
The U2 Pre/Post FX firmware has a special mode that lets to use two AMT Bricks preamps in the chain.
In this mode, you just select a preamp by pressing on its footswitch, the other preamp goes into the
bypass mode, and simultaneously a preset in the U2 is being changed. The U2 footswitch can be used to
turn on/off the U2 controllers.
Pic. 2 —The U2 Pre/Post two-preamp mode chain (Two AMT Bricks preamps).
The U2 Pre/Post output is OUT L. This is a balanced output.
The output level can be adjusted from + 4dBV to zero and, accordingly, this output can be used with
both line and microphone inputs. When using a cable with a TS connector, the output can be used as
unbalanced.
If the IR cabsim is ON, the signal can be sent to a Line (mixer, sound card, etc), or to an Amp's Return —
if the IR cabsim is OFF.
PreIn
OUT_R
PreOut
PostIn
IN_L
IN_R
OUT_L
ULTIMA U2
A
B
A
B
Guitar
F.SW.A
TRS 3.5mm-TRS3.5 mm
Cable
OUTPUT
AMT Bricks
Preamp 1
AMT Bricks
Preamp 2
Mode Preamp
Mode
TRS 3.5mm-TRS3.5 mm
Cable
Pre/Post FX
Preamp
PostOut