redeye 3D phantom
active buffered instrument input
Using this buffered front panel instrument input, you must have the
Redeye 3Ds output male XLR on the rear of the unit plugged into a
microphone preamplier and have the phantom power on the micro-
phone preamplier activated. If the Redeye is properly hooked up to
the pre and the phantom is on, the red led will be lit.
The maximum level you can feed into this input is approximately
+16dB before clipping (that's a lot for an instrument). The input Im-
pedance is approximately 1 meg Ω. We experimented with a much
higher input impedance which might have helped piezo pickup users
(piezo users, see DIY section if you want to know how to mod), but
for standard guitars using passive pickups like a Telecaster or a Les
Paul, the 1 meg Ω sounded like plugging directly into the amp, which
when re-amping, is essential.
redeye 3D phantom
un-buffered instrument input
A passive un-buffered instrument input is available on the rear of the
Redeye 3D. This input requires no phantom power, and the red led
need not be on for the Redye 3D to function in this passive mode. If
you want the same sound as the original Redeye, this input will be the
input. It sends your instrument signal directly to the primary of the
transformer.
This input is best for active instruments, keyboards, synths, guitars
with pre-amps built in, and anything with lots of gain and not sensitive
to loading. The load presented by the Redeye or Redeye 3D for these
types of instruments is very high at approximately 30k Ω but not high
enough for passive devices, which are much more sensitive to loading.
The maximum level you can feed into this input is not dened because
a transformer doesn't clip, but NOTE: It is not designed for high-level,
high-current speaker signals.
redeye 3D phantom
line level female xlr in
The female XLR is the input of the re-amp section of the Redeye 3D
Phantom; what needs to be fed in here is a line level (+4dB) lo imped-
ance balanced signal from the output of a DAW, a tape machine or
send off a console. The input impedance on this input is 9kΩ; if the
re-amp overdrive is selected, the input impedance is 600Ω (4kΩ pre
serial #13978).
After the signal enters the Redeye 3D, the signal will be reduced by
approximately 15dB, converted to a hi-impedance unbalanced (guitar
signal), and available at the front panel instrument/re-amp level out
jack to feed an amp or pedal.
redeye 3D phantom
expansion in and expansion out
These are simply parallel (1/4" TRS) jacks with the line level female XLR in.
They allow you to plug in balanced (TRS) plugs or unbalanced (TS ) plugs
low impedance signals from the output of a DAW, a tape machine, or send off
a console.
You can plug in the expansion in jack on the Redeye 3D from our other
products, the PCP or the Pepper expansion out jacks, using a TRS balanced
cable. This setup creates another output of these devices that can be located
far from the source (with ground isolation and the same transformers). So
let's say you feed three amp heads in the control room with the PCP; use this
method with the Redeye 3D to feed a combo amp in the live room.
The expansion in and outs allow you to easily daisy chain multiple Redeye
3Ds to feed multiple guitar amps or pedals.
Use your imagination; for example, utilize one microphone preamplier fed
from the Redeye 3D mic, level out XLR and back in the line level female
XLR, and create a guitar splitter with as many outputs as Redeye 3Ds.
With four Redeye 3Ds rack mounted, you can easily create a truly excellent
transformer-isolated guitar splitter in a pinch! You can do more than that, but
I will let you wrap your brain around it and gure out all the possibilities.
