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Summary of Contents for Sound Performance Lab Preference Mic Pre 2711
- Page 1 Preference Mic Pre RackPack Module, Model 2711 Single-channel microphone preamplifier module Manual 1 00...
- Page 2 Test Basis: EN50081-1:1992, EN50082-1:1992, EN60065:1993, EN61000-3- 3:1995, EN60065:2002, EN55013:2001, EN55020:2002, EN61000-3-2:2000, 73/23 EWG; 93/68 EWG. We herewith declare, that the construction of the Preference Mic Pre, Model 2711, is in compliance with the standards and regula- tions mentioned above. Notes on environmental protection...
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Page 3: Table Of Contents
Important Security Information ........Hook Up ............. . Scope Of Delivery . -
Page 4: Important Security Information
Important Security Information Please note and retain this information. Carefully read and follow all of the safety and operating instructions before you use the machine. Be doubly careful to follow all warnings and special safety instructions noted in this manual and on the unit. The following information refers to modules built into the RackPack frame. - Page 5 Important Security Information Lightning: Before thunderstorms or other severe weather, disconnect the machine from wall power (but to avoid life threatening lightning strikes, not during a storm). Similarly, before any severe weather, dis- connect ALL the power connections of other machines and antenna and phone/internet cables which may be interconnected so that no light- ning damage or overload results from such secondary connections.
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Page 6: Hook Up
Hook Up Fitting A Module The fitting and/or exchange of modules should only be carried out by qualified persons. Please read the manual of the RackPack frame. It contains all information needed to fit a module as well as all safety and notes and warnings. -
Page 7: Introduction
Introduction When recording acoustic instruments or vocals, using a microphone is inevitable. The actual output level of a microphone is very low and therefore has to be boosted to studio or line level (0 dB) with a pream- plifier. Sometimes signals have to be boosted by a factor of 2000 or more. -
Page 8: Rear Panel/Connections
Rear Panel/Connections Wiring RackPack: Preference Mic Pre... -
Page 9: Xlr Sockets, Channel Split
Rear Panel/Connections XLR Sockets, Channel Split XLR Sockets Connect your microphone to the electronically balanced XLR input. The outputs of the Preference Mic Pre are electronically balanced, too. You can use both XLR output sockets simultaneously. XLR pin wiring: Pin 1 = ground Pin 2 = hot (+) Pin 3 = cold (-) The illustration shows the correct pin... -
Page 10: Control Elements
Control Elements Mic Gain, About Leveling Mic Gain With the Mic Gain control you can regulate the preamplification of the microphone signal. It ranges from +14 dB to +72 dB. The input stage can handle input levels of up to 18 dB. The value set with the Mic Gain con- trol defines the output level equally for both Output 1 and Output 2. -
Page 11: Vu Meter, Ppm, -10
VU Meter, PPM, -10 dB VU Meter The VU meter displays the output level of the preamp. The gauge indi- cates levels from -20 dB to +5 dB. If necessary you can lower the sen- sitivity by 10 dB so that the gauge goes up to +15 dB output level (see “-10 dB”... -
Page 12: 48 V Phantom Power Supply, Pad
Control Elements 48 V Phantom Power Supply The Preference Mic Pre provides 48 volt phantom power for micro- phones requiring external current (generally condenser microphones). Such microphones are dependent upon a clean, consistent and noise-free power supply for optimal operation and audio quality. The Preference Mic Pre continuously delivers precisely 48 V and a maxi- mum current of 14 mA, which will power all microphones. -
Page 13: Phase Reverse, High-Pass Filter, Signal Led, Overload Led
Phase Reverse, High Pass Filter Phase Reverse With the phase reverse button you invert the polarity of the micro- phone signal. When not pressed (button is not illuminated) the polar- ity is in phase. After pushing the button (button is illuminated) the polarity is inverted. The phase reverse feature comes in very handy if you have to switch the polarity of the XLR input according to the polarity of the micro- phone or the microphone cable. -
Page 14: Technology
Technology SSM 2019, Servo Drive SSM 2019 The Preference Mic Pre is suitable for all common dynamic and con- denser microphones. It works along the principles of an instrumenta- tion amplifier which is a technology that is also used in measurement and medical equipment due to its high common mode rejection of stray pick-ups. -
Page 15: Foil And Styroflex Capacitors, Outputs, Channel Split
Technology Capacitors,Outputs, Channel Split Foil And Styroflex Capacitors Only the best MKP and styroflex capacitors are used in the various cir- cuits. They sound more open and dynamic in contrast to the conven- tional ceramic capacitors. Outputs Both output stages are electronically balanced and can be used inde- pendently. -
Page 16: Copy Master: Recall Settings
Copy Master: Recall Settings Artist: ......... . . Album: . -
Page 17: Block Diagram
Block Diagram RackPack: Preference Mic Pre... -
Page 18: Specifications
Specifications Audio Frequency Range CMRR (at 1kHz with -30 dBu input level and 30 dB Gain) THD & N @ 1 kHz Input Level -30 dBu -60 dBu Noise E.I.N. Dynamic Range Input XLR connector, electronically balanced Impedance unbalanced Impedance balanced Max. -
Page 19: Measurements
Sound Performance Lab -100 CMRR with -30dBu input level and vu = 30dB black = input -> output 1 grey = input -> output 2 Sound Performance Lab Frequency Response and THD + N ratio with -30dBu input level and vu = 30dB... -
Page 20: Guarantee
Guarantee Guarantee, Product Registration All SPL products come with a two-year manufacturer’s guarantee against defects in material or assembly from the date of purchase. End users are supported in the two-year guarantee through their distribu- tor or dealer. In such cases, please contact your dealer for full guaran- tee conditions and service.
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