English dropdown-ico

Eureka Microphone Preamplifier manual

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

Go to page of

Similar user manuals

A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of Eureka Microphone Preamplifier, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

What is an instruction?

The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Eureka Microphone Preamplifier one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.

Unfortunately, only a few customers devote their time to read an instruction of Eureka Microphone Preamplifier. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.

What should a perfect user manual contain?

First and foremost, an user manual of Eureka Microphone Preamplifier should contain:
- informations concerning technical data of Eureka Microphone Preamplifier
- name of the manufacturer and a year of construction of the Eureka Microphone Preamplifier item
- rules of operation, control and maintenance of the Eureka Microphone Preamplifier item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Eureka Microphone Preamplifier alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Eureka Microphone Preamplifier, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Eureka service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Eureka Microphone Preamplifier.

Why one should read the manuals?

It is mostly in the manuals where we will find the details concerning construction and possibility of the Eureka Microphone Preamplifier item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    EUREKA MICROPHONE PREAMPLIFIER COMPRESSOR PARAMETRIC EQUALIZER USER’S MANUAL version 3.0 © 2003-2007, P r e S onus Audio Electronics, Incorporated. All rights reserved.[...]

  • Page 2

    WARRANTY PreSonus Limited Warranty PreSonus Audio Electronics Inc. warrants this product to be free of defects in material and workmanship for a period of one y ear from the date of original retail purchase. This warranty is enforceable onl y by the original retail purc haser. To be protected by this warranty , the purchaser must comple te and retu[...]

  • Page 3

    TABLE OF CONTENTS 3 1 Overview 1.1 Introduction 4 1.2 Features 4 2 Controls & Connections 2.1 Front Panel Basic Layout 7 2.2 Preamplifier 9 2.3 Compressor 10 2.4 Equalizer 12 2.5 Master 13 2.6 Back Panel 13 2.7 Power Supply 14 3 Operation 3.1 Microphones 15 3.2 Send and Return 15 3.3 192k/24-Bit Digital Output Card 16 3.4 Application Settings 1[...]

  • Page 4

    1 OVERVIEW 4 1.1 INTRODUCTION Thank you for purchasing the PreSonus EUREKA. PreSonus Audio Electronics has designed the EUREKA utilizing high-grade components to insure optimum performance for an infinite period of time. We believe the EUREKA to be an exceptional sounding unit and an except ional value. We encourage you to contact us at 1-800-750-0[...]

  • Page 5

    OVERVIEW 5 chance of over-driving the i nput and avoiding distortion. • +22dBu Headroom. The EUREKA mic-pre has +22 dBu of headroom. This feature gives you wide dyna mic range and excellent transient response characteristics. • Saturation Control. The EUREKA offers a very high quality transformer and features an SATURATION control (this control[...]

  • Page 6

    OVERVIEW 6 3-Band Parametric Equalizer . Total tonal control is what the Equalizer section provides. The EQ will let you fine tune the sound to suit your taste with exacting precision. • By pass Switch. A bypass switch is provided to audition the signal in an equalized version as compared to a direct unaffected signal. • Variable Q . Adjusts th[...]

  • Page 7

    2 CONTROLS & CONNECTIONS 7 2.1 FRONT PANEL BASIC LAYOUT The front panel of the EUREKA is divided into four sections – Preamplifier, Compressor, Equalizer and Master. Preamplifier section: • Gain Control • Impedance Control • Saturation Control • +48 Volt Switch • -20db Pad • Phase Reverse Button • 80Hz Filter • Line Input Sele[...]

  • Page 8

    CONTROLS & CONNECTIONS 8 Compressor Section: • Level Control (Attack, Release, Ratio, Threshold, Gain) • Soft Knee Switch • Bypass Switch • Hi-pass Sidechain Filter Equalizer Section: • 3 Band Parametric • 80 Hz Filter Switch • Bypass Switch Master Section: • Level Control • Gain Reduction to Meter Button[...]

  • Page 9

    CONTROLS & CONNECTIONS 9 2.2 PREAMPLIFIER GAIN: Provides +52dB of gain for the microphone input and +44dB of gain for the instrument input. IMPEDANCE SELECTOR: Selects the amount of resi stance that is applied to the microphone input. This selector allows you to match (or intentionally mismatch) the input impedance of the Eureka with the impeda[...]

  • Page 10

    CONTROLS & CONNECTIONS 10 XLR connector wiring for Phantom Pow er Pin 1= GND Pin 2= +48V Pin3= +48V PAD: Engaging the Pad switch provides - 20dB of attenuation with the push of a button. This is a very useful feature fo r rapidly reducing the level coming into the EUREKA and thus preventing the input signal from over-driving (distorting) the in[...]

  • Page 11

    CONTROLS & CONNECTIONS 11 Basically, as you turn the Threshold knob counter-clockwise, the input signal is compressed. (If you have a ra tio setting of greater than 1:1.) RATIO: Sets the compression slope. This is defined as the output level versus the input level. For example, if you have the Ratio set to 2:1, any signal level above the Thresh[...]

