Buy PreSonus Eureka Preamp and Compressor online at Gigasonic.com

PreSonus Eureka Preamp and Compressor is a professional recording channel strip containing a discrete class A transformer-coupled microphone preamplifier, FET compressor, and three-band parametric equalizer. PreSonus Eureka comes with variable input impedance so that the Eureka can be matched and "tuned" for all types of microphones and recording applications. This Class A transformer-coupled Mic Preamp also features "SATURATE" which adjusts the drain current on the input FET amplifier to simulate of the effects of tape saturation and tube "warmth".

PreSonus Eureka sports a compressor with variable threshold, attack, release and gain makeup. It offers a soft knee compression mode, as well as a high-pass filter on the sidechain for frequency dependent compression, which is useful for de-essing and other frequency specific compression applications. The three-band fully parametric EQ gives you variable Q (bandwidth) on each band as well as an EQ pre COMP switch to put the EQ before the Compressor in the signal path. The equalizer has overlapping frequency selection on each band for total tonal control and shaping.

PreSonus Eureka has microphone, instrument and line inputs so you can use it as a front end preamplifier for recording with guitars, keyboards, microphones, synths as well as a compressor/equalizer on a single channel during mixdown. PreSonus Eureka microphone preamplifier gives you the balanced send and return jacks so that you can insert your favorite outboard processor before the compressor/EQ to further enhance and customize your sound.

Features

Class A High Headroom Transformer Coupled Microphone Preamplifier

Variable Microphone Input Impedance

Variable SATURATE control (simulates tape saturation and tube warmth)

Fully Variable Compressor with Hi-pass Side Chain

Three Band Fully Parametric Equalizer

EQ Pre or Post Compressor

High Headroom Output Section

Very Low Noise Design

Internal Power Supply

Transparent, wide range performance

Optional 24-Bit/192k Digital Output Card (AD192)

Specifications

Channels: One

Dynamic Range: >115dB

Headroom: +22dB

Frequency Response: 10Hz to 50kHz

Internal Operating Level: 0dBu = 0B

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 in. TS

Instrument Input Impedance: 1 Meg Ohm

Send Connector: 1/4 in. TRS balanced/unbalanced

Send Output Impedance: 51 Ohms

Return Connector: 1/4 in. TRS balanced/unbalanced

Return Input Impedance: 10k Ohms

Metering (3-LED): -20dBu, 0dBu, Clip

Line Input (switchable): 1/4 in. TRS, 10k Ohm Input Impedance

Phantom Power (switchable): +48V (pin 1, pin 2 XLR)

Pad (switchable): 0dB/-20dB

Phase (switchable): 0, 180 degrees

Hi-pass filter (switchable): -3dB shelf at 80Hz

Compressor

Threshold (variable): -40dBu to +20dBu

Ratio (variable): 1-10 (1:1 to 2:1)

Attack (variable): 0.1 to 200 ms

Release (variable): 0.05 ms to 3 S

Gain Make-up: -20dB to +20 dB

Hi-pass Side Chain Filter (variable): 10Hz to 10kHz

Metering: Analog VU (gain reduction / Output Level)

Equalizer

Low Band (+/-13dB): 20Hz to 300Hz

Mid Band (+/-13dB): 200Hz to 3kHz

High Band (+/-13dB): 2kHz to 20kHz

Q (variable all bands): Q=0.4 to 2 (3 octave to 2/3 octave)

Master

Output Fader: -70dB to +10dB

Output Connectors: XLR balanced and 1/4 in. TRS balanced/unbalanced

Output Impedance: 51 Oms

Metering (output level): Analog VU (-20dBu to +6dBu)

Meter (gain reduction): Analog VU (-20dB to 0dB)

Output Headroom: +22dBu

Physical

Power Supply: Internally Regulated Linear Type

Power Requirements (factory configured): 100VAC to 120VAC, 200VAC to 240VAC

Size: 1U Rack

Dimensions (W x H x D): 19 x 1.75 x 7 in.

Weight: 8 lbs.

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Number of Reviews: ( 9 )
Share your thoughts with other customers on PreSonus Eureka Preamp and Compressor.
Write Your Buying Experience

10/19/2011 - I have two Eurekas that i bought to stereo micing along with my Earthworks Lab Preamp. The Eureka have a lot of headroom to play with a very low noise. I track everything like acoustics, vocals, bass and drums with great results. I wish the knobs are more bigger or detailed. Too much knobs for one 19" rack space. But, the quality is awesome. I never use EQ when tracking, so i can't comment about it. The pre is very clean, and the compressor is great for gentle tweaks to get a uncolored, musical, great tone.

