OWNER'S MANUAL 16.5 18.0 19.5 21.0 15.0 13.5 A 1 SP OL 16.5 B +130V +48V 18.0 19.5 21.0 15.0 A 2 SP OL B +130V +48V 13.5 22.5 24.0 12.0 10.5 8.0 25.5 OFF = 0 dB A = +18 dB A+B = +36 dB 22.5 24.0 12.0 10.5 8.0 25.
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. 1. Copyright: You acknowledge that no title to the intellectual property in the HV-3C is transferred to you. 2. Inspection: Inspect packing box(es), HV-3C, and cable(s) for damage, unusual marks, or shortages. It is your responsibility to report damage, shortage, or misshipments in a timely manner.
2 SAFETY PRECAUTIONS For your safety and the safety of others, be sure to read and understand all safety and operational instructions before attempting to use the HV-3C. WARNING: The HV-3C internal circuitry carries lethal voltages. Carefully observe all warnings, precautions, and instructions on the HV-3C and as described in the instructions supplied with the unit. 1.
3 QUICK START! READ THIS!! The HV-3C operates with lethal operating voltages — the voltage inside the HV-3C can kill you. Never, under any circumstances, remove the top cover. Refer to a qualified electronics technician any and all servicing and other operations which require the top cover to be removed. Congratulations on your purchase of the Millennia Media HV-3C High Voltage Microphone Preamplifier.
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.
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6 (5) POWER ENTRY "IEC Power Receptacle" An IEC-type AC line-power receptacle for use with removable cords. Use only the power cord provided with the HV-3C unit or equivalent U/L approved type SV, SVT, SJ, or SJT AC power supply cord. Do not defeat the third pin earth ground. HV-3C FRONT PANEL (1) HIGH RESOLUTION GAIN CONTROL Detented, 36-position gain control employing a superior quality Grayhill mil-spec gold plated rotary switch. Switch gain is approximately 1.
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8 (4) SIGNAL INDICATORS "OL" & "SP" LEDs The green "signal present" (SP) LED indicates that a nominal signal is present at the microphone input. It is set to illuminate in the neighborhood of -35 dBu. The red "overload" (OL) LED has been set to illuminate when the balanced output reaches a level of +25 dBu. However, the HV3C can produce unclipped, undistorted levels over twice this voltage. Hence, the overload LED is not an indication of preamp clipping.
9 HV-3C GENERAL SPECIFICATIONS THD + Noise, 20 Hz - 30 kHz, 35 dB gain < .0007%, typ .002 % maximum, +27 dBu out Frequency Response -3 dB points Sub 2 Hz to beyond 500 kHz Frequency Response, Interchannel Deviation < 0.1 dB Maximum Input Level +23 dBu Maximum Output Level +32 dBu Input Impedance 6,200 ohms, nominal Output Impedance 24.
10 A WORD ABOUT DPA (Brüel & Kjær) MICROPHONES At present, Danish Pro Audio (formerly Brüel & Kjær Pro Audio Division) manufactures two families of 4000-series professional recording microphones. One family is +48VDC phantom powered, the other is +130VDC direct powered. A primary difference between omni families (4003/4 vs. 4006/7) is that the high voltage microphones are transformerless whereas the phantom powered varieties are transformer coupled.
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 warranty is extended only to the original purchaser. 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.
