User manual MILLENNIA HV-3C

[. . . ] OWNER'S MANUAL 16. 5 15. 0 13. 5 12. 0 10. 5 8. 0 25. 5 18. 0 19. 5 21. 0 A 1 SP OL 16. 5 18. 0 19. 5 21. 0 B +130V +48V 15. 0 13. 5 A 2 SP OL B +130V +48V 22. 5 24. 0 OFF = 0 dB A = +18 dB A+B = +36 dB 22. 5 Millennia Music & Media Systems 12. 0 10. 5 8. 0 25. 5 24. 0 OFF = 0 dB A = +18 dB A+B = +36 dB High Voltage Microphone Preamplifier HV-3C HV-3C High Voltage Microphone Preamplifier Millennia Music & Media Systems 1 READ THIS FIRST! Any changes or modifications not expressly approved by MILLENNIA MEDIA, INC. could void your authority to operate this equipment under the EC or FCC rules. Copyright: You acknowledge that no title to the intellectual property in the HV-3C is transferred to you. Inspection: Inspect packing box(es), HV-3C, and cable(s) for damage, unusual marks, or shortages. [. . . ] If the HV-3C is mounted in a road case or other rack which is prone to strong vibration or shock, it is recommended that the rear of the HV-3C be supported or otherwise reinforced to withstand such conditions. The HV-3C runs cool but should be mounted with at least one rack space open above and below the unit. The HV-3C is designed on a common ground topology. For high quality operation, and for your own safety and the safety of others, do not defeat the purpose of the earth grounding pin on the A/C power cord. HV-3C FRONT-END PROTECTION Back-to-back Zener diodes protect the super-matched bipolar input transistors against high transient energy spikes common when inserting and extracting XLR connectors. 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. Standard input impedance is approximately 6, 200 ohms. Connector contacts are Neutrik gold and Super C plated. 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. Pin 3 is +130 Volts DC power, and pin 4 is unbalanced audio signal. 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. Connector contacts are Neutrik gold and Super C plated. 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. Connector contacts are Neutrik gold and Super C plated. 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. [. . . ] And this is saying a lot considering that DPA's transformer-coupled microphones sound extremely pure. The following is a brief summary of certain DPA high-voltage microphone products and specifications. Most of this material is taken directly from DPA's documentation is is thought to be accurate, however, Millennia Media assumes no responsibility for errors or subsequent changes in the following specifications. Those desiring up-to-date information concerning DPA microphones should contact DPA directly. [. . . ]