Aphex Systems 1788 Leaflet

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If someone says the word 
“Aphex,” your first response will 
likely be,”Aural Exciter,”right?
Yes, that piece is the thing most 
of us associate with the Sun 
Valley, Calif. company, but if 
there is a shred of justice out 
there in the big wide world, that 
exchange will soon go like this: 
“Aphex?””I788.”
Marvin Caesar, Aphex presi dent, 
has been bending ears for a 
while now about the effects of 
long mic lines and splitters on a 
system in terms of both loading 
and degradation of sound quali ty. 
He has been an evangelist for 
the idea of mic-pre’s that live as 
close to the source as possible 
to overcome the problem. (BTW, 
that is the same approach the 
Yamaha PM1 D, the DiGiCo 
D5 
and the digitally controlled 
Showconsole use, given the fact 
that the pre’s are separate from 
the control surface anyway.) 
Like many of you, we listened 
with interest until we realized 
that what he was proposing 
meant not using the beloved 
pre’s in our favorite consoles, 
which is
the point at which most 
of our eyes glaze over and we 
start thinking of possible reasons 
he could be wrong. Well, he’s 
right.
for the MON (Aux) output. 
The optional digital module 
con sists of a 15-pin D-Sub for 
the AES, a TDIF D-sub and a 
Toslink for the ADAT, and two 
BNCs for word clock in and 
out.The con trol connectors 
are MIDI In,Thru and Out, RS-
232, RS-422 In and RS-422 
Link Out.While these control 
connec tions  are  computer-type 
RS422 and 232 connectors, 
Aphex pro vides a cool little 
serial/XLR adapter that 
allows you to run the RS-422 
remote signal over a couple 
of unused snake chan nels. 
Control of multiple units is 
made by daisy-chaining via 
the RS-422 from unit to unit. 
Aphex provided a hardware 
remote for this review, but 
as setup time on our gig was 
limited, we opted not to use 
it. I had the advantage of a 
short tutorial at Aphex prior to 
the gig, and Paul would have 
been approaching the system 
cold. So we decided that I 
would control the units from 
MON, rather than having Paul 
control them from FOH. (Aphex 
says that when many units 
are linked together via serial 
control, the system can be 
sluggish. Aphex has developed 
a new control system that uses 
LAN technolo
gy over CAT5. 
The speed of con trolling 16 
Aphex 1788 Remote Controlled Mic Pre-Amp
“He was impressed enough with
the sonic difference that he is 
considering buying 24 channels of 
1788s instead of a new console. “
The Gear
(Editor’s Note: This may be the 
toughest review I have ever 
had a part in. Because, to be 
very plain spoken, l have never 
used a single piece of gear that 
made this much difference in the 
overall sound of a system, and 
it will be hard to write about it 
without sounding like an Aphex 
shill. So please understand 
going in that Aphex did not 
write the review or influence 
it. They got the same fact 
check opportunity as any other 
company, but noth ing else. We 
even returned the gear in just 
72 hours-far less time than 
we usually take. No money or 
gear changed hands, and at 
this point, Aphex is not even an 
FOH advertiser. Now that that 
is out of the way...)                   
units is the same as controlling 
one of the old units The totally 
new software is PC and MAC 
compatible.)
It is all solid and well built. 
The only complaint would be 
the aforementioned crowding on 
the back panel-pulling a single 
XLR connector after everything 
was plugged in was a bit of a 
challenge for those of us with 
stubby fingers.
From left to right on 
the front panel are eight 
LED ladders for monitoring 
headroom, with a numbered 
push-button under each for 
activating con trol of that 
channel. Surrounding the 
meters are indicators for Input 
Gain (switchable to FOH and 
MON output levels), mute, 
phantom power,-26 dB pad, 
70 Hz LoCut, polarity reverse 
and the limiter (one of the 
unit’s coolest and most useful 
features). Next to the channel 
buttons is a switch that allows 
you to choose multiple channels 
to control at the same time. 
(Note that when adjusting 
gain on multiple chan nels, 
the changes are relative. In 
other words if there was a 
6dB difference in the channels 
to begin with, that difference 
will remain as gain is raised 
or low ered.) Surrounding the 
single gain knob are switches 
to choose between gain stages 
(input and output for both FOH 
and MON) and the switches for 
the options mentioned earlier
The Aphex 1788 is a 
pretty neat piece of gear. In 
two rack spaces, you get eight 
channels of mic pre’s complete 
with a splitter. Stock, the units 
provide separate analog outs for 
FOH and MON, and the optional 
digital out provides simultane ous 
digital streams in TDIF, AES/EBU 
and ADAT LightPipe formats. 
Note that all three digi tal  outs 
are active at the same time. 
Recording resolution can be as 
high as 96 kHz in the AES/EBU 
stream and 48 kHZ with the 
others.
The crowded back panel has a 
mic input XLR and FOH (Main) 
output XLR for each channel, and 
a 25-pin D-sub (Tascam format