Page 26
MICROPHONE PREAMPLIFIER
Page 27
Instruction Manual
5. USING THE DIGITAL MODULE
Variations
As you can see, clocking is usually pretty simple. Sometimes, especially with the use of
many channels and multiple 1788A’s, you may need to work out an optimal clocking
scheme depending upon what equipment is involved outside the 1788A’s. You might, for
example, need to fan out from a parallel clock D.A. to several racks of 1788A’s which are
locally series-looped. With long distance clock runs, you should use impedance matched
transmission to minimize jitter problems.
Refer
to Appendix F for information about word clock distribution methods and
cabling.
< < P
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
AUX
OUTPUT
CH 8
MIC IN
LINE OUT
CH 7
MIC IN
LINE OUT
CH 6
MIC IN
LINE OUT
CH 5
MIC IN
LINE OUT
CH 4
MIC IN
LINE OUT
CH 3
MIC IN
LINE OUT
CH 2
MIC IN
LINE OUT
CH 1
MIC IN
LINE OUT
AES/EBU OUTPUT
LAN
TDIF
ADAT
IN
OUT
UTIL
1 2 3 4
ON
< < P
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
AUX
OUTPUT
CH 8
MIC IN
LINE OUT
CH 7
MIC IN
LINE OUT
CH 6
MIC IN
LINE OUT
CH 5
MIC IN
LINE OUT
CH 4
MIC IN
LINE OUT
CH 3
MIC IN
LINE OUT
CH 2
MIC IN
LINE OUT
CH 1
MIC IN
LINE OUT
AES/EBU OUTPUT
LAN
TDIF
ADAT
IN
OUT
UTIL
1 2 3 4
ON
< < P
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
AUX
OUTPUT
CH 8
MIC IN
LINE OUT
CH 7
MIC IN
LINE OUT
CH 6
MIC IN
LINE OUT
CH 5
MIC IN
LINE OUT
CH 4
MIC IN
LINE OUT
CH 3
MIC IN
LINE OUT
CH 2
MIC IN
LINE OUT
CH 1
MIC IN
LINE OUT
AES/EBU OUTPUT
LAN
TDIF
ADAT
IN
OUT
UTIL
1 2 3 4
ON
< < P
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
AUX
OUTPUT
CH 8
MIC IN
LINE OUT
CH 7
MIC IN
LINE OUT
CH 6
MIC IN
LINE OUT
CH 5
MIC IN
LINE OUT
CH 4
MIC IN
LINE OUT
CH 3
MIC IN
LINE OUT
CH 2
MIC IN
LINE OUT
CH 1
MIC IN
LINE OUT
AES/EBU OUTPUT
LAN
TDIF
ADAT
IN
OUT
UTIL
1 2 3 4
ON
< < P
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
AUX
OUTPUT
CH 8
MIC IN
LINE OUT
CH 7
MIC IN
LINE OUT
CH 6
MIC IN
LINE OUT
CH 5
MIC IN
LINE OUT
CH 4
MIC IN
LINE OUT
CH 3
MIC IN
LINE OUT
CH 2
MIC IN
LINE OUT
CH 1
MIC IN
LINE OUT
AES/EBU OUTPUT
LAN
TDIF
ADAT
IN
OUT
UTIL
1 2 3 4
ON
To Additional 1788A’s
or Other Gear
From Clock Source
Clock D.A.
If Impedance Matched, Use Terminations
Parallel Remote Clocking
