Peavey CS 8OOX manual IEC Mains Power Connector, DDT’ Switch, Mode Switch, Female XLR inputs

A IEC MAINS POWER CONNECTOR (7)

The CS 800s is fitted with a universal IEC connector. Into this connector one should always insert a heavy duty #14 AWG 3 conductor line cord with a conventional AC plug with a ground pin. This line cord should be connected to an independent mains circuit capable of supporting at least 15 amps continuously or greater. This is particularly critical for sustained high power applications. If the socket used does not have a ground pin, a suitable ground lift adapter should be used and the third wire grounded properly. Never break off the ground pin on the 3 conductor line cord. The use of extension cords should be avoided, but if necessary, always use a three-wire type with at least a #14 AWG wire size. The use of lighter wire will severely limit the power capability of this amplifier. Always use a qualified electrician to install any necessary electrical equipment. To prevent the risk of shock or fire hazard, always be sure that the amplifier is properly grounded.

DDT’” SWITCH (8)

This switch is used to either ENABLE or DEFEAT the DDT’” compressor.

MODE SWITCH (9)

The female XLR inputs (11)

are connected to dual OP AMP circuitry which offers very low noise and extremely high common mode rejection ratio to minimize outside interference!

Between the two XLR connectors is a recessed switch (13) which allows the user to select the desired polarity (phase) of the XLR inputs. This switch is a push-push type and a small diameter “tool” is required to select the desired position. Set to the out (default) position, the polarity is pin #3 positive, pin #2 negative, and pin #I ground. This is the polarity found on most Peavey power amplifiers. Although this is not the world “standard” (IEC) polarity, it was chosen by Peavey more than 20 years ago, and thus we offer this polarity to be consistent with products both past and present. If this amplifier is used with other competitive products which use the IEC standard polarity, then the ‘(in” position of switch (13) should be selected yielding pin #2 positive, pin #3 negative, and pin #I ground. As with any electronic gear, polarity (phasing) is important because the loudspeaker enclosures associated with this power amplifier must be in phase with any other loudspeaker enclosures associated with other power amps. If one loudspeaker system were to “push” while the other “pulls”, then a serious sound “cancellation” could result. Changing the setting of the polarity switch has the same effect as reversing the polarity of the loudspeaker connections at the output.

The female l/4” phone jack input (12) in the center of the “combo” connectors are also connected to a unique “quasi- balanced” input circuitry. When used, these 114” jacks are not “chassis grounded” but connected to ground through a relatively low impedance circuit which is part of a “ground loop” elimination circuitry associated with the input. This feature will normally allow “hum free” operation when relatively short i/4” cable patches are made to this input from various outputs on this amp and other equipment that share the same rack with this amp. This “quasi-balanced” circuit is “automatic”, and is virtually invisible in normal usage. It can not be defeated.

Each channel also has a female phone jack (14) labeled “thru”. This jack offers a very flexible patching capability. When the XLR input connectors (11) are used, then this “thru” jack is the output of the electronic balanced input circuitry, and as such can be used as a “line out” to connect to the other input jack on this amplifier or other amps in the same rack. Thus one balanced mixer feed can be connected to the amp via the XLR connector and then further distributed locally via the “thru” jack. Alternatively, when the i/4” phone jack input (12) is used as the input, then the “thru” jack becomes a “bridged” input to it (similar to a Y-cord), again allowing this input signal to be patched to the other input jack on this amplifier or other amps in the system.

Additional input modules are available from your authorized Peavey Dealer. Details of these modules and the installation instructions can be secured from this source.