Dynacord Xa 4000 owner manual Power Amplifier Output Connectors, GROUND-LIFT Switch, Mains Input

REAR PANEL

POWER AMPLIFIER OUTPUT CONNECTORS

Power amp output connection for SYSTEM, SUB and TOP channels is provided via professional SPEAKON- type output connectors. This mechanically and electrically safe connection method complies with any safety standard allowing the use of high-performance loudspeaker cables with diameters of up to 4 x 2.5mm2. The DYNACORD accessory program offers single connectors and couplings as well as high-performance loudspeaker cables.

The four poles of the system connector are assigned as follows: the low-frequency signal is present via pins 1+ and 1- while pins 2+ and 2- carry the Mid/ Hi-range audio signal. Using four-pole SPEAKON speaker cables allows quick, trouble-free and correct connection of loudspeaker cabinets that provide system connectors – like FX 12 and FX 20.

A plastic lid covers SUB and TOP connectors to prevent inadvertent erroneous connection. Remove these covers only in the event that you are going to connect speaker systems that do not provide system connectors. Keep in mind that the bass and mid/hi audio signals are present on the SUB and TOP connectors’ pins 1+ and 1-.

Caution:

The FLASH symbol “ ” at the loudspeaker connectors indicates that high voltages are present at these connectors which, when getting in contact, can cause harm to someone’s health.

GROUND-LIFT SWITCH

	The ground-lift switch allows eliminating noise loops. When operating
	the power amplifier in a 19” rack-shelf system or cabinet together
	with other equipment, setting the switch to its GROUNDED position is
	recommended. When operating the power amplifier together with
	appliances with differing ground potentials, set the switch to its
MAINS INPUT	UNGROUNDED position.
	Under normal circumstances, the mains fuse only blows in case of
	fault. Replacing the fuse is only permissible for authorized service
	personnel using a new fuse of the same type with identical amperage,
	voltage and blow characteristics. The high-performance mains cord
	supplied with your power amplifier complies with applicable
	safety regulations, plus that its diameter corresponds to the power
	amp’s power output capacity. Whenever possible make sure to use the
	supplied mains cord for connecting the power amp to the mains
	network. Using a different mains cord with a smaller diameter results
	in higher leakage, consequently reducing the amplifier’s maximum
	power output capacity.

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