Radial Engineering X-AMP User Manual page 15

True to the Music
In the 1980's Whirlwind also produced a device that could
accommodate low-to-hi conversion using a transformer.
In 1994, Reamp® commercialized the process by producing a
box that incorporated a transformer and a volume control.
This allowed the user to adjust the volume at the amplifier
instead of at the mix position. In 1996, the 1st generation
Radial™ JDI was introduced.
The first generation Radial JD7 Injector was released in 2001
with a balanced output and input to allow re-amping and
subsequent re-distribution of signals to many amplifiers. In
2004, Radial introduced the Radial X-Amp which is an active
device that allows a pre-recorded balanced signal to drive
two guitar type amplifiers at the same time.
References
1 Doug Mitchell, Associate Professor
MTSU Department of Recording Industry
http://www.mtsu.edu/~dsmitche
2 Bob Olhsson Audio Mastery Recording, Project Design and
Consulting
Box 90412, Nashville TN 37209
3 Roger Nichols Mastering
11461 SW 93 St. Miami, FL 33176
http://www.rogernichols.com
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