RCA Stereo L & R Post
Accessory Patch Points
(POST IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of —
10dB. Input jack impedance is
10k ohms, and output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path. The regular sig-
nal path is interrupted when a
plug is inserted into the Acces-
sory In jack.
RCA Group Pre Accessory
Patch Points (PRE IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of
-10dB. Input jack impedance is
10k ohms, and output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path. The regular sig-
nal path is interrupted when a
plug is inserted into the Acces-
sory in jack.
RCA Group Post Accessory
Patch Points (POST IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of
— 10dB. Input jack impedance is
10k ohms, and output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path. The regular sig-
nal path is interrupted when a
plug is inserted into the Acces-
sory in jack.
AC Power Cord
The power cord is of the three-
wire type with proper grounding
facilities built-in. (6ft.)
Earth Terminal
This terminal can be used to
ground other devices to the D-5.5
to reduce hum and shock hazard.
Aux 2 Send Jack (AUX 2 SEND)
This 1/4" phone jack can be used
either as a monitor send, or in
conjunction with the Aux 2 Re-
turn jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Aux 2
Send jack should be connected to
the input of the effect. Nominal
output level is +4dB with an
impedance of 1k ohms.
Pushbutton Circuit Breaker (1A)
(PUSH RESET)
This breaker is designed to pro-
tect the D-5.5 in the event of
internal or external fault. Wait
about two minutes after correct-
ing the fault and push the button
to reset the system and restore
proper operation.
L & R Cue Buss Output
(CUE
OUT
L/R)
These 1/4" phone jacks provide
the same signal as the headphone
output, and are used for monitor-
ing the signals of the cue buss or
stereo L and R busses through
monitor speakers.
This jack has a nominal output
level of +4dB and an impedance
of 1k ohms.
Aux 1 Send Jack (AUX 1 SEND)
This 1/4" phone jack can be used
either as a monitor send, or in
conjunction with the Aux 1 Re-
turn jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Aux 1
Send jack should be connected to
the input of the effect. Nominal
output level is +4dB with an
impedance of 1k ohms.
Sum Output jacks
(SUM OUTPUT)
The unbalanced RCA pin jack,
1/4" phone jack and electronical-
ly balanced XLR connector are
wired in parallel. The RCA jack
has a nominal output level of
-l0dB and an impedance of 1k
ohms, and the 1/4" phone jack
has a nominal output level of
+4dB and an impedance of 1k
ohms. The XLR connector has a
nominal output level of +4dB
and an impedance of 1k ohms.
All jacks may be used simul-
taneously.
Ground Lift Switch (GND)
These switch are assigned to the
XLR Sum Output and Stereo L &
R connectors, and are used to
avoid ground loops and induced
hum that sometimes occur when
connecting the D-5.5's XLR Sum
Output or Stereo L & R Output
with other equipment. Sliding
the Ground Lift Switch from the
NORMAL position to the LIFT
position breaks the ground con-
nection and may reduce hum and
noise. For most applications the
witch should be left in the NOR-
MAL position.
Effect Return Jack (EFF RET)
This 1/4" phone jack is used in
conjunction with the Effect Send
jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Effect
Return jack should be connected
to the output of the effect.
Nominal input level is — 20dB
with an impedance of 10k ohms.
Reverb Return Jack (REV RET)
This 1/4" phone jack is used in
conjunction with the Reverb
send jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Effect
Return jack should be connected
to the output of the effect device.
Nominal input level is -20dB
with an impedance of 10k ohms.
When a plug is inserted into this
jack, the built-in reverb circuitry
is automatically cut off.
CAUTION - The ground pin on
the AC plug should not be re-
moved under any circumstances.
If the D-5.5 must be used on an
AC circuit with no ground or and
open ground, then a suitable
grounding adapter should be
used and its ground terminal
should be securely attached to a
good earth connection. Failure to
do so will result in increased
noise and shock hazard.
Aux 1 Return Jack (AUX 1 RET)
This 1/4" phone jack can be used
in conjunction with the Aux 1
Send jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Aux 1
Return jack should be connected
to the output of the effect.
Nominal input level is — 20dB
with an impedance of 10k ohms.
Aux 2 Return Jack (AUX 2 RET)
This 1/4" phone jack can be used
in conjunction with the Aux 2
Send jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Aux 2
Return jack should be connected
to the output of the effect.
Nominal input level is -20dB
with an impedance of 10k ohms.
Effect Send Jack (EFF SEND)
This 1/4" phone jack is used in
conjunction with the Effect Re-
turn jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Effect
Send jack should be connected to
the input of the effect. Nominal
output level is +4dB with an
impedance of Ik ohms.
Reverb Send Jack (REV SEND)
This 1/4" phone jack is used in
conjunction with the Reverb Re-
turn jack to connect an outboard
effects device (ie., delay or re-
verb) to the D-5.5. The Reverb
Send jack should be connected to
the input of the effect. Nominal
output level is +4dB with an
impedance of 1k ohms.
Rear Panel (D-5.5)
RCA Sum Post Accessory
Patch Points
(POST IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of
— l0dB. Input jack impedance is
10k ohms, and output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path, the regular signal
path is interrupted when a plug
is inserted into the Accessory in
jack.
RCA Sum Pre Accessory
Patch Point
(PRE IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of
— l0dB. Input jack impedance is
10k ohms, and output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path. The regular sig-
nal path is interrupted when a
plug is inserted into the Acces-
sory in jack.
