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Manual Boulder Amplifiers 101

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  • Boulder Amplifiers 101 - page 1

    model model 101 101 MICROPHONE PRE AMPLIFIER OWNERS MANUAL PO Box 204 Boulder, CO. 80306 voice: 303.443.7454 fax: 303.444.4634 email: info@gracedesign.com web: www.gracedesign.com Revision B April, 2001 © Copyright 2000 , Lunatec LLC OdB TRIM - 1OdB 1OdB GA IN 6OdB HI Z 48V HPF POWER ...

  • Boulder Amplifiers 101 - page 2

    1 Thank you for purchasing the Model 101 microphone preamplifier. It is designed to be extremely reliable and easy to use . However, we ask that you take the time to familiarize yourself with some of the more important operation instructions in this manual to avoid most common user problems. Regardless of what audio sources you plan to record, the ...

  • Boulder Amplifiers 101 - page 3

    2 MODEL 101 FE ATURES • Fully balanced transformerless mic input and high impedance instrument input • Balanced XLR and 1/4" TRS outputs • Ultra clean 48 Volt phantom power • 11 position precision silver contact rotary gain switch • High quality conductive plastic 10dB output attenuator • 75Hz 12dB/octave transitional Thompson-Butt ...

  • Boulder Amplifiers 101 - page 4

    3 FRONT PA NEL CONTROLS GAIN CONTROL Each gain control has 11 positions and adjusts the voltage gain on the microphone input from 10dB to 60dB in 5dB steps. When using the instrument input, the gain range is –10d B to 40dB in 5dB steps. NOTE: If you ordered the high gain version of the 101 for use with ribbon microphones , the gain range of your ...

  • Boulder Amplifiers 101 - page 5

    4 CONNECTING THE PRE AMPLIFIER AUDIO CONNECTIONS l Microphone input connections are made using the female XLR connector on the rear panel. This connector is wired with pin 2 positive, pin 3 negative and pin 1 ground . 48V phantom power, if used, is supplied on pins 2 and 3. l Instrument or line input connections are made using the ¼” TRS jack on ...

  • Boulder Amplifiers 101 - page 6

    5 Cable Termination Diagrams 1 2 3 SHI ELD HOT GN D (OPE N) Figure 1 . XLR UNB ALANCED OUTPUT CABLE TERMINATION SHI ELD HOT GN D R IN G I S O PE N TIP R ING SLE E VE PRE AM P E ND Figure 2. TRS UNB ALANCED OUTPUT CABLE TERMINATION POWER SUPPLY CONNECTIONS A 2.1mm jack is used for the DC power input of the 101. The polarity of the jack is positive i ...

  • Boulder Amplifiers 101 - page 7

    6 OPER ATION SETTING THE GAIN l Turn the gain control fully counter-clockwise, turn the trim control fully clockwise and check that the +48V phantom power is off. l Connect the microphone to the preamplifier and then turn on the phantom power switch on if required. l When sending a signal to a recorder that has fixed input levels, simply increase t ...

  • Boulder Amplifiers 101 - page 8

    7 Model 101 S pecifications GAIN RANGE Mic input 5dB steps 10-60dB Mic input 5dB steps High gain version 20-70dB Hi-Z input 5dB steps -10-40dB Hi-Z input 5dB steps High gain ver z sion 0-50dB Output trim attenuator 0 to -10dB THD+N @20dB Gain +20dBu out <0.00085% @40dB Gain +20dBu out <0.0010% @60dB Gain +20dBu out <0.0050% IMD (SMPTE/DIN ...

  • Boulder Amplifiers 101 - page 9

    8 20 75Hz HIGH PASS F IL TE R R ES PONSE d B u +1 0 - 1 - 2 - 3 50 100 200 500 1k 2k 5k 10k 20k d e g PHASE vs FREQUENCY +40 +30 +20 +10 0 - 10 - 40 - 20 - 30 20 50 100 200 1k 500 10k 2k 5k 20k Hz Phase response @10 dB gain. 5 0 Ohm sou rce, 100K Ohm load, HPF Of f FF T S PECTR UM ANALYSIS FFT @40dB gain, +20dBu out 5k 10k 25k 15k 20k Hz +20 0 - 25 ...

Manufacturer Boulder Amplifiers Category Stereo Amplifier

Documents that we receive from a manufacturer of a Boulder Amplifiers 101 can be divided into several groups. They are, among others:
- Boulder Amplifiers technical drawings
- 101 manuals
- Boulder Amplifiers product data sheets
- information booklets
- or energy labels Boulder Amplifiers 101
All of them are important, but the most important information from the point of view of use of the device are in the user manual Boulder Amplifiers 101.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Boulder Amplifiers 101, service manual, brief instructions and user manuals Boulder Amplifiers 101. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Boulder Amplifiers 101.

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A complete manual for the device Boulder Amplifiers 101, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Boulder Amplifiers 101 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Boulder Amplifiers 101.

A complete Boulder Amplifiers manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Boulder Amplifiers 101 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Boulder Amplifiers 101, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Boulder Amplifiers 101, that we can find in the current document
3. Tips how to use the basic functions of the device Boulder Amplifiers 101 - which should help us in our first steps of using Boulder Amplifiers 101
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Boulder Amplifiers 101
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Boulder Amplifiers 101 in a specific country, if it was not possible to solve the problem on our own.

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