Eureka Microphone Preamplifier - Manual (Page 5)

OVERVIEW
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 transformer
and features an SATURATION control (this control adjusts the drain
current on the input FET amplifier altering the even harmonic levels of
the signal being passed) with an adjustment range of 0% to 100%. The
0% position passes a pure signal. As the control is rotated to the 100%
position, the signal’s even harmonic series is boosted giving the signal
“warmth” very much like a vacuum tube or similar to the sound of analog
tape saturation. This remarkable effect gives you the sound of a tube
without the headache of uneven performance often encountered with
vacuum tube devices (“no tube to pick-up RF or to age and become
“microphonic”).
• Variable Microphone Input Impedance. This feature enables you to
“tune” your microphone – by matching the output impedance of your
microphone with your microphone preamplifier. This works especially
well for ribbon microphones. Changing the input impedance is also
effective for dynamic and condenser microphones and can be the
perfect solution for a given recording application.
• Phase Reverse. Use the phase reverse switch to combat phase
cancellation with other open microphones.
Full Featured Compressor with High Pass Filter. The EUREKA is
equipped with a Compressor with a high pass side chain filter designed
especially for frequency specific processing.
• Soft Knee Compression. Soft Knee Compression causes the
compression to set in gradually producing a more musical response
• Bypass. The Bypass switch lets you compare the compressed
sound quickly to the uncompressed sound.