibilities, line-power surges, acts of God, or service performed by anyone other than Millennia Media or its authorized agent. Vacuum tube failures are not covered under warranty. LIMITS AND EXCLUSIONS There are no express warranties except as listed above. [. . . ]