Stereo L & R output jacks
(ST L & ST R OUTPUT)
The unbalanced RCA pin jacks,
1/4" phone jacks and electroni-
cally balanced XLR connectors
are wired in parallel. The RCA
jack has a nominal output level of
— l0dB and an impedance of 1k
ohms, and the 1/4" phone jack
has a nominal output level of
+4dB and an impedance of 1k
ohms. The XLR connectors have
a nominal output level of +4dB
and an impedance of 1k ohms.
All jacks may be used simul-
taneously.
RCA Stereo L & R Pre
Accessory Patch Points
(PRE IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of
— l0dB. Input jack impedance is
10k ohms, and output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path. The regular sig-
nal path is interrupted when a
plug is inserted into the Acces-
sory in jack.
Rear Panel (D-5.5)
Group Output jacks
(GROUP OUTPUT)
The unbalanced RCA pin jacks
and 1/4" phone jacks are wired in
parallel. The RCA jack has a
nominal output level of — 10dB
and an impedance of 1k ohms,
while the 1/4" jack has a nominal
output level of +4dB and an
impedance of 1k ohms. The jacks
may be used simultaneously.
RCA Tape Input (TAPE IN)
These RCA pin jacks are unba-
lanced, with a nominal level of
-20dB and impedance of 10k
ohms, and accept input sources
from -20dB to + 10dB. Proper
adjustment of both trim control
(TRIM) and input fader ensure
optimum signal-to-noise ratio
and minimum distortion.
Direct Output (DIRECT OUT)
The Direct Output on each chan-
nel utilizes an unbalanced RCA
pin jack with an impedance of 1k
ohms and a level of -10dB. The
Direct Output is post-EQ/post-
fader, and is useful for recording
and for sending individual in-
struments to a main PA mixer
through direct boxes.
RCA Post Accessory Patch
Points (POST IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of
-10dB. Input jack impedance is
10k ohms, ana! output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path. The regular sig-
nal path is interrupted when a
plug is inserted into the Acces-
sory In jack.
RCA Pre Accessory Patch
Points (PRE IN/OUT)
These RCA pin jacks are unba-
lanced, with a nominal level of
-10dB. Input jack impedance is
10k ohms, and output jack impe-
dance is 1k ohms. The Accessory
jacks allow signal processing and
effect devices to be inserted into
the signal path. The regular sig-
nal path is interrupted when a
plug is inserted into the Acces-
sory in jack.
1/4" phone Channel Input (IN-
PUT)
This jack is a standard 1/4" phone
jack, with a nominal level of
-40dB and an impedance of
100k ohms, and accepts input
sources from -40dB to +20dB.
Proper adjustment of the pad and
tirm control (PAD/TRIM) and in-
put fader ensure optimum signal-
to-noise ratio and minimum dis-
tortion. When a plug is inserted
into the 1/4" input jack, the cor-
responding XLR mic input or
phono input is automatically
switched out of the input circuit-
ry-
Phantom Power Switches
(PHANTOM1~8)
The phantom power switch on
each input channel permits the
user to supply 48V DC through
the input connectors to a conde-
nser microphone. If phantom
power is not required, the switch
must be in the "off" position.
Earth Terminal
These may be used to provide
ground connection for tape decks
or turntables.
MIDI Thru Connectors
(MIDI THRU)
The MIDI signal from the MIDI
Input connector (MIDI IN, A/B) is
split and sent unaltered to the
four MIDI Thru connectors on the
D-5.5, and to six more MIDI Thru
connectors on the D-5.5E, if used.
Each of the MIDI Thru jacks can
be connected to a different synth-
esizer's MIDI Input jack, allow-
ing one MIDI keyboard or se-
quencer to control up to four
other MIDI synths. (ten when
using the D-5.5E and sixteen
when using the two D-5.5E's.)
Balanced XLR Microphone In-
put
(MIC)
The XLR-type microphone input
connectors are electronically ba-
lanced with a nominal level of
—60dB and an input impedance
of 1k ohms, and will accept sig-
nals from -60dB to 0dB. Phan-
tom powering is provided for use
with condenser-type mic-
rophones (see PHANTOM), and
once again the proper adjustment
of Pad and Trim control (PAD/
RTIM) and Input Fader will in-
sure optimum signal-to-noise
ratio and minimum distortion.
The mic input is automatically
disconnected when either the
corresponding the 1/4" phone
jack is used.
MIDI Input DIN Connectors
(MIDI IN, A/B)
These connectors will accept the
MIDI output of any synthesizer,
sequencer, or other MIDI device.
Use of non-MIDI-standard DIN
cables, or of cables longer than
5m (16'5") may result in improp-
er operation and data loss.
RCA Phono (RIAA)
Inputs (PHONO)
These RCA pin jacks have a
nominal level of — 50dB and an
impedance of 50k ohms, and
accept input sources from -50dB
to +10dB. Proper adjustment of
the pad and trim control (PAD/
TRIM) and input fader ensure
optimum signal-to-noise ratio
and minimum distortion. When
using a turntable with magnetic
cartridge, place the phono EQ
IN/OUT switch on the front panel
to the "in" position.
Buss Link Connector (BUSS
LINK)
This connector is used to link the
D-5.5 with the D-5.5E. Expander.
A six-foot connecting cord is
included with the D-5.5E.
L & R Cue Input (CUE IN L/R)
These 1/4" phone jacks allow
access to the stereo cue buss.
This feature is especially conve-
nient during recording applica-
tions. These jacks have a nominal
input level of -10dB with an
impedance of 10k ohms.
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