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HV-3C

 

SAFETY PRECAUTIONS

For your safety and the safety of others, be sure to read and understand all safety and opera-

tional 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. WATER, MOISTURE, AND SPILLAGE

Do not attempt to use the HV-3C in, near, or around water or in unusually moist environments, 
such as near a sink or swimming pool. Prevent liquids or any other materials or objects from spill-

ing or falling into the HV-3C unit. 

2. HEAT AND VENTILATION 

Be sure to allow adequate ventilation to HV-3C and avoid using or installing unit in close proxim-
ity to heat sources, such as heaters, stoves, radiators, power amplifiers, spotlights, or other heat-

producing appliances or equipment. 

3. POWER SOURCES AND POWER CORD PROTECTION

The HV-3C Power Supply should be connected to a power source only of the type described in 
the operating instructions or as marked on the Power Supply. Route the power cord so that it is 
not likely to be walked on or pinched by having objects placed on it. Pay particular attention to 
plugs, receptacles, and the point where the AC power cord exits the HV-3C.

4. GROUNDING
For your safety, it is extremely important that the grounding pin of the 3-wire power cable (in-
cluded with unit) be inserted into a grounding type 3-pin power outlet. If you are unable to insert 
the plug into an existing outlet, contact an electrician to install a properly grounded 3-pin power 
outlet, preferably that with OFI protection, if available.

5. DAMAGE REQUIRING SERVICE
This unit should be repaired or serviced by qualified personnel whenever:
· The AC power cord has been damaged, or
· A 130 Volt DC microphone cable has been damaged, or
· Objects have fallen or liquid has spilled into any HV-3C unit, or
· The unit does not function properly or exhibits a marked change in performance, or
· The unit has been abused, dropped, or damaged, or
· The unit has been exposed to rain or moisture

6. SERVICING

Lethal voltages are found inside the HV-3C chassis.

 The user should not attempt to repair or 

service this unit. All servicing and/or repairs should be referred to Millennia Media. 

If, after reading all instructions, precautions, and warnings, you have remaining questions, please 
contact Millennia Media directly before attempting to use your HV-3C. Retain this owner’s manual 
as a record of your purchase to aid positive identification in the event of loss.

Summary of Contents for HV-3C

Page 1: ...al 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 Millennia Media Inc 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 equip ment described in this manual without t...

Page 2: ...aced on it Pay particular attention to plugs receptacles and the point where the AC power cord exits the HV 3C 4 GROUNDING For your safety it is extremely important that the grounding pin of the 3 wire power cable in cluded with unit be inserted into a grounding type 3 pin power outlet If you are unable to insert the plug into an existing outlet contact an electrician to install a properly grounde...

Page 3: ... correct types See Rear Panel instructions for proper fuse require ments The HV 3C enclosure measures 19 wide x 1 75 high x 13 deep and is designed for mount ing into a standard 1U 19 equipment rack 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 cond...

Page 4: ...Conventional three pin male XLR connectors providing balanced line level microphone output Pin 1 is ground Pin 2 is positive polarity Pin 3 is negative polarity 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...

Page 5: ... HV 3C ...

Page 6: ... 48V Illuminating pushbutton switch which provides phantom power 48VDC to the microphone inserted into that channel When this switch is depressed illuminated red phantom power is applied simultaneously through dual 6 81k ohm resistors to pins 2 and 3 of the three pin female XLR input Use phantom power with condensor and other microphones requiring traditional phantom supply CAUTION Applying phanto...

Page 7: ... HV 3C ...

Page 8: ...erload LED is not an indication of preamp clipping Rather it is a general reference showing a nominal system peak level If clipping is occuring in your recording path check all devices connected after the HV 3C and reduce system gains accordingly In the event that B K DPA 4004 or 4012 microphones are used with hazardous sound pressures over 130 dB SPL an attenuator may be required between micropho...

Page 9: ...IN Common Mode Rejection Ratio 70 dB 35 dB gain 100 mV to 20 kHz 85 dB typical Three pin XLR Polarity Pin 2 positive polarity Pin 1 ground Four pin XLR Polarity Pin 1 ground Pin 2 no connection Pin 3 130 VDC limited to 10 mA Pin 4 unbalanced audio ELECTRO MECHANICAL SPECIFICATIONS Power Consumption 25 Watts nominal Power Requirements 100VAC to 240VAC 50 60Hz selectable Fuses 2 required 2 ea 5 x 20...

Page 10: ... following specifications Those desiring up to date information concerning DPA micro phones should contact DPA directly 4003 4004 4012 PATTERN Omni Omni Cardioid SELF NOISE 15 dB a 24 dB a 19 dB a SPL max 154 dB SPL 168 dB SPL 168 dB SPL FREQ 3dB 8 Hz 30 kHz 8 Hz 45 kHz 35 Hz 25 kHz IMPEDANCE 30 ohms 30 ohms 30 ohms SENSITIVITY 50 mV Pa 10 mV Pa 9 mV Pa A number of options are available for the 40...

Page 11: ...ranties except as listed above Millennia Media shall not be liable for special subsequent incidental consequential or punitive damages including but not limited to damage to recordings microphones mixing consoles or any associated equipment down time costs loss of goodwill or claims of any party dealing with purchaser for such damages re sulting from the use of this product All warranties express ...

Page 12: ...12 HV 3C 3C A 120 ...

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