ASM Hydrasynth
If we examine the front panel in 
chunks we quickly understand how 
this machine works under the hood 
and on the surface. It’s very logically 
laid out in clear blocks of 
functionality. Starting on the left hand 
side, you have master volume and a 
control to switch on glide (glide 
modes include logarithmic, 
exponential and linear curves, much 
like my Andromeda). Then there’s a 
ribbon button (for setting how the 
beautiful long ribbon controller 
affects sounds) and a chord button 
(hold chord until it fl ashes, press up 
to eight notes and then trigger them 
from one key (much like some classic 
polysynths). To examine the ribbon a 
little more – this is a very nifty thing 
indeed and can act as an instrument 
in its own right (played like a 
theremin), for modulation duties, or 
to bend held notes/chords. One 
change I would like here is for the 
pitches on the ribbon to line up with 
the notes on the keyboard (for 
example, press middle C and the 
Next up is the master control 
section. Here, you have eight chunky 
rotary controls, each with a 
corresponding backlit white button 
and with LED rings to show stored/
current values. There are also four 
smaller screens which line up with 
the rotaries – the top third of each 
screen displays assignments for the 
top row of knobs and the bottom 
third, the assignments for the lower 
set of knobs. The middle segment of 
each screen displays the button 
assignments. This works very well in 
practice, with a plethora of 
parameters controllable and viewable 
at the same time. 
But then there’s more! Using the 
macro facility, each knob and related 
button (each button also has several 
trigger modes) can control eight 
user-assigned parameters at once, so 
you can set up your most-used 
performance parameters and tweak 
them out on the fl y during live shows 
or when jamming in the studio. You 
can store and name these macro 
ribbon position directly in line is also 
a C). A couple of other things of note, 
(whilst we are talking performance 
controls) are the unique paddle-style 
pitch and mod wheels. These paddles 
are clever and they do add a more 
nuanced way to move the wheels. 
They also light up in several rather 
lovely colours along with the big 
selector wheel and this can be 
customised when saving patches.
In the next section you’ll fi nd CV 
ins/outs and an arpeggiator (see 
below) and an area called ‘main 
system’. Here you can change 
patches and banks, save, choose 
favourite patches, initialise, and 
create patches out of thin air with the 
random button (a feature I also love 
on Korg’s Wavestate). A nice big 
‘home’ button also takes you back 
home if you ever feel you’ve strayed 
too far! In this section is also the 
biggest screen which deals with patch 
selection (and other tasks) while also 
displaying waveshapes in real time 
(much like Korg’s ‘Logues). 
 EFFECTS, ARP AND CONNECTIVITY 
 The Hydrasynth has plenty of features to treat your sounds. First off, there’s plenty of high 
quality effects in four blocks. The pre and post effects include chorus, fl anger, rotary, 
phaser, lo-fi , tremolo, EQ and compressor, while there are fi ve delay types and reverbs. The 
quality is impressive and allows sounds to really breathe. As mentioned, effects can also 
be modulated, which lets them truly become part of the sound design process. ASM also 
provide a comprehensive arpeggiator onboard with several octave modes, tap tempo (for 
jamming along live), swing, gate, ratcheting with probability (called ‘chance'), 64 preset 
phrases, chord mode, plus latch and sustain. The arp’s deepness certainly does make up 
for the lack of 
onboard sequencer. 
The Hydrasynth has a 
decent array of 
connections including 
wall-wart power connector, 
two front-edge mounted 
headphone sockets, stereo 
unbalanced outputs, MIDI 
in/out/thru (DIN), USB, 
plus sustain and 
expression inputs. Not 
forgetting the CV 
connectivity which is slap 
bang on the front panel 
(for easy access) and 
includes two CV inputs 
and fi ve CV outputs. 
THE ALTERNATIVES
 Waldorf Blofeld 
Keys   £645 
Old  gold! The 
well-respected 
Blofeld includes 
user-sample-upload, 
virtual analogue 
synthesis, three fast 
LFOs per voice and 
four fast envelopes 
per-voice, 16 parts, 
arpeggiator, three 
oscs per-voice (with 
wavetables) and FM. 
 waldorfmusic.com 
 Modal Argon 8X  
 £682 
 Modal’s latest board 
includes all the great 
features of the Argon 
8 but with a 61-note 
keyboard. Features 
include 120 
wavetables, 32 static 
wavetable modifi ers, 
32 high-resolution 
wavetable oscillators, 
eight types of 
oscillator modifi er 
and four fi lter types. 
 modalelectronics.com 
 Nord Wave 2  
 £2069 
 Nord’s most powerful 
synth to date. It has 
a fi ve-octave 
waterfall keyboard, 
four parts and 
includes sample-
based waves, virtual 
analogue waves, 
wavetable and FM 
synthesis, plus 
48-voice polyphony. 
 nordkeyboards.com 
Reviews | ASM Hydrasynth
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