Thank you for your purchase of the DB14 AV PRESENTER. The DB14 is a special purpose direct box for applications such as connecting a laptop computer to a sound system. Or where needed, a stereo source signal can be separated, and individual volume controls used for each track such as a rehearsing choir to a music track. It has stereo RCA inputs, a stereo 1/8” (3.5mm), 2 volume controls, RCA and XLR outputs, and uses no power.

DESCRIPTION

Right/Left In: RCA and 1/8” input jacks. For connection to a laptop computer, CD player, DVD player, etc.

R/L Out: RCA jacks for sending the input signals out to a line level amplification device.

Low Z Out: Male XLR jack for sending out a mix of both A and B signals.

Right/Left Volume: Controls the level of each input signal independently.

GND-LIFT: Ground/Lift switch for disconnecting the ground of the XLR jack from the ground of the DB14b.

SPECIFICATIONS

 

Max Input Level:

+20 dB

Max Output Level:

+20dB RCA, 0 dB XLR

Frequency Response:

(Low Z) 50 Hz to 16

kHz

 

Weight:

1 lb (.45 kg)

Size:

2” x 3.5” x 1.25”

 

(5 x 9 x 3.2 cm)

 

 

 

Owners Manual

CONNECTION

Shown below is a connection example for the DB14b. The laptop computers stereo output is connected to the 3.5mm stereo input of the DB14b via a stereo 3.5mm to 3.5mm cable.

NOTE: The Right and Left signal levels are adjusted individually by the Right and Left Volume controls.

The XLR output is connected to a balanced low impedance input on a snake or a mixer balanced input.

The two stereo RCA outputs may be connected to unbalanced high impedance stereo, or individual right and left mixer inputs.

To unbalanced input

To snake or mixer

WARRANTY

For information on the Rolls One Year Limited Warranty, and to register this product, visit our website at www.rolls.com

SCHEMATIC

J2B4

OUTPUT 6 RCAX4 PC

 

5

 

J2A

 

1

 

 

RCAX4 PC

3

 

INPUTS

2

 

J1

 

 

3.5STJK

 

 

P2

P100K

R1

XFMR AUDIO PC

 

10K

 

 

T1

 

 

2

 

R2

 

 

10K

 

 

 

3

SW1

 

J2

 

2

P1

XLR JACK M 1

3

P100K

1

 

SPST

 

 

Rolls Corporation

 

5968 So 350 West

 

 

Murray

Utah 84107

 

 

 

 

 

DB14b AV Presenter

 

 

 

 

 

 

Document Number:

 

Rev:

Ba

 

DB14.SCH

A

Date: 1 february 2010

Sheet 1

of 1

Rolls Corporation 02-10

 

 

 

 

 

 

The DB14 is a special purpose direct box for ap plications where a stereo source signal can be separated, and individual volume controls used for each track such as an AV presentation from a laptop computer, or a rehearsing choir to a music track. It has stereo RCA and 1/8” inputs, 2 volume controls, RCA and XLR outputs, and uses no power.

DB14 AV PRESENTER - Splits Stereo RCA and stereo 1/8” (3.5mm) signals - Individual Right and Left level controls - Transformer balanced XLR mono output.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Rolls DB14 owner manual Specifications, Schematic, Description, Connection, Warranty