Atlas TSD-PA20VG Owner's Manual

Owner’s Manual

TSD-PA20VG

1x20W Global Commercial Amplifier

TSD-PA20VG

Mono 20W Power Amplifier

1601 Jack McKay Blvd. • Ennis, Texas 75119 U.S.A.

Telephone: 800.876.3333 • Fax: 800.765.3435

Specifications are subject to change without notice.

TSD-PA20VG



Description

The Atlas Sound TSD-PA20VG is a cost-effective mono amplifier for 4Ω and distributed constant voltage (25/70/100V) speaker systems. Applications such as house of worship cry rooms, hallways, restrooms, foyers, and classrooms will benefit from this compact reliable amplifier. The TSD-PA20V is also a cost-effective alternative for small projector systems as it can be used with as many as

(16) 25/70/100V ceiling speakers (tapped at 1W each), plus the extremely small footprint allows for easy mounting. For sound masking applications the TSD-PA20VG has the capacity to drive up to 34 masking speakers tapped at .5W each on a 70.7V line.

Output is gain controlled from a potentiometer on the front panel with removable knob to facilitate installation of a tamper-resistant cover (included).

The TSD-PA20VG is part of a full line of Atlas Sound Time Saving Devices. These compact

(1.5" x 4" x 5.2") units are designed to solve some of the common audio system problems in the easiest, most efficient, and cost-effective way. All models are made from high quality components and include removable individual I/O connectors for quick and precise wiring, separate ground terminals for all I/Os assuring secured connections, and removable level controls that can be replaced with tamper-resistant security covers. The TSDs are highly efficient and meet most energy standards as one 24V DC power supply (available separately) can power multiple Atlas Time Saving

Devices.

Features

• 20W Mono Amplifier

• 4Ω/25/70/100V Output

• One (1) Balanced Input

• Removable Level Control with

Set-It-And-Forget-It Security Cover

• Peak Indicator

• Input Signal Indicator

• Cable Management System

• Multiple Mounting Configurations

• Separate Ground Connections

• Removable Phoenix Style I/O Connectors

• Meets Most Energy Standards

• Compact Chassis Design

Audio Applications

• Projector Amplifier

• Zone Amplifier

• Paging Systems

Installation

• Courtrooms

• Public Forums

• Churches

• Restaurants

• Schools

• Industrial Facilities

• House of Worship

AtlasSound.com


Telephone: 800.876.3333 • Fax: 800.765.3435

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Front Panel Description

5

TSD-PA20VG


3

4

2

5 5

1

1. Input Level Control - Determines the output level at the loudspeakers on the PA20VG. Turn

clockwise to increase the signal level and counter-clockwise to decrease the level. Note: The

Input Level Control knob can be removed and replaced with a supplied security cover to prevent

unauthorized adjustment.

2. Power LED - Illuminates Blue when 24VDC power is present.

3. Signal LED - Illuminates Green when the input signal strength reaches 25mV to verify a signal

path.

4. Peak LED - Illuminates Red when the input signal reaches 3dBV below when signal clipping

will occur. Occasional flashing is normal but if this indicator is continuously On, then reduce the

input level using the Input Level Control on the front panel.

5. Bracket Retainer Points - Each TSD includes two mounting brackets for securing the TSD to a

cabinet or wall. Remove screws and align the bracket with the panel hole before firmly tightening

the screws.


Telephone: 800.876.3333 • Fax: 800.765.3435


TSD-PA20VG


Rear Panel Description

4


4

4 4

1 2 3

TSD Input/Output connections are removable for easy system wiring. The connectors have a 3.5mm pitch between pins.

1. DC Power Input - Each TSD that requires DC power comes with a 2 position connector for an

external 24VDC power supply (sold separately). Because of the TSDs low power consumption, a

single external power supply may power more than one TSD. Please refer to the specifications

on current requirements in milliamps to match with the appropriate power supply. Please observe

the polarity of the wiring to this connector. Note: It is acceptable to exceed the current

requirements of the TSDs but NOT safe to use a power supply that is below the current

requirement of the device.

2. Balanced Line Input - Connect balanced line level signals to this phoenix style connectors. Your

connection must be mated properly to the input connector or signal loss and/or noise may occur.

Note: Unbalanced line level inputs can also be used by connecting the (G) and (-) terminals

together.

3. Speaker Outputs - Connect the loudspeaker wiring to these terminals, observing the polarity

shown on the rear of the chassis. For low impedance loads, use the “COM” and 4Ω terminals.

For high impedance loads, use “COM” and the proper terminal for your system (25/70/100V). It is

recommended to keep the sum total of tapped loudspeakers to 20W.

4. Cable Management Retainer Points - Use the rear panel screws for connecting the included cable

retainers. Each TSD comes with two cable retainers for simplified cable management.



Telephone: 800.876.3333 • Fax: 800.765.3435

– 4 –



TSD-PA20VG


Knob and Security Cover

All front panel level controls feature a removable knob that can be replaced with included security covers to prevent potentiometer damage or unwanted changes.

• Knob Installation - Turn the potentiometer shaft fully counter-clockwise. Align the knob indicator

to the lowest setting on the panel and the potentiometer shaft slot. Carefully press the knob onto

the potentiometer shaft. Do not force or damage may occur to the potentiometer.

• Security Cover Installation - Remove the knob from the panel and insert the cover. Do not force or

damage may occur to the potentiometer. Small pliers may be required to remove the knobs.

Mounting

There are three ways to securely mount this TSD:

1. Velcro™ - Each unit includes industrial-grade Velcro™ with adhesive backing to adhere to any

flat surface.

