Atlas Sound TSD-PA20VG Mono 20W Power Amplifier Owner’s Manual
- June 13, 2024
- ATLAS Sound
Table of Contents
Atlas Sound TSD-PA20VG Mono 20W Power Amplifier
Product Information
The TSD-PA20VG 1x20W Global Commercial Amplifier is a mono 20W power amplifier designed for commercial audio applications. It features an input level control, power LED, signal LED, peak LED, bracket retainer points, balanced line input, speaker outputs, and cable management retainer points. The amplifier is equipped with a potentiometer on the front panel for gain control and includes a removable knob for easy installation of a tamper-resistant cover. The rear panel has removable input/output connections and includes phoenix style connectors for balanced line input and speaker terminals for both low impedance and high impedance loads.
Product Usage Instructions
Front Panel Description
- 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.
- Power LED – Illuminates Blue when 24VDC power is present.
- Signal LED – Illuminates Green when the input signal strength reaches 25mV to verify a signal path.
- 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.
- 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.
Rear Panel Description
TSD Input/Output connections are removable for easy system wiring. The connectors have a 3.5mm pitch between pins.
- 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.
- 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.
- 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.
- 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.
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
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:
- Velcro™ – Each unit includes industrial-grade Velcro™ with adhesive backing to adhere to any flat surface.
- Brackets – Each unit includes two mounting brackets to secure to a cabinet or wall.
- Rack Mount Panel – The optional TSD-RMK rack mount panel supports up to four TSDs in a 1RU space.
Block Diagram
Specifications
- Description: 1 x 20W Global Commercial Amplifier
- Chassis Color: Black
- Chassis Material: Aluminum
- Power Output: 20W @ 4W, 10W @ 8W, 20W @ 25/70.7/100V Loads
Input
- Type: Qty 1, Balanced Line
- Connection: Removable 3 Position Captive Screw 3.5mm Spacing
- Impedance: 10KW Balanced, 5KW Unbalanced
- Line Input Level: 500mV (-6dBV) Balanced
Output
- Output Taps: 4W, 25V, 70V, 100V
- Type: Speaker Output
- Connection: Removable 5 Position Captive Screw 5mm Spacing
- Wire Size: 14 Gauge Max Wire Size
Controls
- Level Control: Qty 1, Removable Knob with Security Cover
Indicators
- Input Signal: Green, 25mV On Threshold
- Peak: Red, -3dB Before Clip
- Power: Blue
Electrical
- Frequency Response: 40Hz – 20kHz (±3dB)
- THD: 15% @ 1kHz
- Signal to Noise: 78dB
Mounting
- Velcro™: Industrial-Grade, Included
- Brackets: Qty 2, Included
- TSD-RMK: Optional 1 RU Rack Mount Panel (Supports 4 TSD Units)
- Cable Retainer: 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: 50mA
- Idle VA Watts: 1.2W
- Average Current: 160mA
- Average VA Watts: 3.8W
- Max Current: 490mA
- Max VA Watts: 11.7W
- Dimensions: H 1.5″ (39mm) x W 4″ (101mm) x D 5.2″ (132mm)
- Weight: 6oz, .165kg
Accessories
- TSD 24VDC Power Supplies
- TSD-RMK 1 RU Rack Panel
Safety and Certifications
- External Power Supply: cUL, CE, RoHS, TUV
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
1601 Jack McKay Blvd.
Ennis, Texas 75119 U.S.A.
Telephone: 800.876.3333
Fax: 800.765.3435
AtlasSound.com