Sequential Prophet 6
Sequential Prophet-6 | Reviews
85
down the line for replacement/service if 
necessary – a clever move by DSI which 
should help ensure the future longevity 
of the instrument. The top panel is laid 
out clearly in a P5-style with the 
graphics silkscreened directly onto the 
panel and the switches are a mixture of 
later-style DSI push buttons and 
P5-type selectors with LEDs. These all 
feel sturdy and should stand up to 
long-term abuse on and off stage. The 
plastic/rubber-coated/silver knobs will 
be familiar to owners of the Prophet 08, 
Pro 2 and P12, and feel good with a 
nice amount of resistance, though there 
is some play in them. 
Back to the keyboard for a moment. 
The four-octave design keeps the 
footprint small which is useful for 
smaller spaces and makes the P6 easy 
to transport. Undoubtedly, some players 
will prefer a fi ve-octave keyboard (and 
personally speaking I would have liked 
an extra octave, as I think fi ve is perfect 
for a performance synth) but most of 
the time, four octaves is suffi cient and 
chances are the P6 will be part of a 
multi-board rig on stage at least, thus 
you’ll not always require two hands on 
deck simultaneously. When you do 
require that extra range you can use the 
very fast octave switches or connect an 
external MIDI board. For soloing and 
most two-handed duties, four octaves is 
fi ne and I’ve never had an issue soloing 
on my Moog 
Voyager which is 
only three and a 
half octaves. Food 
for thought! 
Feels good
Feel-wise, the 
semi-weighted synth-action keyboard is 
massively playable and buttery – it’s 
perfectly balanced for playing fast and 
accurately. The velocity and aftertouch 
response is also near perfect allowing 
smooth and predictable modulation 
SPECS
Oscillators: 2 new discrete 
VCOs per-voice, 
Continuously variable 
waveshape per oscillator, 
Variable pulse width, Hard 
sync, Triangle sub-octave 
generator (oscillator 1) per 
voice, Low frequency mode 
(oscillator 2), Keyboard 
tracking on/off (oscillator 
2), Oscillator slop 
Mixer: Oscillator 1, 2 and 
sub-osc levels, plus white 
noise
Filters: Two-pole resonant, 
high-pass fi lter with 
velocity, Four-pole, 
resonant, self-oscillating 
low-pass fi lter, Velocity and 
bi-polar amount controls 
plus full and half keyboard 
tracking controls
Envelopes: 1x fi lter ADSR, 
1x amp ADSR
LFO: Five wave shapes + 
noise source , Clock sync 
(internal or external MIDI 
clock), 5 Mod destinations 
Poly Mod
Sources: fi lter envelope 
(bi-polar) and oscillator 2 
(bi-polar), 5 Destinations
Aftertouch: channel 
aftertouch with bi-polar 
amount, 6 destinations
Clock: Tap tempo, BPM 
control, MIDI clock/internal 
sync
Arpeggiator: 10 timing 
divisions, Up to 3-octave 
range, Up, down, up/down, 
random, and assign modes
Polyphonic sequencer: 64 
steps with rests/ties, 
Transposition when holding 
record/pressing a note
Effects: Stereo analogue 
distortion, Dual, 24-bit, 
48kHz digital effects, Delay 
sync, True bypass 
Performance controls: 
Full-sized, semi-weighted, 
4-octave keyboard with 
velocity and aftertouch, 
Backlit pitch and mod 
wheels, Transpose controls, 
Hold switch, Polyphonic 
glide, Unison mode with 
confi gurable voice count, 
Live panel mode, 500 user 
and 500 factory programs 
(10 banks of 100 programs 
each)
Connections: Left/mono 
and right audio outputs, 
Headphone output, MIDI in, 
out, and thru ports, USB, 
Low-pass fi lter cutoff pedal 
input, Volume pedal input, 
Sustain footswitch input, 
Sequencer start/stop 
footswitch input
Dimensions
813 x 323 x 117mm
Weight:
9.5kg
The P6 features two 
24-bit, 48kHz effect 
processors. The effects are 
newly designed and when 
off, provide true bypass so 
that the pure analogue 
signal path isn’t adversely 
affected. Processor A 
provides bucket brigade 
delay, digital delay, 
chorus, and two phaser 
types, while processor B 
provides the same, plus 
hall, room, plate and 
spring reverb emulations. 
The quality and 
musicality of the effects is 
impressive all round and 
they really enhance the 
already great tone of the 
P6, plus the delays can be 
sync’d internally or to 
MIDI clock. You can also 
tap the sides of the P6 to 
get authentic spring reverb 
rattle! Further, each effect 
has a mix level control and 
two real-time dials, each 
with their own display 
where different parameters 
can be tweaked. For 
example, the spring reverb 
has tweakable tone and 
decay parameters, while 
the chorus has rate and 
depth; it’s all very intuitive 
too. Finally, there’s a 
handy ‘pan spread’ 
feature that spreads the 
six voices across the 
stereo fi eld. Lovely!
Effects
The P6 includes 
a four-pole 
resonant low-pass 
self-oscillating fi lter 
and a two-pole 
resonant (static) 
high-pass. They can 
be combined to form 
a band-pass fi lter, 
extending beyond the 
P5’s original scope.
VCFs
Modulation options 
include an audio-rate 
LFO, two snappy 
envelopes, the mod 
wheel, aftertouch, 
pedals, velocity 
and a ‘polymod’ 
section with 
several destinations. 
Oscillator 2 can act 
as a secondary LFO.
Modulation
The keyboard is massively playable 
and buttery, and the velocity and 
aftertouch response near perfect 
FMU297.rev_sequential.indd 85 9/8/15 5:24 PM