2. Brackets - Each unit includes two mounting brackets to secure to a cabinet or wall.

3. Rack Mount Panel - The optional TSD-RMK rack mount panel supports up to four TSDs in a

1RU space.


Telephone: 800.876.3333 • Fax: 800.765.3435


TSD-PA20VG


Block Diagram

INPUT SIGNAL

LED

PEAK

LED

LEVEL

AMP 20W


OT

100V

70V

4 ohm

COM

DC24V IN

DC OUT

POWER LED

Specifications

Description

Chassis Color

Chassis Material

Power Output

Input

Type

Connection

Impedance

Line Input Level

Output

Output Taps

Type

Connection

Wire Size

1 x 20W Global Commercial Amplifier

Black

Aluminum

20W @ 4Ω, 10W @ 8Ω, 20W @ 25/70.7/100V Loads

Qty 1, Balanced Line

Removable 3 Position Captive Screw 3.5mm Spacing

10KΩ Balanced, 5KΩ Unbalanced

500mV (-6dBV) Balanced

4Ω, 25V, 70V, 100V

Speaker Output

Removable 5 Position Captive Screw 5mm Spacing

14 Gauge Max Wire Size

Controls

Level Control Qty 1, Removable Knob with Security Cover

Indicators

Input Signal

Peak

Green, 25mV On Threshold

Red, -3dB Before Clip

Power Blue



Telephone: 800.876.3333 • Fax: 800.765.3435

– 6 –



TSD-PA20VG


Electrical

Frequency Response

THD

Signal to Noise

40Hz - 20kHz (±3dB)

15% @ 1kHz

78dB

Mounting

Velcro™

Brackets

TSD-RMK

Cable Retainer

Industrial-Grade, Included

Qty 2, Included

Optional 1 RU Rack Mount Panel (Supports 4 TSD Units)

Qty 2, Included

Power Requirements Note: All Current and Watt data is based on AC power consumption using the TSD-PS24V2500mA Power Supply.

Load Taps 4Ω, 25V = 31Ω Load, 70V = 250Ω Load, 100V = 500Ω Load

Voltage 24VDC

Idle Current

Idle VA Watts

Average Current

Average VA Watts

Max Current

Max VA Watts

50mA

1.2W

160mA

3.8W

490mA

11.7W

Dimensions H 1.5" (39mm) x W 4" (101mm) x D 5.2" (132mm)

6oz, .165kg

Weight

Accessories

TSD 24VDC Power Supplies

TSD-RMK 1 RU Rack Panel

Safety and Certifications

External Power Supply cUL, CE, RoHS, TUV


Telephone: 800.876.3333 • Fax: 800.765.3435


TSD-PA20VG



Limited Warranty

All products manufactured by Atlas Sound are warranted to the original dealer/installer, industrial or commercial purchaser to be free from defects in material and workmanship and to be in compliance with our published specifications, if any. This warranty shall extend from the date of purchase for a period of three years on all Atlas Sound products, including SOUNDOLIER brand, and ATLAS

SOUND brand products except as follows: one year on electronics and control systems; one year on replacement parts; and one year on Musician Series stands and related accessories. Additionally, fuses and lamps carry no warranty. Atlas Sound will solely at its discretion, replace at no charge or repair free of charge defective parts or products when the product has been applied and used in accordance with our published operation and installation instructions. We will not be responsible for defects caused by improper storage, misuse (including failure to provide reasonable and necessary maintenance), accident, abnormal atmospheres, water immersion, lightning discharge, or malfunctions when products have been modified or operated in excess of rated power, altered, serviced or installed in other than a workman like manner. The original sales invoice should be retained as evidence of purchase under the terms of this warranty. All warranty returns must comply with our returns policy set forth below. When products returned to Atlas Sound do not qualify for repair or replacement under our warranty, repairs may be performed at prevailing costs for material and labor unless there is included with the returned product(s) a written request for an estimate of repair costs before any nonwarranty work is performed. In the event of replacement or upon completion of repairs, return shipment will be made with the transportation charges collect.

EXCEPT TO THE EXTENT THAT APPLICABLE LAW PREVENTS THE LIMITATION OF CONSEQUENTIAL

DAMAGES FOR PERSONAL INJURY, ATLAS SOUND SHALL NOT BE LIABLE IN TORT OR CONTRACT

FOR ANY DIRECT, CONSEQUENTIAL OR INCIDENTAL LOSS OR DAMAGE ARISING OUT OF THE

INSTALLATION, USE OR INABILITY TO USE THE PRODUCTS. THE ABOVE WARRANTY IS IN LIEU OF

ALL OTHER WARRANTIES INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR PURPOSE.

Atlas Sound does not assume, or does it authorize any other person to assume or extend on its behalf, any other warranty, obligation, or liability. This warranty gives you specific legal rights and you may have other rights which vary from state to state.

Service

Should your Atlas TSD require service, please contact the Atlas Sound warranty department at 1-877-689-8055, ext. 1274 to obtain an RA number.

Atlas Sound Tech Support can be reached at 1-800-876-3333.

Visit our website at www.AtlasSound.com to see other Atlas products

©2011 Atlas Sound L.P. All rights reserved. Atlas Sound is a trademark of Atlas Sound L.P.

All other trademarks are the property of their respective owners. ATS004054 RevB 12/11



Telephone: 800.876.3333 • Fax: 800.765.3435

– 8 –


Atlas TSD-PA20VG Owner's Manual

TSD-PA20VG

Mono 20W Power Amplifier

Description

Features

Audio Applications

Installation

Front Panel Description

Rear Panel Description

Knob and Security Cover

Mounting

Block Diagram

Specifications

Limited Warranty

Service

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