Page 2 - authorized service representative
W A R R A N T Y PreSonus Limited Warranty PreSonus Audio Electronics Inc. warrants this product to be free of defects in material and workmanship for a period of one year from the date of original retail purchase. This warranty is enforceable only by the original retail purchaser. To be protected by...
Page 3 - T A B L E O F C O N T E N T S; Overview; Operation; Technical
T A B L E O F C O N T E N T S 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...
Page 4 - experts; . 2 F E A T U R E S; 8 Volt Phantom Power.
1 O V E R V I E W 4 1 . 1 I N T R O D U C T I O N 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 an...
Page 5 - O V E R V I E W; Variable Microphone Input Impedance.
O V E R V I E W 5 chance of over-driving the input and avoiding distortion. • +22dBu Headroom. The EUREKA mic-pre has +22 dBu of headroom. This feature gives you wide dynamic range and excellent transient response characteristics. • Saturation Control. The EUREKA offers a very high quality transform...
Page 6 - Variable Q
O V E R V I E W 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. • Bypass Switch. A bypass switch is provided to audition the signal in an equalized version as compared to a ...
Page 7 - C O N T R O L S & C O N N E C T I O N S; . 1 F R O N T P A N E L B A S I C L A Y O U T; Preamplifier section:
2 C O N T R O L S & C O N N E C T I O N S 7 2 . 1 F R O N T P A N E L B A S I C L A Y O U T 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 Switc...
Page 8 - C O N T R O L S & C O N N E C T I O N S; Compressor Section:
C O N T R O L S & C O N N E C T I O N S 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 • Gai...
Page 9 - . 2 P R E A M P L I F I E R; Provides +52dB of gain for the microphone input and +44dB of gain for
C O N T R O L S & C O N N E C T I O N S 9 2 . 2 P R E A M P L I F I E R GAIN: Provides +52dB of gain for the microphone input and +44dB of gain for the instrument input. IMPEDANCE SELECTOR: Selects the amount of resistance that is applied to the microphone input. This selector allows you to matc...
Page 10 - XLR; connector wiring for; Phantom Power; Reverses the polarity of the signal. Use the phase reverse; . 3 C O M P R E S S O R; Sets the level at which compression begins. When the signal
C O N T R O L S & C O N N E C T I O N S 10 XLR connector wiring for Phantom Power 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 for rapidly reducing the level coming into the EUREKA and thus p...
Page 11 - Sets the compression slope. This is defined as the output level
C O N T R O L S & C O N N E C T I O N S 11 Basically, as you turn the Threshold knob counter-clockwise, the input signal is compressed. (If you have a ratio setting of greater than 1:1.) RATIO: Sets the compression slope. This is defined as the output level versus the input level. For example, i...
Page 12 - . 4 E Q U A L I Z E R; GAIN; this control will have no effect.; BYPASS; : When pushed in, the EQ is no longer equalizing the signal.
C O N T R O L S & C O N N E C T I O N S 12 2 . 4 E Q U A L I Z E R 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 boost of the corresponding frequency. Each gain control offers +/-10dB of attenuation. ...
Page 13 - . 5 M A S T E R; This; . 4 B A C K P A N E L B A S I C L A Y O U T; Connectors
C O N T R O L S & C O N N E C T I O N S 13 2 . 5 M A S T E R 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 r...
Page 14 - INSERT: Return and Send; . 7 P O W E R S U P P L Y; Power Jack
C O N T R O L S & C O N N E C T I O N S 14 All Input and Output connectors are servo 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 pr...
Page 15 - O P E R AT I O N; . 1 M I C R O P H O N E S; Microphone Input Impedance; . 2 S E N D A N D R E T U R N; The EUREKA features 1⁄4” TRS balanced; Send; and; Return
3 O P E R AT I O N 15 3 . 1 M I C R O P H O N E S 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 ge...
Page 16 - O P E R A T I O N; A 192K/24-BIT Digital Output Card is available as an
O P E R A T I O N 16 into the external processor, then back 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 1 9 2 K / 2 4 - B I T D I G I T A L O...
Page 17 - . 4 A P P L I C A T I O N S E T T I N G S; The following are application settings to
O P E R A T I O N 17 3 . 4 A P P L I C A T I O N S E T T I N G S 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 you...
Page 18 - Guitar
O P E R A T I O N 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 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...
Page 20 - Drum
O P E R A T I O N 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 Gain Freq Q Gain Freq In Wide +8 60 Nar -8 400 Wide +6 2.5k 7. Snare Compressor settings Thresh Ratio Gain Soft ...
Page 21 - Overheads; Thresh Ratio Gain Soft Bypass Attack Release; LOW
O P E R A T I O N 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 Gain Freq Q Gain Freq Out Wide -4 40 n/a 0 n/a Wide +2 20k
Page 22 - T E C H N I C A L; EUREKA SPECIFICATIONS
4 T E C H N I C A L 22 EUREKA SPECIFICATIONS Channels ....................................................................................................ONE Dynamic Range..................................................................................... >115dB Headroom ...........................
Page 23 - T E C H N I C A L; Equalizer
T E C H N I C A L 23 Equalizer Low Band (+/-10dB) ................................................................... 20Hz – 300Hz Mid Band (+/-10dB) ....................................................................200Hz to 3kHz High Band )+/- 10dB) ..................................................
