Connections
PWR:
Accepts power from an external AC
Adapter. See “Power Requirements” for
more information.
MIDI IN:
7pin DIN connector that receives MIDI
information from an external source (such
as a MIDI footcontroller) which transmits
MIDI commands.
MIDI THRU:
7pin DIN connector that passes on the
MIDI information which is received at the
MIDI IN
jack to other MIDI devices.
INA & B:
Standard 1/4” mono jacks that provide an
audio signal to the GRX4 loop(s) from an
external source such as; a
guitar
, an
effects loop send,
a
preamp output
or an
effect pedal/processor output
.
SND1 2 & 3:
Standard 1/4” mono jacks that provide an
audio signal to an external device such as
an
effect pedal/processor input
.
SND4/NC:
Instead of the
SND1 2 & 3
description
above, this jack can also provide an
isolated (prevents ground loop noise)
normally closed latched or momentary type
switching function to control amplifiers or
effects that have footswitchable functions.
RTN1 2 3 & 4:
Standard 1/4” mono jacks that accept an
audio signal from an external device such
as an
effect pedal/processor output
.
OUTA:
Standard 1/4” mono jack that provides an
audio signal from the GRX4 loop(s) to an
external device such as; a
guitar amplifier
input,
an
effects loop return,
a
power amp
input
or an
effect pedal/processor input
.
OUTB/NO:
Instead of the
OUTA
description above,
this jack can also provide an isolated
(prevents ground loop noise) normally
open latched or momentary type switching
function to control amplifiers or effects that
have footswitchable functions.
INA BUFFER:
To de-activate or activate (factory default)
this instrument level ONLY buffer, power-
off the GRX4 and remove the bottom cover
(you don’t need to remove the two screws
next to the MIDI jacks to remove the
bottom cover, just the other eight…). The
buffer on/off pushbutton switch is near the
INA jack…
Switch IN (near PCB edge) : Buffer ON
Switch OUT (away from PCB) : Buffer OFF
!!WARNING!! DO NOT CONNECT ANY OUTPUT OF A
POWER AMPLIFIER TO ANY JACK ON
THE GRX4. THIS WILL DAMAGE THE
GRX4 AND THE POWER AMPLIFIER.
!!WARNING!! DO NOT INSERT ANY PLUGS INTO THE
INB OR RTN4 JACKS WHEN USING
EITHER THE SND4/NC OR OUTB/NO
JACK AS AN ISOLATED CONTROL
FUNCTION. THIS CAN DAMAGE THE
GRX4 & THE DEVICE BEING
SWITCHED.
Power Requirements
[email protected]
Use Boss PSA Adapter Only
5.5mm/2.1mm Barrel Connector
Warranty
This product is warranted against failures due to defective
parts or faulty workmanship for a period of one year after
delivery to the original owner. During this one year period,
Axess Electronics will make any necessary repairs without
charge for parts and labor. However, shipping charges to
and from the repair location must be paid by the owner.
This warranty applies only to the original owner and is not
transferable.
This warranty does not cover damage to the product as a
result from accident or misuse.
This warranty will be canceled at the sole discretion of
Axess Electronics if the product has:
1. Any signs of tampering, unauthorized service, or
modifications.
2. Any damage resulting from physical abuse or failure to
follow the operating instructions.
Axess Electronics’ liability to the owner and under this
warranty is limited only to the repair or replacement of the
defective product. Call or write to Axess Electronics prior
to shipping the product for repair.
Axess Electronics reserves the right to make any changes
and/or improvements to the design of this product without
any obligation to include those changes in any previously
manufactured units.
How To Reach Axess Electronics
Mail: Axess
Electronics
251 Queen Street South #278
Mississauga, Ontario L5M-1L7
Canada
Tel.:
E-mail: [email protected]
Website: http://www.axess-electronics.com
GRX4
Guitar Router/Switcher
•
The
GRX4 Guitar Router/Switcher
is a
passive, no noise, sonically transparent guitar
audio router and switcher.
•
Relays with gold-plated contacts route the
audio signal with absolutely no tone
coloration or degradation.
•
The signal path is configured as a series
chain of three bypass loops (which can also
be used for parallel fx splitting when a plug is
not inserted into the return jacks) and one full
loop which can also be used for "A or B"
switching, parallel FX mute switching or
isolated NO/NC latched or momentary control
function switching of a guitar amp's channels.
•
An input (INA) buffer can be activated via an
internal switch to optimize pickup tone and
prevent HI-Z guitar signals from being loaded
down or picking up noise (see the
“Connections” section for more information).
•
Capable of switching both instrument level
(pedals) and line level (rack - with the buffer
deactivated) audio signals.
•
Can be used with any MIDI footcontroller
capable of sending Control Change or
Program Change messages.
•
An infinite number of GRX4's can be used
simultaneously or added to existing rigs with
other switchers.
•
Powered by a 9VDC Adapter (like those from
Boss) with a 5.5mm/2.1mm barrel connector.
•
Housed in a compact (7.50" x 4.75" x 1.50")
and rugged .064” thick aluminum enclosure
for years of reliable use and performance.
•
Brushed finish with black anodize coating and
laser-engraved printing.
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