Peavey XR 400B User Manual

PATCH PANEL
The patch panel of the XR-4O0B has been designed to allow use of auxiliary accessories, mixers, power amps, etc., in conjunction with
thisunii.
FOOTSWITCH JACK (M)
The footswitch jack provides an inputto accommodate the optional remote reverbcutoff pedal. This footswitch jack is conventional and
should present no operational problems
AUXILIARY INPUT (N)
The auxiliary input provides access to the main mixing bus for patching in signals from externa devices such as delay lines or extra
mixing channels. Its input impedance is 22K ohms and is designed for signal levels of approximately 1 volt RMS.
EFFECTS OUTPUT (O)
The effects output has been designed to deliver output signal from the effects bus for driving various line level devices. Caution should
be observed when using accessory devices with the relatively high output signal level available from the effects output. Overall signal level
is determined by the setting of the various effects send controls of the respective channels. This output is of relatively low impedance and
is capable of approximately 4 volts into 600 ohms or 8 volts into higher load impedances.
MONITOR OUTPUT (P)
Tne monitor output provides a signal for an external monitor system and is of relatively low output impedance capable of over 4 volts
into 600 ohms or over 8 volts into higher load impedances. The level is controlled by settings of the individual channel monitor sends as
well as the master monitor level control.
MAIN OUTPUT (Q)
The main output provides output irom the main mixing bus. This output is of relatively ow mpedance and is capable of over 4 volts RMS
into 600 ohms or over 8 volts into higher load impedances. The output level is determined by the gain and equalization settings ot the
individual channels, as well as the master gain control.
GRAPHIC INPUT (R)
The graphic input jack provides a means to allow patching into the internal graphic equalizer/power amp. This jack is of the switching
type that normally picks up the signal from the main output jack (Q) When a plug is inserted into the graphic input, the circuit path is
broken and this input may now be plugged into other devices oranyol tho output jacks of the XR-400B. The graphic input provices much
greater flexibility in allowing the internal graphic/power amp to be utilized as a monitor amp or lor any other purpose the user may deem
necessary, its input impedance is approximately 50K ohms at approximately l volt signal level for full power output at the speaker jacks.
REAR PANEL
FUSE (S)
The tuse is located within the capot the fuseholder it is necessarythatthefuse be replaced with the proper type and value if it should fail
in order to avoid damage to the equipment and to prevent voiding the warranty. If your unit repeatedly blows fuses, it should be taken to a
qualified service center for repair.
POWER SWITCH <T)
Cn domestic units, the power switch is of the three position type with the center position beng ' OFF'' This switch has two "ON” posilions, one
of which s used to ground the amplifier properly One of :he "ON" positions will yelc the lowest amount ot residual hum or popping" when
the instrument is touched, and this is the position that should De used
On export mooelS; we utilize a simple on/off switch tha* does not have multiple "ON" positions since the grounding (earthing) conditions in most
foreign countries are positively made through standard tamper-proof plug-in systems.
LINE CORD (U)
For you f safely, we have incorporated a three-wire Ihe (mains) cable with proper grounding facilities. If is not advisable to remove the ground
oin under any crcumstances. if it is necessary' to use the amp in a two-pin plug system without proper grounding facilities, suitable grounding
adaptors should be used Much less noise and greatly reduced shock hazard exists when the unit is operated with the proper grounded receptacles.
SPEAKER OUTPUTS (V)
The sneaker output jacks a'e ot the standarc y< ” type. Both the output jacks are wired in parallel and either cr both may be used when connect¬
ing your speaker sysiem The POOH module has been optimized fora 4 ohm load bul has adequate performance to drive loads abeve the recom¬
mended 4 chm impedarce Extreme care should oe used when operating a unit at below 4 ohms since lower load impedances tend to overload
the power amplilier and may cause premature activation o( the power arnp's short crcuit protection system and/or thermal fault protection circuitry.
LINE (MAINS) CORD RETAINER (W)
We have provided two large molded line cord retainers on the fear panel to allow storage of the mams cabe for travel. In operation the cable
should be cornpletey unwrapped to allow maximum heat dissipation from the rear panel/heatsink.

Peavey XR 400B Specifications

General

Brand	Peavey
Model	XR 400B
Category	Amplifier
Language	English