Behringer Powerplay Pro HA4600 manual Audio Connections, Balanced use of stereo 1/4 jack plugs

POWERPLAY PRO HA4600

4. AUDIO CONNECTIONS

As a standard, the BEHRINGER POWERPLAY PRO is equipped with electronically servo-balanced inputs and outputs. The circuit design features automatic hum suppression for balanced signals and so ensures trouble-free operation, even at the highest operating levels. Externally induced mains hum, etc. can therefore be effectively suppressed. The automatic servo-function recognizes the presence of unbalanced connectors and adjusts the nominal level internally to avoid level differences between the input and output signals (6-dB correction).

+Please ensure that only qualified persons install and operate the POWERPLAY PRO. During installation and operation the user must have sufficient electrical contact to earth. Electrostatic charges might affect the operation of the unit.

Fig. 4.1: Connector for the headphones, AUX IN and DIRECT IN

Unbalanced use of mono 1/4" jack plugs

Tip =

Signal

Sleeve =

Ground / Shield

Tip

Sleeve

Strain relief clamp

Balanced use of stereo 1/4" jack plugs

Tip = hot (+ve)

Ring = cold (-ve)

Sleeve =

Ground / Shield

Tip

Ring

Sleeve

Strain relief clamp

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

	Balanced use with XLR connectors
2	1	1	= Ground / Shield	1	2
		2	= hot (+ve)
	3	3	= cold (-ve)		3
Input					Output
	For unbalanced use pin 1 and pin 3 have to be bridged
	Fig. 4.2: Different plug types
10	4. AUDIO CONNECTIONS