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PRO MPA II

™

ART PRO MPA II Microphone Preamplifier

USER’S GUIDE

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Содержание PRO MPA II

Страница 1: ...PRO MPA II ART PRO MPA II Microphone Preamplifier USER S GUIDE...

Страница 2: ...ntilation Do not position the unit where the air required for ventilation is impeded If the unit is to be operated in a rack case or other furniture ensure that it is constructed to allow adequate ven...

Страница 3: ...switch rear panel 7 Meter Trim 7 Front Panel connections 7 Instrument Inputs 7 Rear Panel connections 8 Balanced Inputs 8 Balanced Outputs 8 PRO MPA II OPERATING INSTRUCTIONS 9 Obtaining the best noi...

Страница 4: ...Low noise at low gains Low THD Wide frequency response Front accessible Instrument Input Jack Very high input impedance Mid Side micing support 4dBm 10dBV output level selection Switch selectable Ste...

Страница 5: ...2 Figure 1 Block Diagram...

Страница 6: ...Gain switch 20dB and the Analog Output control 10dB for a maximum of 70dB total The combination of these controls allows the user to adjust the signal level through the tube section providing more or...

Страница 7: ...a single tuned High Pass Filter that is frequency tunable The input signal can be filtered to remove pops or other extraneous low frequency information This control moves the rolloff frequency from 10...

Страница 8: ...he tube circuit in the signal path so you can hear slight differences between different phase selections in the normal plate voltage mode near saturation There are a number of reasons why adjusting th...

Страница 9: ...There is increased bandwidth 100KHz and headroom in this mode as well Mid Side Matrix switch The Mid Side Matrix switch is used to decode Left Right information when using two mics aligned for stereo...

Страница 10: ...the Meter s 0 point when This may change if the unit is NOT mounted with the front panel perpendicular to the floor Using a small flat blade screwdriver you can mechanically fine tune the meter indic...

Страница 11: ...anced and 17dBu unbalanced Balanced Outputs The PRO MPA II s flexible active balanced outputs are available on both and cannon connectors They offer low impedance for driving long cable runs and are i...

Страница 12: ...ficient level This procedure optimizes the gain elements to provide the widest dynamic range possible Adjusting the Input Impedance The same microphone can sound different on various pre amps One reas...

Страница 13: ...setting is smooth and quiet and the gain variation is minimal NOTE It takes 15 30 seconds for the tube circuit to fully transition between either mode During this time the unit passes a signal and the...

Страница 14: ...n to CH1 Face the front of the figure 8 pickup mic to the left side and connect it to the CH2 input Depress the Mid Side Matrix switch and center both of the Output Gain controls Adjust the Input gain...

Страница 15: ...sions This warranty does not apply in the event of misuse or abuse of the product or as a result of unauthorized alterations or repairs This warranty is void if the serial number is altered de faced o...

Страница 16: ...ult go to www artproaudio com You may contact Cus tomer Service for more assistance or directly request a Return Authorization for service in the resources area of the website 3 If you are returning t...

Страница 17: ...19dBu cannon Maximum Instrument Input 17dBu Input Impedance 150 3000 Ohms adjustable XLR 800K Ohms Instrument Maximum Output Level 27dBu XLR Output Impedance 47 Ohms XLR Maximum Gain 70dB Meter Calibr...

Страница 18: ...15 NOTES...

Страница 19: ...16...

Страница 20: ...17 www artproaudio com E mail cserve artproaudio com PRO MPA II Microphone Preamplifier 214 5004 201h...

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