dbx 263A Operation Manual - Page 5

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MODEL 263A

To install two units side-by-side

-6

-4

-3

-2

-1

2.5k

Hi-Z MIC

INPUT

1.8k

800Hz

8kHz

FREQUENCY

Figure 4: Rack Mounting Two 263A Units

You will need:

joiner assembly

(joiner, joiner side pieces)

reinforcing plate

rack ears

3/32Ó Allen wrench

Phillips screwdriver (not included)

pan head Phillips screws

flat head countersink screws

NOTE: The optional Accessory Kit includes the tools and hardware listed above, except as noted.

A. Remove the joiner assembly from the Accessory Kit. Note how the joiner side pieces are held

captive by the joiner before you separate them. This is important when it comes time to join

the units together. Now separate the joiner side pieces from the joiner by turning the thumb-

screw counterclockwise.

B. At this time you will need to designate a ÒLeftÓ and a ÒRightÓ unit.

C. With the left unit facing you, loosely attach a rack ear to the left side of the unit with two pan

head Phillips screws. On the right side of the unit, place a joiner side piece into the extruded

channel so the holes in the unit align with the holes in the joiner side piece - countersink side

up. Secure the joiner side piece with two countersink screws.

NOTE: If this is the first time the rack ear has been installed, you will be cutting threads

as you drive the screws. This is normal.

D. Repeat step C with the ÒRightÓ unit; swapping right for left with regard to the rack ear mounting

and left for right with regard to the joiner side piece mounting.

E. Place the Left and Right units on a flat surface, rear facing, so the joiner side pieces are

approximately 2Ó apart. Take the joiner assembly and loosen the thumbscrew so the sliding

catches clear the joiner side-piece cut-outs. Now place the joiner assembly against one of the

units with the side piece so it lays flush. (The joiner assembly should be positioned so the

thumbscrew is accessible from the rear of the unit.)

OPERATION MANUAL

HIGH

FREQUENCY

-20 -18 -16 -14 -12 -10

-8

GAIN REDUCT

BROADBAND

263A

DE-ESSE

OPERATION MANUAL

While holding the joiner assembly in position, slide the other unit over so it mates flush with

the joiner assembly and turn the screw clockwise until it is snug. Do not over-tighten. Both

units should now be secured together.

F. Make sure everything is aligned, and tighten the screws on each of the two rack ears.

NOTE: For installations where the two units will be subjected to physical stress (e.g.

portable operations), a small OPTIONAL reinforcement plate is included. See steps G

through I. If you donÕt wish to use the reinforcing plate, skip the following steps.

G. Turn the two units so that the back faces you. Remove the four rear cover screws nearest the

joiner knob.

H. Place the reinforcing plate over the joiner knob so that the four screw holes line up.

I. Replace the four screws, using the slightly longer screws provided in the Accessory Kit.

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