D
ESIGN
P
HILOSOPHY /
O
VERVIEW
Our goal was to create extremely small yet powerful, state of the art, fully featured
integrated musical instrument amplifiers whose exceptional sound and volume
belies their size and weight. The 2.5 pound, 550 watt, dual channel iAMP®Micro
and iAMP®Doubler might just be the perfect amps for doublers, teachers, players’
riding mass transit or those that are just tired of hauling gear.
With a revolutionary new ultra lightweight, switching power supply and power
amplifier, Intelligent Input Switching, 3 levels of configuration, a balanced DI,
effects loop, variable high pass filter and more, in a footprint of ½ the size of a sheet
of paper, the Micro is the most technically advanced, best sounding musical
instrument amplifier on the market today.
With all the features and power of the Micro and additional features such as Mic In,
Phantom Power, variable 180
o
Phase Control, and variable Notch Filter, the Doubler
is designed especially for the upright or doubler. The Doubler is the perfect amp for
those who use a mic with a magnetic/piezo or the electric/upright player.
Intelligent Input Switching (IIS): The Intelligent Input Switching feature of the
Micro and Doubler is a microprocessor controlled input section that automatically
senses how many instruments are plugged in and changes the way the amp
functions. If you have one instrument and want a “normal” and “solo” option, the
IIS will switch between the EQ on Channel’s 1 and 2. If you switch back and forth
between two instruments the IIS will allow you to access either instrument or both.
The Micro and Doubler has 3 levels of configuration. The first level represents
those controls that the player uses on a daily basis. These are input level, Intelli-
gent Input Switching, EQ, Master Volume, Wet/Dry control of the effects loop, and
Muting. Additionally, on the Doubler, the Notch Filter, Phantom Power and Phase
Control can be accessed via the front panel.
The second level of control, are those things that are adjusted very infrequently. Via
trim pots accessible from the top of the amp, players can adjust the input gain for
each channel and the DI level as well as the variable High Pass Filter
Finally, EA or an EA dealer can further configure the amp via internal jumpers.
These adjustments are usually one-time changes that reflect the way in which you
use the amp. The DI can be configured to be pre or post EQ. The Mute Switch can
be configured to mute, in addition to the Speaker, the DI out and/or Tuner/Effects
send. The Effects/Tuner send can be configured to be active on either channel 1 or
on both channel 1 and channel 2. Finally, The line voltage of the Micro and Doubler
can be set to 100/120 or 240.
10
3
Changing Line Voltage on Micro and Doubler:
Changing the line voltage should
only be done by a qualifed service technician. Using the Micro or Doubler with an
incorrect line voltage will void the warranty.
With the
power off
and the unit
unplugged
remove the top. Move the
blue wire
to the appropriate setting for your
country.
115v
Jumper
230v
Jumper
