Eureka Microphone Preamplifier - Manuals

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...

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 ...

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...

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...

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...

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...

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...

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. ...

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...

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...

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...

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...

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...

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...

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 ...

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

4 T E C H N I C A L 22 EUREKA SPECIFICATIONS Channels ....................................................................................................ONE Dynamic Range..................................................................................... >115dB Headroom ...........................

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) ..................................................