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18

WARRANTY INFORMATION 

 

 

Limited Warranty 
 

Applied Research and Technology will provide warranty and service for this unit in accordance 
with the following warrants: 
 
Applied Research and Technology (A R T) warrants to the original purchaser that this product 
and the components thereof will be free from defects in workmanship and materials for a pe-
riod of three years from the date of purchase. Applied Research and Technology will, without 
charge, repair or replace, at its option, defective product or component parts upon prepaid de-
livery to the factory service department or authorized service center, accompanied by proof of 
purchase date in the form of a valid sales receipt. 

 

Exclusions  

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, or removed. 
 
A R T reserves the right to make changes in design or make additions to or improvements 
upon this product without any obligation to install the same on products previously manufac-
tured. 
 
A R T shall not be liable for any consequential damages, including without limitation damages 
resulting from loss of use. Some states do not allow limitations of incidental or consequential 
damages, so the above limitation or exclusion may not apply to you. This warranty gives you 
specific rights and you may have other rights, which vary from state to state. 
 
For units purchased outside the United States, an authorized distributor of Applied Research 
and Technology will provide service. 
 

 
 
 
 
 
 
 

Содержание DIGITAL MPA II

Страница 1: ...DIGITAL MPA II ART DIGITAL 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: ...tch 9 Front Panel connections 10 Instrument Inputs 10 Rear Panel connections 11 Balanced Inputs 11 Balanced Outputs 11 Insert jacks 12 Wordclock jacks 12 ADAT Input 12 Optical output 12 S PDIF output...

Страница 4: ...trim Selectable between output level and tube warmth Improved discrete class A input microphone preamplifier Lower noise at low gains Lower THD Wider frequency response Front accessible Instrument In...

Страница 5: ...cks The insert jacks allow processing of the signal before its level is adjusted by the Digital Level control and passed to the A D You can use the A D converters of the DIGITAL MPA II independent of...

Страница 6: ...ain 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 l...

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 1...

Страница 8: ...the 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...

Страница 9: ...his mode as well Mid Side switch The Mid Side switch is used to decode Left Right information when using two mics aligned for stereo recording You can use either two figure eight pattern mics or one o...

Страница 10: ...cular to the floor Using a small flat blade screwdriver you can mechanically fine tune the meter indicator position if for example it does not rest at the leftmost position when the unit is OFF Adjust...

Страница 11: ...i e 44 1K 24 or 44 1K 16 Be careful in adjusting this control Some equipment is not capable of the available sample rates and may produce damaging side effects Always turn down levels following the D...

Страница 12: ...4 bit mode has significantly greater dynamic range Optical switch The optical output jack of the DIGITAL MPA II can have one of two formats When this switch is depressed AND lit blue this jack will ou...

Страница 13: ...e Input gain control The maximum input signal level is 17dBu 5Vrms minimum input gain When you plug into this jack it DISABLES the balanced input on the rear of the unit This feature allows you to kee...

Страница 14: ...ced and 17dBu unbalanced Balanced Outputs The DIGITAL MPA II s flexible active balanced outputs are available on both and cannon connec tors They offer low impedance for driving long cable runs and ar...

Страница 15: ...e ADAT input for the DIGITAL MPA II is a standard optical connector This input is used when synching to ADAT for timing purposes It is also used as a data source for channels 3 8 as the channels NOT t...

Страница 16: ...connected isolated from ground and has a 75 Ohm impedance The same data is sent to both this connector and the AES EBU output but it is recommended that you not use both at the same time as the AES E...

Страница 17: ...until there is sufficient 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 variou...

Страница 18: ...ries It is recommended you start with the Digital Level control centered Adjust the input gain and 20dB switch such that the digital meter holds peaks at 3dB and occasionally hits the red 0dB LED This...

Страница 19: ...change is a slight increase in level in the HIGH setting The Normal setting produces a smooth transition from very clean low levels up to a round satu rated clipping on peaks This setting is reminisc...

Страница 20: ...to CH1 Face the front of the figure 8 pickup mic to the left side and connect it to the CH2 input refer to figure 4 Depress the M S switch and center both of the Output Gain con trols Adjust the Inpu...

Страница 21: ...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 22: ...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 23: ...u XLR Output Impedance 47 Ohms XLR Maximum Gain 70dB Meter Calibration 0 VU 4dBu output 4dB mode 0 VU 10dBV output 10dB mode High Pass Filter single pole 10 200 Hz adjustable Power Requirements USA 10...

Страница 24: ...21 www artproaudio com E mail cserve artproaudio com DIGITAL MPA II 216 5004 201h...

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