Red-Eye Musical Instrument PreamplifierTM
The Red-Eye Instrument Preamp offers a simple direct-connect solution for musicians playing instruments with high-impedance piezoelectric pickups. The Red-Eye Preamp works well with instruments having passive or active piezo pickups or those with magnetic pickups such as electric guitars and electric basses.
The Red-Eye Preamp’s impedance-matching field-effect transistor input circuit is designed especially to match and track the impedance of passive piezoelectric pickups. That results in a smooth, natural, balanced, acoustic instrument tone. Low distortion, low noise, and generous headroom mean that clear tone comes through even when an instrument is played percussively and loudly.
The Red-Eye Preamp also works well with instruments that have magnetic pickups, such as electric guitars and electric basses.
Input: Impedance-matching, accepts up to 2 volt peak-to-peak level without distortion.
Low-impedance, balanced, XLR output, 600 ohms with ground-lift switch,
Boost button with volume control for amplifying solos.
Treble control to boost or reduce treble. Response is flat when control is centered.
Usually powered by 48-volt XLR phantom power but has an internal 9-volt battery and a 9 to 18-volt center-negative, center-ground, power jack as alternatives.
Long 9-volt battery life (~200 hours). Battery is not used if other power is present.
Plugging an instrument in or connecting external power turns the Red-Eye on.
Pwr Chk Light illuminates for about a second if power is good when the preamp is powered up. When powered up on the battery, the light will appear if the battery is in thefirst 3⁄4 of its life.
1⁄4 inch output and input for effects accessory loop, suitable for stomp-tuners or effects pedals or for output to on-stage guitar amps or PAs.
Internal filtering to reject radio-frequency interference from neon lights and cell phones.
Small Chassis Size: 1.25 x 2.25 x 4.25 inches. Weight: 10 ounces.
Red-Eye Preamp Signal Path:
SAVE when you add a battery or cable now!
? The Instrument Input impedance is 1,000,000 ohms.
? The Effects Loop Output impedance is less than 4,000 ohms.
? The Effects Loop Input impedance is 4,000 ohms.
? The XLR Output impedance is 600 ohms.
? Frequency response is flat from 25 Hz to 18 KHz when Treble Control is centered.
? Boost level above no Boost: Minimum Boost = +3 db, Maximum Boost = +7 db
Using the Red-Eye Preamp to simply connect your instrument to a club's sound system:
? You have control over your instrument's treble.
? You have control over solo boost if you need it.
? If you turn on a Stomp-Tuner, the XLR output to the Mix Board will be muted.
Using several effects boxes or a pedal board with the Red-Eye Preamp:
? Connect Effects and/or a Stomp-Tuner in series to the Red-Eye Preamp Effects Loop.
? Effect Boxes and/or Stomp-Tuner will affect the XLR output to the Mix Board.
Using the Red-Eye Preamp to convert a Single-Ended signal to XLR Balanced Output:
? The Red-Eye can also be used as a high-quality passive direct box. The isolation transformer used in the Red-Eye Preamp has a nearly linear response from 18 Hz to over 30 KHz.
? Power is not required
? 4,000 ohm input-impedance, single-ended input
? 600 ohm output-impedance, balanced output
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