KEYBOARDPARTNER HX3 Drawbar Expander Version 5, Manual

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1.0 Jack Connections
HX3 Drawbar Expander connectors on back panel, left to right:

SWELL PEDAL
¼” stereo jack. Expression pedal input is compatible with Yamaha FC-7
and similar expression pedals (direct connection preferred for speed/accuracy, but may
also be remote controlled by MIDI control change, controller 11). Plug connection: Sleeve =
ground / potentiometer start, ring = potentiometer tap, tip = potentiometer end.

FOOT SWITCH
¼” stereo jack. Single or double footswitch controls simulated rotary speed
as well as external rotary cabinet speed: SLOW/FAST on plug tip, RUN/STOP on plug ring.
Please use latching foot switches; momentary (button type) switches are not supported. If
single footswitch is used, Rotary is always on RUN (no plug ring, input grounded by plug
sleeve).

MIDI IN 1 Accepts MIDI data from master keyboard 1 or bass pedal

MIDI IN 2 Accepts MIDI data from master keyboard 2 or bass pedal

9V DC Use stabilized DC wall wart 9 to 12V with at least 500mA current output, inner/outer
plug diameter 2.1/5.5 mm on DC input jack. Polarity: Plus on inner tip.

BASS Separate audio output for bass pedal sound

MAIN Plain Organ output, as sent to external Leslie speaker

AUDIO 1/L Audio output left channel of internal rotary simulation

AUDIO 2/R Audio output right channel of internal rotary simulation

USB USB B-type connector for MIDI over USB, for updates and configuration by HX3.5
Editor application.

MIDI OUT Sends MIDI data of HX3 Drawbar
Expander’s own controllers

HEADPHONE Stereo output of internal rotary simulation, headphone amplifier

ROTARY STATUS 3 LEDs indicate status of external Leslie ®, green = on, red = slow,
yellow = fast

EXTERNAL ROTARY Standard 11-pin Leslie® speaker connector