Specifications
Amp Connector Pinout
The Rack Gizmo amplifier function switch connectors are female DIN-8 jacks. When a Function Switch is activated on
the Rack Gizmo, the corresponding pin is shorted to the connector’s ground (shield). Activating Function Switch 1
shorts pin 1 (as numbered above) to the connector’s ground. Activating Function Switch 2 shorts pin 2, and so on. This
happens on both the Amp 1 and Amp 2 jacks. Please note that the amplifier jacks are not electrically connected to each
other or to any other part of the Rack Gizmo circuit, so it’s safe to connect a different amp to each jack.
RJM Music produces a wide range of cables to allow the Rack Gizmo to control various amplifier models. Please contact
your RJM Music dealer or the RJM Music web site to find the correct cable for your amp.
(note: if you wish to make your own cable, Switchcraft part number 15BL8MX or Preh part number 71408-080 are good
choices to use for the 8-pin male DIN connector.)
Standard 1U EIA rack enclosure
19 (W) x 1.75 (H) x 7.25 (D) inches
48.3 (W) x 4.5 (H) x 18.5 (D) cm
9VAC or 12VDC @ 550mA
(9VAC or 12VDC @ 700mA for full-stereo model)
5.5mm OD, 2.1mm ID x 9.5mm barrel connector (either polarity)
Provided over pins 6 and 7 of the MIDI In jack (and pins 1 and 2 of the front panel
MIDI jack)
Voltage provided is the same as power applied at the Rack Gizmo power jack
9VAC, maximum 450mA current when using provided AC adaptor
(max. 300mA for full stereo version with provided AC adaptor)
256 programs, arranged in 2 banks of 128
Memory is non-volatile and requires no backup battery
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