Red-Eye Twin Instrument Preamplifier/Blender
TM
The Red-Eye Twin Instrument Preamp offers a simple, one-box, direct-connect solution for
musicians that play two instruments at the same gig or have an instrument with dual pickups. The
Red-Eye Twin works well with instruments having passive or active piezo pickups, electret
microphones or magnetic pickups such as electric guitars and basses. Performers that find the
Red-Eye Twin useful are, for example, those playing fiddle and mandolin, guitar and mandolin,
string bass and electric bass or dual pickup instruments.
The Red-Eye Twin’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, 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.
Features:
Input: Impedance-matching, accepts 2 volt peak-to-peak level without distortion.
Low-impedance, balanced, XLR output, 600 ohms, will drive long cables to mix-board.
Ground Lift Switch to help isolate AC power ground loop hum.
A / B Button selects alternate input. Mode Switch allows playing alternate inputs or both.
Separate Treble and Gain controls for each input. Treble is flat when Control is centered.
Boost Button with Boost Gain control for amplifying solos.
Switch converts B-Channel Input to Phantom Powered electret microphone input.
Runs on 48V XLR Phantom Power, 9-18V Pedal Board Power, or 9V Battery Power.
Uses the battery only if other power sources are not available.
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 appears if the battery is in the first ¾ of its
life.
¼ inch output and input for 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 3.5 x 4.5 inches. Weight: 18 ounces.
Gnd / Lift
Effects
Effects
Mic / Pickup
9-18V
Gain
Control
A
Treble
Control
A
Pwr
Jack
Pwr Chk
Balanced
Output
Boost Gain
A / B
A / B
A
Gain
B
Gain
A
Treble
B
Treble
A + B
Instrument A
B Instrument
Red-Eye Twin
Instrument Preamplifier
www.fire-eye.com
Boost
Instrument A Input
Instrument B Input
Power OK Light
A / B Button
Instrument A Light
XLR Output To
Sound System
Output To
Accessories
Input From
Accessories
Boost Gain Control
Boost
Light
Treble
Control B
Mode Control
Gain
Control B
Boost Button
Instrument B Light
B Mic Phantom Pwr Switch
Ground Lift Switch
