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The
2x4 Audio Controller is a compact (1 rack space),
comprehensive audio switching and control system
designed to interface a wide variety of effects and
amplifiers. Easily configured for use with any type
of system, the 2x4 can be the heart of a simple
pedal-based system, to a more elaborate line level
"rack effects" rig, or any combination in between.
The 2x4 consists of 8 series audio routing loops
and 4 "footswitch type" Control Functions, 2 of
which can be used as switchable audio outputs
(mutes). These 12 functions are MIDI controlled via
control change numbers, and can be interfaced with
a number of different control devices. Of course,
the 2x4 is best suited for use with the CAE RS-10
MIDI Foot Controllers. The RS-10MKII
is a perfect companion for the
2x4
and is fitted with a rugged XLR connector, as is
the 2x4, for reliable, easy interfacing. The 2x4
Audio Controller utilizes passive relay based
switching in it's signal path for the utmost sonic
transparency. In addition, unlike other relay based
switchers, the 2x4 uses 2 separate relays for each
loop; 1 for the send, and 1 for the return. This
eliminates any high gain crosstalk and/or
oscillations when using preamps or fuzz pedals in
the loops, resulting in quieter, more predictable
operation. Switching noise is also kept to a
minimum. The 2x4 consists of 2 series chains
(A&B) of 4 loops each. The inputs and outputs
of both chains are accessible on both the front and
rear panels of the 2x4, the front panel inputs
having priority over the rear. The input of each
chain contains a low noise signal buffer to
eliminate signal loss when feeding the chains with
high impedance signal sources such as passive
guitars. Both buffers can be hard-wire bypassed on
the front panel for a completely passive signal
path. The loop sends and returns are located on the
rear
panel of the unit
as is the MIDI In, Out/Thru and 9vac power input.
The front panel also contains the Control Function
jacks as well as the switchable audio outputs. In
addition, there are LED's to indicate Loop/Control
Function status and power. As mentioned before, the
front panel also utilizes an XLR connector for
interfacing CAE RS-10 MIDI Foot Controllers.
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