Sequential OB-6 Installation and operating instructions

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OB-6 OS 1.5.5 Addendum
OB-6 OS version 1.5.5 adds a number of new features not covered in the main
Operation Manual.
New Features in OS 1.5.5
• Arpeggiator Beat Sync. is Global parameter quantizes keyboard perfor-
mance of the arpeggiator so that notes are quantized to the current clock
divide setting.
• MIDI note output from the arpeggiator and sequencer. is allows you to
use the OB-6 arpeggiator or sequencer to drive other sound modules.
• When in Unison mode, you can now transpose Sequencer playback without
having to hold down the  button.
Checking Your Operating System Version
If you’ve just purchased your OB-6 new, OS 1.5.5 may already be installed. If not,
and you want to use the new features just described, you’ll need to update your OS to
version 1.5.5 or later.
To update your OB-6 OS, you’ll need a computer and a USB cable, or a MIDI cable
and MIDI interface. To download the latest version of the OB-6 OS along with
instructions on how to perform a system update, visit the Sequential website at:
https://www.sequential.com/updating-ob-6-os/
To check your OS version:
1. Turn on your OB-6. The OS version number is briey displayed in the main
bank/program display.
2. If your OS is out of date, download the latest version from the URL above and
update your instrument using the instructions included with the download.

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Arpeggiator Beat Sync
is option quantizes keyboard performance of the arpeggiator so that notes are
quantized to the current clock divide setting. Previously, changing notes or chords
on the keyboard during arpeggiator playback would retrigger notes whether or
not the note was played precisely on the beat. With this option enabled, arpeggia-
tor note playback occurs only on the beat — regardless of the precision of your
playing.
To enable Arpeggiator Beat Sync:
1. Press the globals button twice to activate the lower set of parameters.
2. Press program selector button 9.
3. Use the bank and tens buttons as decrement and increment buttons to step
through available settings and select on .
4. Once you’ve chosen the desired setting, press the globals button again to
exit.
MIDI Note Output from the Arpeggiator and Sequencer
e OB-6’s arpeggiator and sequencer can now output MIDI note numbers. Any
notes that you hold on the OB-6 keyboard will be arpeggiated according to the
current settings of the arpeggiator and output over MIDI (or USB) as MIDI notes.
Similarly, any notes output by the sequencer will be output over MIDI (or USB) as
MIDI notes. You can use this feature to drive other MIDI-equipped devices such
as synthesizers and drum machines.
To enable MIDI Note output from the arpeggiator and sequencer:
1. Press the globals button then press program selector button 5 (param xmit).
2. Use the bank and tens buttons as decrement and increment buttons to
step through available settings and select either cas or nas . Your choice
depends on whether you were previously using CC or NRPN to send MIDI
controller data to your external device, as either setting will send MIDI
notes out. Choose cas if CC. Choose nas if NRPN.
3. Once you’ve chosen the desired setting, press the globals button again to exit.

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To control an external MIDI device:
1. Connect the MIDI or USB output of the OB-6 to the MIDI or USB input
of the external device, depending on which type of connection the external
device requires.
2. On the OB-6, press the  button, then press program selector button 9
(midi out)to select nid (midi) or usb (usb).
3. Press the  button again to exit the Global menu.
4. On the external device, set the MIDI Channel and MIDI Receive port to
match the OB-6.
5. Hold down a chord on the OB-6 or start sequencer playback. e external
device should be triggered by the arpeggiated or sequenced notes.
Transposing Sequencer Playback
As you know, when working with sequences, you can transpose the key of a
sequence during playback by holding down the  button and pressing a key
on the OB-6 keyboard (or external keyboard controller if you’re using the OB-6
module).
With OS 1.5.5, if you’re using a program with Unison enabled, you don’t need to
hold down the  button. You can simply press a note on the keyboard and the
sequence is transposed to that key. (When not using Unison, you must still hold
down the  button to enable transposition.)
Remember that “Middle C” is the reference point. Playing a note above middle
C transposes the sequence higher by that interval. Playing a note below middle C
transposes the sequence lower by that interval.

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San Francisco, CA 94133
USA
www.sequential.com