Sound Performance Lab 9629 manual Connections, Rear panel

Switch off power of all units to be connected before you connect the Auto Dynamic De-Esser.

The Auto Dynamic De-Esser is fitted with both XLR-connectors and TRS stereo jacks for balanced operation, though the jacks may be used with unbalanced connections simply by plugging in mono jack-plugs. The level difference that normally occurs when a balanced input or output is used unbalanced is automatically compensated for.

Should the need arise to use the XLR connectors in an unbalanced system, pin 3 of the XLRs should be grounded. Inserting a mono jack also unbalances the XLRs.

Both output stages operate in parallel, so it is possible to connect two diffe- rent destination units simultaneously, for example to record to two different media at the same time or split the output between a mixer and effects processor. However, only one type of input (jack or XLR) should be connected at a time – the Auto Dynamic De-Esser is not intended to be used as a mixer!

To ensure optimal signal quality, SPL has developed a new hybrid-compo- nent balanced input/output stage using all laser-trimmed resistors with a tolerance of 0.01%. This approach has resulted in an exceptionally high CCMR (common mode rejection): 100dB at 1kHz and 80dB at 10kHz. As a precaution, before connecting the Auto Dynamic De-Esser switch off power of the unit and of all units to be connected.

Rear panel

Balanced XLR and TRS stereo jack I/Os (+6 dB)

Voltage selector: 230 V/50 Hz or 115 V/60 Hz

GND Lift switch, CSA/UL approved 3-pole power plug

Connections

Pin wiring: Stereo Jack Connector	= hot (+), Ring = cold (-), Sleeve = GND
	Tip

	output	3 = cold (-)
	Pin wiring: XLR	GND, 2 = hot (+),
		1 =
2
		3
1
	input	3 = cold (-)
	wiring: XLR	2 = hot (+),
	Pin	GND,
		1 =
1
		3
2

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