On the Rear Panel:
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
AVIS:
RISQUE DE CHOC
ELECTRIQUE. NE PAS OUVRIR.
POWER
AC LINE IN
HEADPHONES/
LINE OUT
MASTER
LINE OUTPUT
PIEZO
ACTIVE
0
10
LOW Z
HIGH Z
LEVEL
CHANNEL OUTPUT
EFFECTS LOOP
RETURN
SEND
REVERB/
CHORUS
FOOT
SWITCH
STEREO INPUT
CA-1P
2018A
MADE IN THE U.S.A. BY SLM ELECTRONICS
1400 FERGUSON AVE., ST. LOUIS, MO 63133
TIP = ONE, RING = TWO
TIP = TWO, RING =ONE
CHANNEL ASSIGNMENT
CHANNEL TWO
CHANNEL ONE
36
35
34
33
32
31
30
29
28
27
26
39
38
37
CA-1P/1PD Block Diagram:
channel 1
stereo
input
input
active
piezo
freq cut
filter
gain
low mid high
peak
shape
depth rate
chorus
rev/
effect
send
active
piezo
channel 2
low-z
input
hi-z
input
phantom
power
tones
effects
line out
left right
rev/
effect
send
low high
tones
gain
effects
return
left
master
level
right
reverb
return
reverb mode
effects
send
DSP
low-z
bal.
hi-z
bal.
headphones/
line out
level
line out
ch. 1
out
footswitch
chorus
on
on
chorus on
ch. assign
ch. 2
out
CA-1PD
only
26: Power Switch.
Turns the preamp on and off – lights up when the pre-
amp is on.
27: Line In.
Connect the female end of the AC line cord here. Connect the
male plug to a suitable source of line voltage. Refer to the voltage
information on the back of the preamp for its voltage and current
requirements.
Note:
This is a grounded plug.
To avoid the possibility of electric
shock, DO NOT defeat the ground connection in any way!
28: Headphones/Line Out Master.
Use this jack to connect a pair of stereo
headphones or to send an high impedance, unbalanced line level
stereo signal to a house sound board, a recording console or an exter-
nal power amplifier by means of an 1/4” stereo plug-terminated cable.
The level at this jack is controlled by the Master Level knob (#25, front
panel).
29: Low Z Bal.
Use this jack to connect a low impedance, balanced line
level mono signal to a house sound board, a recording console or an
external power amplifier by means of an XLR-terminated cable. (Pin 1
is ground, pin 2 is , and pin 3 is signal -.) The level at this jack
is controlled by the Line Out Level knob (#31).
30: High Z Bal.
Use this jack to connect a high impedance, balanced line
level mono signal to a house sound board, a recording console or an
external power amplifier by means of an 1/4” stereo plug-terminated
cable. (Ring is , tip is signal -, and sleeve is ground.) The level
at this jack is controlled by the Line Out Level knob (#31).
31: Line Out Level.
Adjust the level of the line out signal with this control
- the further you turn to the right the stronger the signal. (This control
works independently from the master level control.)
32: Channel Two output.
Use this jack to connect an unbalanced, line level
mono “direct out” signal from Channel Two to a house sound board, a
recording console or an external power amplifier by means of an 1/4”
mono plug-terminated cable. This signal is post-EQ and pre-Master
Level.
33: Channel One output.
Use this jack to connect an unbalanced, line level
mono “direct out” signal from Channel One to a house sound board, a
recording console or an external power amplifier by means of an 1/4”
mono plug-terminated cable. This signal is post-EQ and pre-Master
Level.
34: Effects Loop Return.
Patch into an external effects device using this
jack and the Effects Loop Send jack (#35). Connect a shielded cable
from the output jack of the external effects unit to this jack.
35: Effects Loop Send.
Connect a shielded cable from this jack into the
input jack of the effects unit.
36: Footswitch - CA-1P:
Connect a one-button footswitch (such as the
Crate CFP-1) here for remote on/off control of the chorus. When con-
nected, the footswitch overrides the front panel chorus on/off switch.
The footswitch tip controls the chorus; sleeve is ground.
CA-1PD:
Connect a two-button footswitch (such as the Crate CFP-2)
here for remote on/off control of the DSP section and chorus. When
connected, the footswitch overrides the front panel chorus on/off
switch. The footswitch tip controls the chorus, ring controls the DSP;
sleeve is ground.
37: Channel Assignment switch.
This switch assigns the tip and ring con-
nection of the Stereo Input jack (#39) as follows:
Switch OUT: Tip = Channel One, Ring = Channel Two
Switch IN: Tip = Channel Two, Ring = Channel One
38: Active/Piezo switch.
Set this switch to match the type of pickup device
on your instrument: for active electronic pickups, set the switch to
“active” (out). For passive/magnetic pickups, set it to “piezo” (in).
39: Stereo Input jack.
For instruments with stereo outputs (such as
acoustic guitars with pickups in the bridge and a built-in microphone),
connect a stereo 1/4” cable here to send one signal (for example, the
bridge pickups) to Channel One and the other to Channel Two. The
Channel Assignment switch (#37) determines which channel receives
which signal.
