Chevin Research A5000 - Input Connections and Mono Bridging; Input Wiring Methods; Mono Bridging Setup

2
3
Power (continued)
Three phase systems
• IMPORTANT: The neutral current will not balance on three-phase systems.
• Use individual neutral connections from each phase outlet back to the distribution point.
• Alternatively, ensure the neutral conductor is of sufcient capacity to handle a return
current equal to the sum total of the current in the three phases.
Inputs
• XLR connectors are used on all amplier inputs except for Line250 and Line500 models.
• Do not directly connect any channel to more than one signal source, these are not mixing
ampliers.
• All inputs are electronically balanced and can accept signals from balanced and unbalanced
sources. Maintain the same phase polarity on all equipment in the signal chain.
Inputs from balanced sources
Use shielded cable with XLR connectors at both ends (except Line250 and Line500):
• Ground/screen: Connect cable braid to XLR pin 1.
• HOT (+) signal: XLR pin 2
• COLD (–) signal: XLR pin 3
Inputs from unbalanced sources
Use shielded cable with an XLR connector at the amplier end (except Line250 and Line500)
and either a jack plug, phono plug or XLR connector, as appropriate:
• Ground/screen and COLD (–): At the source end, connect the COLD signal wire and cable
braid to the sleeve of jack plug or phono connector, or pin 1 of an XLR connector (if used).
• At the source end of the cable, connect the HOT (+) signal to the tip of the jack plug, the
pin of the phono plug or pin 2 of an XLR connector (if used).
• Connect the XLR at the amplier end as per ‘Inputs from balanced sources’ above.
Inputs to Line250 and Line500 models
The Line250 and Line500 models use block connectors at the rear panel. Use connections at
the source end as explained above for balanced or unbalanced sources. At the amplier end,
make wire connections rather than using an XLR connector.
Mono bridging
Various models can have their channels bridged together (except A700v, A5000, A6000,
QB1000/600, Line250 or Line500). For details about the necessary wiring, see page 6.
Speakon is a registered trademark of Neutrik AG
XLR is a registered trademark of ITT Cannon Ltd.