Page 6
MICROPHONE PREAMPLIFIER
Page 7
Instruction Manual
2. QUICK START
AUX
OUTPUT
CH 8
MIC IN
LINE OUT
CH 7
MIC IN
CH 6
MIC IN
CH 5
MIC IN
CH 4
MIC IN
CH 3
MIC IN
CH 2
MIC IN
CH 1
MIC IN
MODEL 1788A - 8 Channel Mic Pre
Aphex Systems Sun Valley, CA
MIDI
IN
OUT
THRU
90-260 V~50/60Hz 60 WATTS
RS-232
WORD
CLOCK
OPTICAL
AES/EBU OUTPUT
LAN
TDIF
ADAT
IN
OUT
UTIL
1 2 3 4
ON
LINE OUT
LINE OUT
LINE OUT
LINE OUT
LINE OUT
LINE OUT
LINE OUT
5
6
7
8
9
Optional
Digital Module
2
1
3
4
10
11
12
1. POWER RECEPTACLE:
works on 80 to 280
VAC without any jumper changes or switches.
2. MIDI CONNECTORS:
provided for controlling
the Model 1788A remotely.
3. LAN CONNECTOR:
for standard CAT5
Ethernet connection.
4. RS-232 COM Port:
for downloading new
firmware into the preamp.
5. DIP SWITCH:
sets priority for external
synchronization.
6. AES/EBU DB-15 DIGITAL OUTPUT:
provides
four stereo pairs of AES3.
7. ADAT OPTICAL OUTPUT:
provides direct
connection to ADAT compatible equipment.
8. TDIF DIGITAL OUTPUT
(Tascam format):
routes all eight channels directly to a Tascam
DA-88 or compatible input.
9. BNC Clock I/O:
syncs the Model 1788A to an
external clock source (word clock or super-clock)
and links multiple 1788A’s to the same clock.
10. AUX ANALOG OUTPUTS:
DB-25 connector
with eight active-balanced transformerless
outputs.
11. XLR MIC INPUTS
: balanced, transformer
isolated.
12. XLR MAIN ANALOG OUTPUTS
: servo-
balanced, transformerless.
All five signal outputs can be used simultaneously.
2.2 REAR PANEL
