YORKVILLE XS800H Owner'S Manual Download Page 8

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800

XLR Balanced Line Out Jack

Located at the rear, this jack is used to

connect directly to mixing consoles. Use

this when performing live or recording in

the studio. Selecting the

D.I. option in the

D.I. Output mode selection switch (locat-

ed on the front panel) provides a

pre

-EQ

and

pre

-EFX signal while the

Line option

sends the signal

post

-EQ and

post

-EFX.

Ground Lift switch, located beside

the XLR jack, lifts the

balanced

Line Out

ground (pin1) when pushed in.

Note: When the Mute switch is engaged,
a signal will not be sent to the mixing
console through the XLR output.

Ground Lift Switch

The

Ground Lift switch is located next to the

balanced

Line Out XLR on the rear panel. If hum is

detected, when connecting from the

balanced

Line Out XLR to a mixing console (or other audio

device), lift the ground (pin 1) by pressing the Ground Lift switch in.

Amp In ¼-inch Jack

The balanced

Amp In jack is located on the rear panel of the XS800H. The Amp In jack provides a

direct path to the

XS800H’s power amplifier, bypassing the preamp. The Master control still controls

the overall output level. Multiple

XS800H’s can be linked together by using the signal XS800H’s

bal-

anced

XLR Line Out to additional XS800H Line In jacks.

Effects Send ¼-inch Jack

External effects processors are provided with a balanced

post

-EQ signal from the

Effect Send jack.

Note:

This jack can also be used as additional line out for sending signals to another power amplifier.

The output of this jack is not muted when the Mute switch is enabled.

Effects return ¼-inch Jack

This balanced jack is used to return effects processed audio signal back into the

XS800H. The

Effects Return control, located on the front panel, regulates the blend of effected and un-affected sig-

nal. This input can also be used as an auxiliary input for mixing in a secondary source of audio such
as pre-recorded music.

Output Jacks

The ¼-inch and Speakon™ jacks are used to connect extension speaker cabinets. All speaker output

jacks are in connected in parallel, minimum load impedance is 2-ohms (e.g. two 4-ohm or four 8-ohm
cabinets).

Cooling System

Two 3-inch fans cool the

XS800H. The fans are run at low speed, the speed increases depending on

how hard the amplifier is working. The air intake vents are located at the rear of the amplifier and on
the top (near the back). The exhaust vents are located at the sides.

Caution:

The rear vent must be kept clear in order for the air to enter into the amplifier. The side

vents are used to allow the warm air out of the unit. At least an inch clearance for each side should be
allotted. The rear of the unit should always remain unobstructed. Rack-mounting the XS800H will not
affect intake/exhaust airflow as long as the rear of the rack casing is open during operation.

Preamp Tube Replacement

Use only Yorkville Sound part number “12AX7SORTED” when replacing preamplifier tubes as they have

been specifically selected for this product.

Please refer to the Service Manual for more information.

Line Out

Send

EFX

Amp In

Footswitch

Circuit

Breaker

Press to Reset