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Eureka - V 3.0, Руководство пользователя

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Eureka - V 3.0 Скачать руководство пользователя страница 22

4 TECHNICAL

 

22

 

 

EUREKA SPECIFICATIONS

 

 
Channels ....................................................................................................ONE 
Dynamic Range.....................................................................................>115dB 
Headroom .............................................................................................+22dBu 
Frequency Response .................................................................10Hz to 50kHz 
Internal Operating Level................................................................. 0dBu = 0dB 
 
 

Microphone /Instrument Preamplifier

 

 
Gain........................................................................................ + 12dB to +52dB  
Noise Floor .....................................................................-112dBu (+12dB gain) 
EIN .........................................................................................................-127dB 
THD + Noise(0% Saturation) .............................................................. <0.005% 
THD + Noise (Full Saturation)................................................................. <0.5% 
Microphone Input Connector...................................................................... XLR 
Mic Input Impedance (selectable) ...................2.5K, 1.5K, 600, 150, 50  Ohms 
Instrument Input Connector .....................................................................¼” TS 
Instrument Input Impedance ...........................................................1 Meg Ohm 
Send Connector ............................................. 1/4” TRS Balanced/Unbalanced 
Send Output Impedance .....................................................................51 Ohms 
Return Connector............................................ 1/4”TRS Balanced/Unbalanced 
Return Input Impedance................................................................... 10K Ohms 
Metering (3-LED)................................................................. -20dBu, 0dBu, Clip 
Line input (switchable) ............................. ¼” TRS, 10k Ohm Input Impedance 
Phantom Power (switchable) ......................................+48V (Pin 1, Pin 2 XLR) 
Pad (switchable)............................................................................... 0dB/-20dB 
Phase (switchable)................................................................................. 0, 180º 
Hi-pass Filter (switchable)....................................................-3dB shelf at 80Hz 
 
 

Compressor

 

 
Threshold (variable) ............................................................. -40dBu to +20dBu 
Ratio (variable)..........................................................................1-10 (1:1 – 7:1) 
Attack (variable) ............................................................................ 0.1 – 200ms 
Release (variable) ............................................................................. 0.05 – 3 S 
Output Attenuation/Gain........................................................... -20dB to +20dB 
High Pass Sidechain Filter (variable).........................................10Hz to 10kHz 
Metering ......................................... Analog VU (Gain Reduction/Output Level) 

Содержание - V 3.0

Страница 1: ...REKA M I C R O P H O N E P R E A M P L I F I E R C O M P R E S S O R P A R A M E T R I C E Q U A L I Z E R USER S MANUAL version 3 0 2003 2007 PreSonus Audio Electronics Incorporated All rights reserv...

Страница 2: ...laims for damage due to abuse neglect alteration or attempted repair by unauthorized personnel and is limited to failures arising during normal use that are due to defects in material or workmanship i...

Страница 3: ...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...

Страница 4: ...udio or live sound environments We would like to suggest that you use this manual to familiarize yourself with the features applications and correct connection procedure for your EUREKA before trying...

Страница 5: ...of uneven performance often encountered with vacuum tube devices no tube to pick up RF or to age and become microphonic Variable Microphone Input Impedance This feature enables you to tune your micro...

Страница 6: ...hes the order of the signal chain putting EQ before the Compressor Master Section Gain Reduction to Meter Shows gain reduction on the meter implemented by the compressor Level The output of the EUREKA...

Страница 7: ...he 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 P...

Страница 8: ...on 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...

Страница 9: ...ing amplified by the EUREKA The effect of manipulating the harmonic distortion is of increasing or decreasing the apparent warmth of the signal This feature is derived from manipulating the drain curr...

Страница 10: ...ter When pushed in the 80Hz button causes all frequencies below 80Hz to be attenuated dropped by 12dB This filter can be handy in live and studio applications For example the 80Hz filter can help to r...

Страница 11: ...o and Threshold settings of the compressor RELEASE Sets the length of time the compressor takes to return the Gain reduction back to zero no gain reduction Very short Release times can produce a very...

Страница 12: ...ects the center frequency of equalization If the gain is set to 0 this control will have no effect Q Bandwidth Controls the width of the frequency being adjusted Q is defined as the ratio of the cente...

Страница 13: ...er 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 Ga...

Страница 14: ...ss devices such as reverbs delays de essers etc NOTE The LINE IN jack does not work unless the LINE button on the front of the unit is pushed in 2 7 P O W E R S U P P L Y The Power Jack on your EUREKA...

Страница 15: ...o select from 50 150 600 1500 and 2500 Refer to your microphone specifications to find the microphone output impedance and experiment with matching the Eureka s input impedance with the microphone s o...

Страница 16: ...d is available as an option for the PreSonus EUREKA It has AES EBU and SPDIF output connectors as well as an auxiliary TRS analog Line input connector The card has a selectable sample rate of 192kHz 9...

Страница 17: ...gs do not include the main preamplifier controls GAIN IMPEDANCE and SATURATE Set these preamplifier controls with the compressor and EQ in bypass for initial levels and tonal quality Use the 80Hz hi p...

Страница 18: ...ettings LOW MID HIGH EQ Comp Q Gain Freq Q Gain 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...

Страница 19: ...IGH EQ Comp Q Gain Freq Q Gain 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 Release SC HP 22...

Страница 20: ...ualizer settings LOW MID HIGH EQ Comp Q Gain Freq Q Gain 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 Ou...

Страница 21: ...verheads 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 Gain Freq Q Gain Freq Out Wide 4 40...

Страница 22: ...dance 1 Meg Ohm Send Connector 1 4 TRS Balanced Unbalanced Send Output Impedance 51 Ohms Return Connector 1 4 TRS Balanced Unbalanced Return Input Impedance 10K Ohms Metering 3 LED 20dBu 0dBu Clip Lin...

Страница 23: ...Impedance 51Ohms Metering Output level Analog VU 20dBu 6dBu Metering Gain reduction Analog VU 20dB 0dB Output Headroom 22dBu Physical Power Supply Internally Regulated Linear Type Power Requirements...

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