  • Page 12

    CONTROLS & CONNECTIONS 12 2.4 EQUALIZER The EQ is divided into three sections or bands (Low, Mid and High) Each band has the following controls: GAIN : Controls the amount of cut or boos t of the corresponding frequency. Each gain control offers +/-10dB of attenuation. FREQUENCY : Selects the center frequency of equaliz ation. If the gain is se[...]

  • Page 13

    CONTROLS & CONNECTIONS 13 2.5 MASTER MASTER (LEVEL): This control adjusts the output level of the EUREKA. It functions as a master fader for the entire processing strip. It is useful for adjusting the overall output level up or down to match the optimum input level of a recorder, mixer, etc. GR TO METER: When pushed the VU meter reads Gain Redu[...]

  • Page 14

    CONTROLS & CONNECTIONS 14 All Input and Output connectors are serv o balanced. XLR or ¼” TRS with the following wiring standard: XLR/TRS PIN 1 / Sleeve GND PIN 2/ Tip High (+) PIN 3/ Ring Low (-) INSERT: Return and Send connectors are provided for use in conjunction with audio process devices such as reve rbs, delays, de-essers, etc. NOTE: T[...]

  • Page 15

    3 OPERA TION 15 3.1 MICROPHONES The Eureka works great with all types of microphones including dynamic, ribbon and condenser microphones. Dynamic microphones and ribbon microphones are generally lower output devices and require no external power source. Condenser microphones are generally more sensitive than dynamic and ribbon microphones and typic[...]

  • Page 16

    OPERATION 16 into the external processor, then ba ck into the EUREKA. The final, processed signal will be available at the EUREKA output connector. The Send and Return signal will be inserted after the microphone preamplifier, before the compressor. 3.3 192K/24-BIT DIGITAL OUTPUT CARD (OPTIONAL ) A 192K/24-BIT Digital Output Card is available as an[...]

  • Page 17

    OPERATION 17 3.4 APPLICATION SETTINGS The following are application settings to get you started in using your Eureka. Feel free to experiment by pushing any and all buttons and turning knobs to their extreme values - remember there are no rules when creating music. Let your imagination and ear guide and direct the way you set your Eureka. Note that[...]

  • Page 18

    OPERATION 18 2. Acoustic Guitar Compressor settings Thresh Ratio Gain Soft Bypass Attack Release SC-HP -20 3 +2 In Out Mid Fast 10 Equalizer settings LOW MID HIGH EQ>Comp Q Gain Freq Q Ga in Freq Q Gain Freq Out n/a 0 n/a Nar -2 3k Wide +3 18.5k Nar = Narrow Q 3. Electric Guitar Compressor settings Thresh Ratio Gain Soft Bypass Attack Release SC[...]

  • Page 19

    OPERATION 19 4. Bass Guitar Compressor settings Thresh Ratio Gain Soft Bypass Attack Release SC-HP -15 7 +4 In Out MF MS 10 Equalizer settings LOW MID HIGH EQ>Comp Q Gain Freq Q Ga in Freq Q Gain Freq Out Wide +6 85 MN -3 2.2k n/a 0 n/a MN – Medium Narrow, MW – Medium Wide 5. Keyboards Compressor settings Thresh Ratio Gain Soft Bypass Attack[...]

  • Page 20

    OPERATION 20 6. Kick Drum Compressor settings Thresh Ratio Gain Soft Bypass Attack Release SC-HP -18 5 +2 Out Out MF MF 80 Equalizer settings LOW MID HIGH EQ>Comp Q Gain Freq Q Ga in Freq Q Gain Freq In Wide +8 60 Nar -8 400 Wide + 6 2.5k 7. Snare Compressor settings Thresh Ratio Gain Soft Bypass Attack Release SC-HP -22 6 +4 In Out Med Med 10 E[...]

  • Page 21

    OPERATION 21 8. Drum Overheads Compressor settings Thresh Ratio Gain Soft Bypass Attack Release SC-HP -22 5 Fast Out Out Fast Med 400 Equalizer settings LOW MID HIGH EQ>Comp Q Gain Freq Q Ga in Freq Q Gain Freq Out Wide -4 40 n/a 0 n/a Wide +2 20k[...]

  • Page 22

    4 TECHNICAL 22 EUREKA SPECIFICATIONS Channels .................................................................................................... ONE Dynamic R ange ..................................................................................... > 115dB Headroom ..............................................................................[...]

  • Page 23

    TECHNICAL 23 Equalizer Low Band (+/-10dB ) ................................................................... 20H z – 300Hz Mid Band (+/-10dB) .................................................................... 200H z to 3kHz High Band )+/- 10dB) .................................................................. 2kHz – 20kHz Q (variable all b[...]