PreSonus Eureka PreSonus Eureka PreSonus Eureka PreSonus Eureka
PreSonus Eureka PreSonus Eureka PreSonus Eureka PreSonus Eureka

PreSonus Eureka

Single Channel Strip - Microphone Preamplifier Compressor and Equalizer

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PreSonus Eureka
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.

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 1/4" 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 1/4" 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!"
PreSonus Eureka Features
1 input channel with high-headroom Class A mic preamplifierGain control with +52 dB of gain for the mic input and +44 dB of gain for the instrument input48V phantom power80 Hz high-pass filter-20 dB padPolarity-reverse switchVariable microphone input impedance (50, 150, 600, 1,500, 2,500 Hz)Variable preamp Saturate control (simulates tape saturation and tube warmth)Line-input select buttonInput clip indicator (LED)Fast, fully variable compressorAttack, Release, Ratio, Threshold, and (makeup) GainSoft/Hard Knee switchBypass switchInternal sidechain with variable (10 Hz to 10 kHz) high-pass filter3-band parametric equalizerGain, Frequency, and Q controlsSwitchable pre-/post-compressorBypass switchMaster level controlBacklit VU meterGain Reduction to Meter switch (selects gain reduction or output gain)Optional AES/EBU and S/PDIF digital-output expansion cardInput/Output1 unbalanced 1/4" instrument input (front panel)1 balanced 1/4" line input1 balanced XLR mic input1 balanced 1/4" line output1 balanced XLR line output1 balanced 1/4" insert send (output)1 balanced 1/4" insert return (input)Digitalia1 digital expansion-card slot for optional AD192 24-bit/192 kHz AES/EBU and S/PDIF digital output cardPhysical1U 19" rack-mountable, rugged steel chassisSealed, detented, metal rotary controlsInternal power supply with standard IEC connector
PreSonus Eureka Specifications
Channels: OneDynamic Range: >115dBHeadroom: +22dBFrequency Response: 10Hz to 50kHzInternal Operating Level: 0dBu = 0BMicrophone PreampInput Impedance, XLR Input: 1.3k OhmsInput Impedance, Line Level Input: 10k OhmsConnectors: Neutrik ComboMicrophone PreampGain: +12dB to +52dBNoise Floor: -112dBu (+12dB gain)EIN: -127dBTHD + Noise (0% saturation): <0.005%THD + Noise (full saturation): <0.5%Microphone Input Connector: XLRMicrophone Input Impedance (selectable): 2.5k, 1.5k, 600, 150, 50 OhmsInstrument Input Connector: 1/4" TSInstrument Input Impedance: 1 Meg OhmSend Connector: 1/4" TRS balanced/unbalancedSend Output Impedance: 51 OhmsReturn Connector: 1/4" TRS balanced/unbalancedReturn Input Impedance: 10k OhmsMetering (3-LED): -20dBu, 0dBu, ClipLine Input (switchable): 1/4" TRS, 10k Ohm Input ImpedancePhantom Power (switchable): +48V (pin 1, pin 2 XLR)Pad (switchable): 0dB/-20dBPhase (switchable): 0, 180 degreesHi-pass filter (switchable): -3dB shelf at 80HzCompressorThreshold (variable): -40dBu to +20dBuRatio (variable): 1-10 (1:1 to 2:1)Attack (variable): 0.1 to 200 msRelease (variable): 0.05 ms to 3 SGain Make-up: -20dB to +20 dBHi-pass Side Chain Filter (variable): 10Hz to 10kHzMetering: Analog VU (gain reduction / Output Level)EqualizerLow Band (+/-13dB): 20Hz to 300HzMid Band (+/-13dB): 200Hz to 3kHzHigh Band (+/-13dB): 2kHz to 20kHzQ (variable all bands): Q=0.4 to 2 (3 octave to 2/3 octave)MasterOutput Fader: -70dB to +10dBOutput Connectors: XLR balanced and 1/4" TRS balanced/unbalancedOutput Impedance: 51 OmsMetering (output level): Analog VU (-20dBu to +6dBu)Meter (gain reduction): Analog VU (-20dB to 0dB)Output Headroom: +22dBuPhysicalPower Supply: Internally Regulated Linear TypePower Requirements (factory configured): 100VAC to 120VAC, 200VAC to 240VACSize: 1U RackDimensions: 19" x 1.75" x 7"Weight: 8lbs.AD192 - Optional Digital Output CardBit Resolution: up to 24-BitSample Rates Supported: 44.1, 48, 88.2, 96, 176.4, 192Word Clock: In / Out via BNC ConnectorSupported Digital Formats: Professional, ConsumerSimultaneous Digital Ouputs: AES/EBU and SPDIFAnalog Line Input (one AD192 card supports two Eureka's): 1/4" Balanced TRSTHD + N: 0.002 %Signal to Noise Ratio: 114 dBDynamic Range: 114 dB.
PreSonus Eureka Documents
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PreSonus products are designed to be professional audio tools that provide exceptional creative control for applications including recording, live performance, broadcast and permanent installation.
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