Alesis RA500 User Manual - Page 15

RA150 Back Panel, RA300 Back Panel, RA500 Back Panel

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INPUTS INPUT JACK CHARACTERISTICS The RA150/300/500 include two balanced, 1/4" TRS (tip-ring-sleeve, 3-conductor) phone jack inputs, and unbalanced RCA/phono inputs. The RA300 and RA500 feature combination XLR input jacks as well. The inputs are wired according to IEC standards, as shown in the table below. Connection Audio Ground High (+) Low (-) RA150 Back Panel XLR Pin 1 Pin 2 Pin 3 Chapter 2: Connections These are compatible with the low-impedance, unbalanced or balanced, line-level outputs typically emanating from equipment such as mixers, synthesizers, samplers, direct boxes, crossovers, etc. Electric guitars, microphones, and other lowlevel/high-impedance output devices require a preamp. Phone Jack Sleeve Tip Ring RCA/phono jack Shell Pin -- RA300 Back Panel RA500 Back Panel RA150/300/500 Reference Manual 13

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Chapter 2:
Connections
RA150/300/500 Reference Manual
13
I
NPUTS
I
NPUT
J
ACK
C
HARACTERISTICS
The RA150/300/500 include two balanced, 1/4"
TRS (tip-ring-sleeve, 3-conductor) phone jack
inputs, and unbalanced RCA/phono inputs.
The
RA300 and RA500 feature combination XLR input
jacks as well. The inputs are wired according to IEC
standards, as shown in the table below.
These are compatible with the low-impedance,
unbalanced or balanced, line-level outputs typically
emanating from equipment such as mixers,
synthesizers, samplers, direct boxes, crossovers, etc.
Electric guitars, microphones, and other low-
level/high-impedance output devices require a
preamp.
Connection
XLR
Phone Jack
RCA/phono jack
Audio Ground
Pin 1
Sleeve
Shell
High (+)
Pin 2
Tip
Pin
Low (–)
Pin 3
Ring
--
RA150 Back Panel
RA300 Back Panel
RA500 Back Panel