Peavey CAB 80 User Manual
AUDIO SPECIFICATIONS
Audio Channels:
CAB 8i: Eight input channels, line-level
or microphone level with switchable
48-volt phantom power.
CAB 8o: Eight output channels, line-
level with individual channel jumpers for
a maximum output of +6, +12, +18, or
+24 dBu (factory default is +12 dBu for
unity I/O gain).
Note: See Digital specifications, Audio
Channels per CAB 8i/8o for number of
channels limitations.
or microphone level with switchable
48-volt phantom power.
CAB 8o: Eight output channels, line-
level with individual channel jumpers for
a maximum output of +6, +12, +18, or
+24 dBu (factory default is +12 dBu for
unity I/O gain).
Note: See Digital specifications, Audio
Channels per CAB 8i/8o for number of
channels limitations.
Frequency Response:
20 Hz Ð 20 kHz, +0/-0.5 dB, with a
+4 dBu input signal, unity gain in and out.*
+4 dBu input signal, unity gain in and out.*
Total Harmonic Distortion:
0.01% @ 1 kHz, 0.02% @ 20 kHz, with
a +4 dBu input signal, unity gain in and
out*
Note: Measurements made using a 10
Hz to 30 kHz input filter on Audio
Precision System One for testing.
a +4 dBu input signal, unity gain in and
out*
Note: Measurements made using a 10
Hz to 30 kHz input filter on Audio
Precision System One for testing.
Dynamic Range:
Mic Level:
Ð123 dBu equivalent input noise with a
150 Ohm, Ð48 dBu input signal, no input
pad, analog input gain at 60 dB, digital
gain at 0 dB, analog output set for
+12 dBu maximum (factory pre-set
jumper for unity gain through-put)
Note: This is equivalent to 78 dBA,
75 dB unweighted.
Line level:
95 dBA, 93 dB unweighted, with a
+12 dBu input signal, unity gain in and out*
Ð123 dBu equivalent input noise with a
150 Ohm, Ð48 dBu input signal, no input
pad, analog input gain at 60 dB, digital
gain at 0 dB, analog output set for
+12 dBu maximum (factory pre-set
jumper for unity gain through-put)
Note: This is equivalent to 78 dBA,
75 dB unweighted.
Line level:
95 dBA, 93 dB unweighted, with a
+12 dBu input signal, unity gain in and out*
Input CMRR (CAB 8i):
Better Than 65 dB at Any Gain
Setting:
73 dB with +12 dBu input and unity gain
in and out*, 69 dB with a +4 dBu input
signal and unity gain in and out*, 68 dB
with a Ð56 dBu input signal, no input
pad, analog input gain at 60 dB, digital
gain at 0 dB, analog output set for
+12 dBu maximum (factory pre-set
jumper for unity gain through-put).
Setting:
73 dB with +12 dBu input and unity gain
in and out*, 69 dB with a +4 dBu input
signal and unity gain in and out*, 68 dB
with a Ð56 dBu input signal, no input
pad, analog input gain at 60 dB, digital
gain at 0 dB, analog output set for
+12 dBu maximum (factory pre-set
jumper for unity gain through-put).
Maximum Input Level (CAB 8i):
+29 dBu, with a 20 dB pad in and the
analog input gain at 0 dB, +38 dBu with
a 20 dB pad in and the analog input gain
at Ð9 dB.
Note: The analog input gain control is
not buffered with an electronically
balanced amplifier and maintains a
balanced input circuit with
1-dB-per-step precision and specified
CMRR.
analog input gain at 0 dB, +38 dBu with
a 20 dB pad in and the analog input gain
at Ð9 dB.
Note: The analog input gain control is
not buffered with an electronically
balanced amplifier and maintains a
balanced input circuit with
1-dB-per-step precision and specified
CMRR.
Maximum Output Level (CAB 8o):
+24 dBu @ 600 ohms
CAB 8i Gain:
Software controlled analog gain from
Ð9d B to +60 dB, adjustable in 1 dB
increments, with a software selectable
analog Mic/Line input switch. (Line level
selection inserts a 20 dB input pad.)
Ð9d B to +60 dB, adjustable in 1 dB
increments, with a software selectable
analog Mic/Line input switch. (Line level
selection inserts a 20 dB input pad.)
CAB 8o Gain:
Software controlled analog output gain
from Ð95.5 dB to +31.5 dB, adjustable
in 0.5 dB increments with internal analog
output jumpers for maximum output
levels of +6, +12, +18, or +24 dBu
Note: It is not recommended to use this
as a microphone level output as noise
will be a problem at extremely low
output levels.
from Ð95.5 dB to +31.5 dB, adjustable
in 0.5 dB increments with internal analog
output jumpers for maximum output
levels of +6, +12, +18, or +24 dBu
Note: It is not recommended to use this
as a microphone level output as noise
will be a problem at extremely low
output levels.