Rating:

[5 of 5 Stars]

-- James Hill

03/14/2011 - Good sound for the money for the $400-500.00 range. Of course, if you had the money, you would buy a Manley or Avalon mic pre instead, unless you own this to begin with. This is for people who want a much better EQ than they get on the Mackie or Behringer mixing boards. Plus, there's the added benefit of having a natural sounding compressor as well, as opposed to a computer plug in.

Rating:

[4 of 5 Stars]

-- Ricker Idol

11/28/2010 - I recently had the opportunity to use Eureka with a really great microphone, the Telefunken Elam 251, a vintage tube microphone from 1959 the sells for upwards of $25,000. I also tried it with a much more modestly priced Shure SM57. After an initial bit of trial and error, I started to get some really great results in a short amount of time. Later, I used the SM57 dynamic on an electric guitar amp and for some acoustic guitar, and I mic’d a bass drum with an AKG D112 through it. The Eureka’s silky bottom and ultra sparkling clean top end were hallmarks of all these tests, and the Eureka definitely displayed a chameleon-like quality in being able to tackle all these chores easily. This thing sounds like stuff that costs four times as much!

Rating:

[5 of 5 Stars]

-- Sven Erik

07/11/2010 - what more do you want? It has a pre with selectable impedence, compressor, eq and a saturate knob. I used it in the studio on my snare drum with a beta 57 and i hit the snare pretty loud and the pre wouldn't seem to clip or hear any noticable distortion on this too, usually on the snare, in my exprience, the snare wouldn't require that much gain. I do wish there was more of an LED on the pre section besides the 3 LED's it has on it.

Rating:

[5 of 5 Stars]

-- Joe Buck

06/06/2010 - The sound quality is comparable to preamps in the $1,500 range. I went to the Guitar Center to buy an Avalon 737SP and happened to see the Eureka (I had heard good things about it). So I decided to test them out using Blue and Neumann microphones. The Eureka had a different and to my ears, better sound quality than the Avalon. Of course, the Avalon was fuller because of the tubes. However, the Eureka sounded much clearer. I purchased the Eureka and saved $1,500 that day. I can't say that I regret it. Of course, there is always the thought of owning that $2,000 preamp...but my sound quality is amazing with this thing. Do not expect to record the next Grammy winning album with this thing alone though. It cannot compare to the higher quality Avalon, Neve and Focusrite. Of course, this would cost you thousands more. I plan on keeping this for a while as I'm doing local recordings with this thing and even recording albums. However, after college I plan on having a huge studio and I doubt this will be my main preamp. For a value, this is amazing. If you have 10 grand to spend without regret, I suggest purchasing a top quality compressor, EQ and preamp separately. However, if you're like most people, I'd recommend this thing over any other preamp in its price range.

Rating:

[4 of 5 Stars]

-- Patrick Giles

05/25/2010 - The sound is very clean and quiet. I used it live and in the studio. Its funny because when i used it live i just kept cranking up the gain on the lead vocalist and the pre would not clip or hear any noticeable distortion, even with the needle slamming into the red on the vu meter. Just read the reviews and hear it for yourself, for the price it is, it's a great buy!

Rating:

[5 of 5 Stars]

-- Mackenzie Shelley

04/07/2010 - I have so far only worked with higher end preamps. I can't compare it much to the other products in its price range. I know this thing tops the Mackie preamps and EQ. I also know that this is better sounding than the DBX. And best of all, it holds its own against gear costing over a grand more. I own a Blue Robbie and that thing sounds harsh compared to the Eureka and costs double the money. I would have probably paid double the price for this thing. Triple would be pushing it a little too much as there would be a lot of competition in that price range.

Rating:

[5 of 5 Stars]

-- Cosmo Baldwin

03/21/2010 - The knobs were tight and smooth, very easy to rotate considering how small they are. This thing is made very well and it looks real cool with it's V.U. meter in the center and blue lights and buttons surrounding it. But if you’re looking for a relatively inexpensive way to give your sound a unexpected lift, you can't find a better unit for the money.

Rating:

[5 of 5 Stars]

-- Elijah Scott

02/07/2010 - I use an AW4416 my mixer and I wanted to a preamp for a little more control over my mic for more dynamics. I was so surprised when I sang a track using the Eureka,the mic was much smoother and the control over dynamics was impressive.My singing style is rather smooth but I'm very dynamic concious and I found no matter what I was doing vocaly,I could find a balanced setting. I'm Impressed. Money well spent.

Rating:

[5 of 5 Stars]

-- Glenn Beebe

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