Dave Smith Instruments
T 
om Oberheim has 
come back into the 
fold with a sonic 
boom with the help of 
old friend/competitor 
Dave Smith. The 
OB-6 essentially uses 
the same chassis, effect engines and 
basic design as the Prophet-6 but 
Oberheim has popped in SEM-based 
voice cards, added to his much-loved 
SEM-based ‘state variable’ filter (aka 
Filter 2 on DSI’s Pro 2 synth). No 
doubt this has helped to keep 
production/R&D costs down without 
design is harder on the eyes than the 
elegant P6’s front panel and several 
functions are labelled above the dials 
which makes them harder to read at 
certain angles. Compared to the 
Prophet-6, things have been moved 
around, so the volume control is now 
on the right (I prefer it on the left to 
keep your right hand free for 
playing), but also the effects have 
been moved from the left to the right 
side, which is a more logical place in 
terms of following the signal flow. 
The OB-6 shares the dimensions, 
basic OS/firmware, connectivity, 
similar walnut end panels, solid- 
feeling red-backlit performance 
wheels (pitch and mod) and the 
general built-like-a-tank feel of the 
P6. It’s weighty, yet still portable. 
The case/chassis is all metal, the 
dials feel sturdy, the patch select 
switches click reassuringly and, 
although the smaller selector 
switches have some give, they are 
solid. One of my favourite features 
on my P6 (and OB-6) is the 4-octave 
keybed – it’s one of nicest feeling 
synth-action keybeds and is perfectly 
balanced for every style of playing. 
compromising the signal path 
quality, which is a great thing for 
audiophiles and cost conscious folks 
alike – not that the OB-6 is cheap 
though, at around £2,250 currently. 
The OB-6 looks great and with its 
blue-line-adorned front panel and 
chunky knobs (which all transmit/
receive MIDI CCs) it’s throwing back 
to the design of the classic OB-Xa 
and OB-8. A similar vintage font is 
featured, along with familiar black 
preset selector buttons with red 
LEDs and the whole thing looks very 
future/retro, though the striped 
THE PROS & CONS
+
Sounds like a 
modern Oberheim/
DSI cross-breed with 
plenty of texture 
from the 2-pole 
state-variable filter
Good mod facilities 
onboard, plus arp 
and poly-sequencer, 
and dual digital 
effect engines
Well-built, knob-per-
function ethos with 
no menu diving
-
No splitting/layering 
and no external input 
to the filter/effects 
Some panel labelling 
obscured by dials at 
some viewing angles 
Sequencer transpose 
only if you hold 
record while pressing 
a key. No arp/
sequencer MIDI out
87
Dave Smith Instruments OB-6 | Reviews
FMU307.rev_dsi.indd 87 15/06/2016 18:12




