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14 IR CAPTURE
METHOD 2 SETUP: MIC + DI
Method 2 (“MIC + DI”) requires a microphone, a preamp, and a DI Box with the special capability to convert
speaker level to line level. Our own load box, the
Fractal Audio X-LOAD LB-2
is ideal for this application. The “MIC
+ DI” setup completely “factors out” the tonal influence of the power amp, allowing almost any amp to be used.
A neutral power amp is still preferred, but even a guitar amp will produce excellent results. If you do use a guitar
amp, you should connect to its Effects Return if possible, but even the front input can be used, as the Axe-Fx III is
able to remove distortion, completely separate the speaker response, and produce a pure and accurate IR.
Connect the mic to the input of the preamp.
Connect the output of the preamp (or mixer) to
INPUT 2 LEFT
on the Axe-Fx III.
Connect
OUTPUT 2 LEFT
of the Axe-Fx III to the input of your power amp. The Effects Return
of a guitar amp can be used, or even the instrument input with a very clean setting.
Connect the amplifier’s speaker output to the speaker level input of the DI box. Be sure
to use a DI box that is specifically designed to work with speaker level signals and one
that does NOT have any on-board cabinet emulation. You can also use the DI output
of your amp if it has one, as long as it is not a speaker-emulated output.
Connect the Speaker Thru jack of the DI box to the input of your speaker.
Connect the Line Level Output of the DI box to
INPUT 2 RIGHT
on the Axe-Fx III.
On the Config page of IR Capture utility in the Axe-Fx III, set CAPTURE METHOD to “MIC + DI”.
On the AUDIO page of the I /O menu under SETUP, ensure that INPUT 2 MODE is set to “STEREO”.
Follow the capture instructions on
p. 125
to perform the capture.
MIC
PRE
SPEAKER
LEVEL
DI BOX
SPEAKER
MIC
Mic Pre Line Out
Mic Pre In
Speaker Thru
Speaker In
.
Amp Speaker Out
Speaker In
IN 2 L
IN 2 R
OUT 2 L
D.I. Line Out
GUITAR AMP
(or any power amp)
To Amp Input
or FX Return
