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Input Section

8

5

Source:

 Two, 1 MEG Ohm, instrument inputs designed for maximum flexibility for all

musical instrument applications. DOUBLER ONLY: One low impedence Microphone
input with phantom power.

IIS or Intelligent Input Switching, which can be actuated from the front panel or with
an optional footswitch, is a microprocessor controlled CIRCUIT that senses which
channel is activated and allows for different combinations of channel control. With
your bass plugged into channel 1, the switch will let you access the EQ on channel 1
or channel 2 (i.e. clean/solo). With basses plugged into channels 1 and 2, the IIS will
toggle between Channel 1, Channel 2, or both Channels 1 and 2. Internal jumpers
settings will provide Effects/Tuner send on either Channel 1 or on both Channels 1
and 2.

Level Indicator Yellow LED

: The Level Indicator LED is a visual representation of

your input level. The LED should illuminate moderately under normal playing
conditions. Input gain can be adjusted with the Gain control knob and by the Input
Trim Pots (one for each channel) located on the top of the Micro and Doubler.

Gain Knobs

: The Gain knobs allows for maximum signal level and headroom. Gain for

each channel can be adjusted by the Gain knob and by the trim pot located on top of
the amp.

Input Trim Pots:

 Located on the top, left of the Micro and

Doubler are two Input Trim Pots, one for each channel. See
“A Look Inside” for a diagram of the location of the Trim
Pots.

Using the Gain Knobs and Input Trim Pots:

 The yellow LED

for each channel should illuminate moderately under normal
playing conditions with the gain knob about half way up.  If

you are unable to get the Level Indicator LED to light with the gain knobs about half
way up, using a mini screwdriver, turn the corresponding Input Trim Pot clockwise to
increase the gain. If under normal playing conditions the Level Indicator LED lights
too easily with the Gain Knob at a low position, then, using a mini screwdriver, turn
the corresponding Input Trim Pot counter clockwise to decrease the gain.

Effects Section

The default setting for the Effects/Tuner Send and Return makes it available on
Channels 1 and 2 (see “A Look Inside”). Via jumper settings the Effects/Tuner Send
and Return can be available on Channel 1. There is no option for Channel 2 only.

Parallel Effects/Tuner Send Jack:

 Connect the

cord going to the effects box, pedal or tuner
here.

 OUTPUT SECTION

Dry/Wet Control:

 Use this control to adjust the

level of the signal returning from the effects
chain.

Footswitch:

 An optional mono or dual momentary footswitch can be plugged into the

footswitch jack. When using a mono footswitch you will be able to control the IIS
channel switching function as you would with the front panel switch. When using a
dual momentary footswitch (with a stereo plug) you can additionally control the mute
function as you would with the front panel switch. The footswitch does not disable
the the front panel controls; rather they continue to work in parallel and picks up
where one leaves off. With a dual footswitch the “tip” controls the IIS while the
“ring” controls muting functions. The configuration of the Footswitch is handled by
internal jumpers. See “A Look Inside” for specific jumper settings. The factory default
setting is for a mono footswitch.

Rear Panel Functions

Power Switch: 

Turns unit on/off.

A/C Input:

 Use appropriately grounded, three-prong A/C plug.

Speaker Output:

 One Speakon connectors, wired 1+, 1-.

Cooling Vents:

 The vents on the top of  your Micro or Doubler  need to be kept clear.

Summary of Contents for iAMP

Page 1: ...NJ 08691 Fax 732 678 5140 Email info eaamps com www eaamps com ACKNOWLEDGMENTS Euphonic Audio would like to thank MichaelArnopol Hugh McDonald Todd VanSelus Lynn Keller Michael Rhodes Kasim Sulton and LelandSklar for their invaluable contributions to the development of the iAMP and this manual ...

Page 2: ...power source especially during severe thunderstorms Do not attempt to service the product yourself All servicing should be referred to qualified service personnel at Euphonic Audio Inc Use of the iAMP may cause permanent hearing loss Do not operate for long periods of time at a high volume level or at a volume level that is uncomfortable particularly in a small enclosed area If you experience any ...

Page 3: ...he unit is not under warranty EA will notify you of the repair cost Upon your approval we will return the repaired unit COD for the cost of repair shipping and insurance WARNINGS USED ON THE EQUIPMENT WARNING ATTENTIONOUTLETSWITHATHIRDPRONGGROUNDARE REQUIRED DONOTUSEWITHOUTAGROUNDINGPLUG WARNING TOREDUCETHERISKOFFIREORELECTRICSHOCK DONOT EXPOSETHISAPPARATUSTORAINORMOISTURE The lightning flash symb...

Page 4: ...Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental and or consequential damages so that the above limitation or exclusion may not apply to you This warranty gives specific legal rights and you may also have other rights which vary from state to state Thank you for purchasing the EA iAMP Integrated Musical Instrument Amplifier We ...

Page 5: ...itch 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 ...

Page 6: ...reyour iAMPMicro or Doubler tosuit your playing needs andstyles Locationof Jumpers andTrim Potsasviewed fromthetopof theMicroand Doubler Jumper on JP2 pins 1 2 Channels 1 2 DEFAULT Jumper on JP2 pins 2 3 Channels 1 only Jumper on JP3 pins 3 5 DI is post EQ Jumper on JP3 pins 4 6 DI is pre EQ DEFAULT Jumper on JP4 pins 1 2 Tuner Send is ON Jumper on JP4 pins 7 8 DI is OFF DEFAULT Jumper on JP4 pins...

Page 7: ...r LED to light with the gain knobs about half way up using a mini screwdriver turn the corresponding Input Trim Potclockwise to increase the gain If under normal playing conditions the Level Indicator LED lights too easily with the Gain Knob at a low position then using a mini screwdriver turn the corresponding Input Trim Pot counter clockwise to decrease the gain Effects Section The default setti...

Page 8: ...edback especially when using a microphone Anotch filter attenuates a very narrow frequency range typically not wider than one note To use it raise the volume on channel 2 until feedback begins to occur Then turn on the notch switch and rotate the knob until the feedback is eliminated ToneShaping The iAMP Micro and Doubler features a simple yet extremely musical 3 Band EQ The elegant design and pri...

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