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PreSonus Eureka

RRP $699.00
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Product Overview

The Great Discovery
The name “Eureka” derives from a Greek word meaning “I have found it!” It was made famous by the ancient Greek scholar Archimedes, indicating exultation at a great discovery. Try the sweet-sounding, super-versatile Eureka preamp and signal processor, and you’ll discover the answer to a variety of sonic needs.
One of our best-selling products, the Eureka is equally at home in the studio or at the gig. With separate mic, line, and instrument inputs, you can employ it on almost any sound source.

Sweetening starts with our high-headroom Class A solid-state mic preamplifier, with variable input impedance to match any type of microphone. A Saturate control simulates the effects of tape saturation and tube warmth so you can go from crystal-clear to warm and rich.

Applications

The Eureka’s versatility stems in part from its malleable signal flow. The EQ can be pre- or post-compressor, and you can bypass each independently. Balanced send and return jacks enable you to insert your favorite outboard processor before the compressor and EQ. The backlit VU meter can display gain reduction or output gain.

The fast, fully variable compressor includes an internal sidechain with variable (10 Hz to 10 kHz) high-pass filter, so it can achieve anything from hard pumping to transparent compression. Its three-band, fully parametric EQ has overlapping frequency selection on each band.

With both XLR and ¼” line outputs, you can connect the Eureka to almost any recording interface, amp, or P.A. system. You can even transfer the signal digitally using the optional AD192 digital-output card, which provides word-clock I/O and two 24-bit, 192 kHz, stereo A/D converters that simultaneously feed the S/PDIF and AES/EBU digital outputs. A ¼” line input lets you use the card to provide digital output for a second Eureka.

Try the Eureka. Like the great Archimedes, you’ll be shouting, “I have found the solution!”

Features

Details on the full range of features are available under the Downloads tab above

1 input channel with high-headroom Class A mic preamplifier
Gain control with +52 dB of gain for the mic input and +44 dB of gain for the instrument input
48V phantom power
80 Hz high-pass filter
-20 dB pad
Polarity-reverse switch
Variable microphone input impedance (50, 150, 600, 1,500, 2,500 Hz)
Variable preamp Saturate control (simulates tape saturation and tube warmth)
Line-input select button
Input clip indicator (LED)
Fast, fully variable compressor
Attack, Release, Ratio, Threshold, and (makeup) Gain
Soft/Hard Knee switch
Bypass switch
Internal sidechain with variable (10 Hz to 10 kHz) high-pass filter
3-band parametric equalizer
Gain, Frequency, and Q controls
Switchable pre-/post-compressor
Bypass switch
Master level control
Backlit VU meter
Gain Reduction to Meter switch (selects gain reduction or output gain)
Optional AES/EBU and S/PDIF digital-output expansion card

Input/Output
1 unbalanced ¼” instrument input (front panel)
1 balanced ¼” line input
1 balanced XLR mic input
1 balanced ¼” line output
1 balanced XLR line output
1 balanced ¼” insert send (output)
1 balanced ¼” insert return (input)

Specifications

Full specifications are available under the Downloads tab above

  • Channels    One
  •     Dynamic Range    >115dB
  •     Headroom    +22dB
  •     Frequency Response    10Hz to 50kHz
  •     Internal Operating Level    0dBu = 0B
  • Microphone Preamp    
  •     Input Impedance, XLR Input    1.3k Ohms
  •     Input Impedance, Line Level Input    10k Ohms
  •     Connectors    Neutrik™ Combo
  • Microphone Preamp    
  •     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
  •     Microphone Input Impedance (selectable)    2.5k, 1.5k, 600, 150, 50 Ohms
  •     Instrument Input Connector    1/4" TS
  •     Instrument Input Impedance    1 Meg Ohm

Product Downloads

  • Eureka Manual PDF 0.3 MB
  • Eureka Eureka JPG 0.7 MB
  • Eureka Eureka Rear JPG 2.1 MB
  • Eureka Eureka Front JPG 1.7 MB

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*Prices are in AUD, include GST and are subject to change. Please call National Audio for pricing and availability on the Eureka.