Pro Audio MPA204 - Page 20

MPA204
6
GB
©2007 Music & Lights s.r.l. - Italy - www.musiclightsitaly.com - FP- 05 /12/07 - Rev01
» WIRES AND CONNECTORS
WIRES AND CONNECTORS
Choose Input Wire and Connectors.
We recommends using pre-built or professionally
wired, balanced line (two-conductor plus shield), 22-24
gauge cables and connectors. Depending upon which
amplifier input you choose, you should use either 3-pin
male
XLR connectors, TRS phone connectors, or terminal forks
at the amplifier inputs. Unbalanced line may also be used
but may result in noise over long cable runs.
Note: Amplifier input connectors not used for audio signal
input may be used for daisy-chaining of the audio signal
to other components.
Balanced Input
Connector Wiring
Unbalanced Input
Connector Wiring
1
2
3
1
2
3
GND
INPUT
SOURCE
SHIELD
INPUT
SOURCE
Normal Operation Wiring Bridged operation wiring
Choose Output Wire and Connectors.
We recommends using pre-built or professionally wired,
highquality, two- or four-conductor, heavy gauge speaker
wire and connectors. You may use two 4-pole Speakon
connectors or banana plugs, spade lugs, To prevent the
possibility of short-circuits, wrap or otherwise insulate
exposed loudspeaker cable connectors.
Using the guidelines below, select the appropriate size of
wire based on the distance from amplifier to speaker.
DISTANCE WIRE SIZE Ø
up to 7 mt 16 AWG (1.290 mm)
from 8 to 12 mt 14 AWG (1.630 mm)
from 13 to 18 mt 12AWG (2.050 mm)
from 19 to 30 mt 10 AWG (2.590 mm)
from 31 to 46 mt 8 AWG (3.260 mm)
from 47 to 76 mt 6 AWG (4.110 mm)
OUTPUT ASSIGNMENT
OUTPUT 1 CH1+ (positive) CH1- (negative)
OUTPUT 2 CH2+ (positive) CH2- (negative)
BRIDGE 1 CH1+ (positive) CH2+ (negative)
OUTPUT 3 CH3+ (positive) CH3- (negative)
OUTPUT 4 CH4+ (positive) CH4- (negative)
BRIDGE 2 CH3+ (positive) CH4+ (negative)