Audio Authority 1715 Manuale utente

User Manual

Model 1715

Headphone Demonstration Amplier

Introduction

The 1715 is designed to provide high delity amplication and theft detection for

headphones in self service retail demonstrations. Only one of the four outputs may

be active at any one time. Larger switching systems, linked by Expansion Bus

and audio patch cords, can allow one live position on each 1715 or be combined

for a large system (see Expansion Bus). For best results use a commercial grade

lossless audio player such as our Model 1703.

MODEL 1715

GAIN 1 2 3 4

AUDIO

BUS

CUSTOMER

INPUT

BUS

TIMEOUT

12V DC

POWER

CONTROL

PORT

STATUS

PRODUCT SELECT BUTTONS

701-1468

FEATURES THEFT

1 2 3 4

HEADPHONE OUTPUTS

SIREN LEDEXPAND SWITCH

1/2

AUDIO

INPUT

1 2 3 4

Model 1715 Headphone Demonstration Amplifier

800-322-8346 ● 859-233-4599 ● audioauthority.com

THEFT

2/2

2/22/2

POWER INPUT

STATUS LED

POWER OUTPUT

CUSTOMER INPUT

DEMO TIMEOUT

GAIN

HEADPHONE

POSITION 1

HEADPHONE

POSITION 2

HEADPHONE

POSITION 3

HEADPHONE

POSITION 4

AUDIO BUS OUT

SIREN OUT

1 2 3 4

THEFT DETECT

(See page 4)

FEATURE SWITCHES

(See Expansion Bus)

DEFAULT INPUT

PRODUCT SELECT

BUTTONS

THEFT INDICATOR

OFF ON

EXPANSION BUS

RESET SWITCH

Package Contents

Before installing this product, please check the packaging and make certain the

following items are contained in the shipping carton:

• 1715 Headphone Demonstrator

• DC Power Adapter

• User Manual

1795 CONTROL

KNOB

2-WIRE BUTTONS

4-WIRE BUTTONS

Features

• Powerful 400 mW (into 32 ohms) headphone amplication

• Adjustable demonstration timeout

• Automatic selection of customer audio source when connected

• Theft detection and integral alarm

• Multiple units (up to four) can be connected

Audio Sources and Customer Auto Demo

Connect a 1703 music player to the Audio Input jack as the default source. If desired,

provide a 3.5mm cord connected to the Customer Input so that customers may

use their own music players to demonstrate headphones. When audio is detected

on the Customer Input jack, the customer device is automatically selected as the

audio source. If no audio is detected on the Customer Input for 3 seconds, the 1715

switches back to the Default Input.

Audio Bus Out

The bus output feeds the currently selected audio input to more 1715 modules or

other audio devices in the system. Connect a 3.5mm patch cord from the rst 1715

bus output to the second 1715 default Audio Input, etc. One linked system sharing a

Default Input also must share one Customer Input (do not use any Customer inputs

besides the rst 1715).

Expansion Bus

Expansion Bus is a four-conductor cable that allows multiple 1715 modules to be

connected and communicate with each other. They can coordinate current product

selection as well as alarm signals and alarm reset (see Theft Detection on page 4).

The expanded system may allow one output per 1715 module to play (Module Mode),

or one output for the entire system (System Mode). Turn on Feature Switch 1 of each

1715 to activate System Mode.

Product Select Button (PSB) Ports

Push-buttons (4-wire or 2-wire) may be used to select tracks.

They are available in several styles and colors; pictured right is a

stainless steel button illuminated with blue LED ring.

Control Port

To control volume on all four outputs, connect a 1795 Visual

Volume™ Control knob (sold separately). This control option

gives visual feedback with its glow ring, its brightness indicating

volume changes; a slow pulse highlights the knob during attract

mode. Push to mute the track, and rotate knob to adjust volume.

Timeout Interval

The demo timer is initiated each time a customer selects a product

output to audition. The demonstration length is set by the

timeout switch, in 15 second increments. If the switch is set to 0,

then the automatic demonstration timeout feature is disabled.

1795 Rotary Control with

black knob.

PSB-224 push-button. Various

cable lengths are available.

2048 Mercer Road, Lexington, KY 40511-1071 USA

800-322-8346 • 859-233-4599 • Fax: 859-233-4510

support@audioauthority.com • www.audioauthority.com

752-693 Rev. 20150519

Power

Connect included 12V power supply to Power Input. Connect jumper to other

1715 units if desired, up to four units total.

How to Set the Gain Control

• Raise the volume controls (on the player and/or 1715) to maximum.

• Choose at least one pair of headphones that has similar impedance and

sensitivity to the range of headphones you wish to demonstrate, and

connect them to 1715 outputs.

• Turn the 1715 Gain dial to 1 and start the music player.

• Select a headphone position, and raise the 1715 Gain dial to the point of

distortion, then adjust it down to the desired maximum level.

Theft Detection

1715 theft detection (off by default) is compatible with most headphone models,

including models with active circuitry such as noise cancelling. Activate theft

detection using the Theft Detect switches, which are numbered to correspond

with each headphone position. Keep cable lengths as short as possible. All

devices should be tested for proper detection behavior upon installation. If

detection does not work for a particular device, disable detection for that port.

Attach a reset switch (contact closure) to reset the alarm. The theft indicator

LED(s) turn off when the reset switch is on. Only one reset switch is needed per

system; reset status is communicated to all other modules that are connected

via the Expansion Bus cable. We recommend that a remote theft indicator light

should be installed in clear view of customers. The blinking LED is a deterrent,

warning that theft detection is active. The 1715’s on-board buzzer sounds if it

detects an unauthorized removal, but if a louder alarm is desired, the external

siren port can power a 12VDC siren. When headphones must be connected and

disconnected, turn on the siren reset switch, make product changes, and turn the

switch off again.

When active, the theft indicator blinks and the 1715 detects the headphones that

are connected, so that it will trigger the alarm if one is removed.

Operation

On power up, the status light blinks to show normal operation, and the selected

product button is lit. When the Customer Input is being used, the Status light

blinks rapidly. If used, the 1795 pulses in attract mode and indicates volume

levels during a demo.

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