T
HIS QUOTE FROM
B
ASS
P
LAYER
M
AGAZINE MIGHT SAY IT ALL
.
If
you are new to to the range and flexibility built into the EA
Tone Shaping Section, we offer this primer to help get a good
working knowledge of the iAMP Tone Shaping. Although many are
used to calling this the EQ section we use the more accurate term,
“Tone Shaping”.
We chose to call this the Tone Shaping section because that is exactly
what it does. It allows you to custom contour your tone. The term
“Equalizer” is used to boost or cut specific frequencies inherent in
the listening environment itself, to “equalize the room.” Instead, the
iAMP800 provides you with extremely pliant tone controls to allow
you the freedom and creativity to develop a wide variety of tones
from any instrument you play through it.
That being said, it is important to remember most listening
environments (clubs, auditoriums, rehearsal halls, etc.) actually
enhance the frequencies below 50Hz of a bass rig, adding “room
resonance” to the sound emanating from the woofer. Conversely,
people in the room will absorb the higher frequencies created by the
midrange and tweeters. Depending upon the timbre desired, you
may wish to keep that in mind, as the sound you are hearing directly
in front of your rig is not the same as the sound perceived in the
listening environment. When in doubt, back off the bass a little and
boost the treble a bit. That way you will be felt as well as heard.
“The iAMP offers a lot of tone-shaping
flexibility: Four bands of parametric EQ
plus four well-voiced presets provide almost
unlimited tone-tweaking potential.”
5
B — T
ONE
S
HAPING
S
ECTION
8
MAIN CONTROL:
Adjusts the level going into the power amplifier section. The iAMP800 was
designed to be exceptionally clean, accurate and versatile. If you want a “dirtier” overdriven-
type sound, it is best to use an effects device through the EFFECTS loops (see EFFECTS
SECTION).
OUTPUT CLIP LED:
The iAMP800 has a limiter that will keep the amp from sustained
clipping. Lighting the LED is not dangerous. When the OUTPUT CLIP LED lights it is just an
indication you are at maximum power.
DI OUTPUT LEVEL:
Adjusts the level of the DI, for finer control of levels going to an external
mixing board or recording device. Note that the ground pin of the DI XLR connector is
permanently lifted from ground.
POST/PRE EQ:
Sets the DI output to send either a clean (PRE) or colored (POST) signal—
created in the TONE SHAPING SECTION, including PRESETS—to external sources.
DI ON/OFF:
Turns DI on and off.
XLR OUTPUT PLUG:
For sending a balanced signal directly to low noise studio equipment.
TUNER JACK:
Allows for an external tuning device or can be used for an unbalanced
Line Out signal.
PHONES JACK:
Allows the use of headphones for silent practice. When using just the
headphone jack for silent practice, be sure that the SPEAKER ON/OFF push button switch is
in the OFF position. For best results we recommend the use of the lower impedance
headphones, i.e. 16 ohms.
C — O
UTPUT
S
ECTION
EFFECTS LEVEL:
Use this control to adjust the level of the signal returning from the effects
chain.
SEND JACK:
Connect the cord going to the effects box or pedal here.
RETURN JACK:
Connect the cord coming from the effects box or pedal here.
D — E
FFECTS
L
OOP
(S
ERIES
)
EFFECTS LEVEL:
Use this control to adjust the relative level of the dry (unprocessed) signal
to the wet (processed) signal.
SEND JACK:
Connect the cord going to the effects box or pedal here.
RETURN JACK:
Connect the cord coming from the effects box or pedal here.
E — E
FFECTS
L
OOP
(P
ARALLEL
)