Input Impedance (CAB 8i):
22.2 k ohms for Line input selection and
2.2 k ohms for Mic input selection
2.2 k ohms for Mic input selection
Output Impedance (CAB 8o):
100 Ohms, designed to drive a minimum
load of 600 Ohms
load of 600 Ohms
Analog LED Metering:
Eight peak-reading headroom meters,
calibrated in dBu, monitor the analog
level present at the input to the A/D
converters for the CAB 8i, and at the
output of the D/A converters for the CAB
8o, with the top-most red LED indicating
A/D or D/A clipping.
Note: The top-most red LED should
never illuminate during normal operation.
calibrated in dBu, monitor the analog
level present at the input to the A/D
converters for the CAB 8i, and at the
output of the D/A converters for the CAB
8o, with the top-most red LED indicating
A/D or D/A clipping.
Note: The top-most red LED should
never illuminate during normal operation.
Note 1: Audio specifications are measured
from the input into the CAB 8i and the
output out of the CAB 8o where relevant.
from the input into the CAB 8i and the
output out of the CAB 8o where relevant.
Note 2: All specifications are typical.
*Indicates no input pad, analog input gain
at 0 dB, digital gain at 0 dB, analog output
set for +12 dBu maximum (factory pre-set
jumper for unity gain through-put).
at 0 dB, digital gain at 0 dB, analog output
set for +12 dBu maximum (factory pre-set
jumper for unity gain through-put).
DIGITAL SPECIFICATIONS
A/D and D/A quantization:
24-bit resolution
Audio Transmission Quantization
via CobraNet
via CobraNet
ª
:
Software switchable, 24 or 20-bit resolution
Digital Processing:
24-bit DSPÕs, 56-bit accumulators
Audio Sampling Rate and Clock
Speeds:
Speeds:
48 kHz audio sampling, 80 MHz DSPÕs,
12.288 MHz master clock
12.288 MHz master clock
Audio Channels Per CAB 8i/8o:
¥ Eight with 20-bit transmission quanti-
zation selected
¥ Seven with 24-bit transmission quanti-
zation selected
CONTROL SPECIFICATIONS
CobraNet
ª
I/O:
100BaseT Ethernet via a standard
eight-conductor RJ-45 jack
eight-conductor RJ-45 jack
RS-485:
One port with two 3-cond. half duplex,
multi-drop connections
multi-drop connections
Control Ports:
Control voltage in:
0 VDC to +10 VDC, external-
potentiometer or external-voltage-source
controlled (internal 10 VDC supply
provided)
Software controlled TTL (Transistor-
to-Transistor Logic) out:
0 VDC or +5 VDC, with a maximum
current of 28 mA distributed to 8 outputs
0 VDC to +10 VDC, external-
potentiometer or external-voltage-source
controlled (internal 10 VDC supply
provided)
Software controlled TTL (Transistor-
to-Transistor Logic) out:
0 VDC or +5 VDC, with a maximum
current of 28 mA distributed to 8 outputs
Eight Software Controlled Relays
With Both NO and NC Contact:
With Both NO and NC Contact:
Maximum contact voltage:
120 VAC or DC
Maximum contact current:
2 A
120 VAC or DC
Maximum contact current:
2 A
Word-Clock Ports:
Two BNC I/O ports
Note: Can be used for redundancy
back-up that automaticaly switches from
one CAB 8 to another if the first should
fail.
Note: Can be used for redundancy
back-up that automaticaly switches from
one CAB 8 to another if the first should
fail.
GENERAL SPECIFICATIONS
Dimensions:
CAB 8i CAB 8o:
1.730" H x 19" W x 11.698" D
(4.39 cm H x 48.26 cm W x 29.71 cm D)
1.730" H x 19" W x 11.698" D
(4.39 cm H x 48.26 cm W x 29.71 cm D)
Net Weight:
CAB 8i: 8.5 lbs. (3.86 kg)
CAB 8o: 8.4 lbs. (3.81 kg)
CAB 8o: 8.4 lbs. (3.81 kg)
AC Power:
Universal Power Supply:
1.4 A maximum, 100 to 240 VAC, 47
to 63 Hz
1.4 A maximum, 100 to 240 VAC, 47
to 63 Hz
Power Consumption and Heat
Generation:
CAB 8i: 25 W, 85 BTU/Hr
CAB 8o: 20 W, 68 BTU/Hr
CAB 8o: 20 W, 68 BTU/Hr
Maximum In-Rush Current:
CAB 8i and CAB 8o: less than 1.4 Amps
Finish:
Grey powder-coat painted steel
Accessories:
One detachable AC cord, four rubber
adhesive feet
adhesive feet
Product Agency Compliance
Listings:
Listings:
UL, CUL, CE and FCC part 15, A
2