PulseAudio PA-SM21 User manual

vanco1.com | 800.626.6445
STEREO TO MONO AUDIO
CONVERTER
PART NUMBER PA-SM21
Converts a stereo line level audio signal to a balanced mono audio output through the 3-pin terminal
connecter

2
1. Do not install or place this unit
in a built-in cabinet, or other
confined space without adequate
ventilation.
2. To prevent risk of electrical shock
or fire hazard, due to overheating
do not obstruct unit’s ventilation
openings.
3. Do not install near any source of
heat, including other units that
may produce heat.
4. Do not place unit near flames.
5. Only clean unit with a dry cloth.
6. Unplug unit during lightning
storms or when not used for an
extended period of time.
7. Protect the power cord from being
walked on or pinched, particularly
at the plugs.
8. Use unit only with accessories
specified by the manufacturer.
9. Refer all servicing to qualified
personnel.
WARNING
THIS PRODUCT IS 100% INSPECTED AND TESTED IN THE
UNITED STATES TO VERIFY PERFORMANCE PARAMETERS.
Thank you for purchasing this product. For optimum
performance and safety, please read these instructions
carefully before connecting, operating or adjusting this
product. Please keep this manual for future reference.
DEAR CUSTOMER

3
The PA-SM21 Stereo to Mono Audio Converter can convert a stereo line level
audio signal to a balanced mono audio output through the 3-pin terminal
connecter. It can also adapt a balanced mono audio signal to an unbalanced
mono audio signal using the dual RCA outputs. Small, compact and mountable
metal chassis makes it a nice and easy solution when looking to convert your
audio signal.
Part # PA-SM21
• Converts a stereo line level signal to a balanced mono output
• RCA Input or Output
• Balanced Screw Terminal Input or Output
• Compact Design
• 40 Hz to 20 kHz Frequency Response
• Converts a balanced mono input to a mono RCA output
• Easy to Mount
• Dimensions: 3.2” W x 1.5” H x 0.9” D (82mm x 38mm x 22mm)
FEATURES
PACKAGE CONTENTS
• (1) PA-SM21 Stereo to Audio Converter
• (1) 3-Pin Screw Terminal (Phoenix Connector)
• (2) Mounting Screws
• (1) Product Manual
Stereo to Mono Audio Converter
Inputs/Outputs ............................................................Unbalanced Dual RCA; Balanced 3-Pin
Terminal (Phoenix Connector)
Frequency Response.................................................40Hz - 20 kHz
Unit Dimensions...........................................................3.2” W x 1.5” H x 0.9” D (82mm x 38mm x
22mm)
Unit Weight ...................................................................0.28 lbs (125g)
SPECIFICATIONS

4
1
2
1. Balanced 3-Pin Terminal (Phoenix) Connecter: This can be used as an input to
convert a balanced mono INPUT to mono RCA output, or to convert stereo line
level signal to a balanced mono output
2. Unbalanced dual-RCA jacks. These can be used as an input to convert a stereo line
level signal to a to a balanced mono output, or as an output to convert balanced
mono INPUT to dual MONO RCA outputs
PANEL DESCRIPTIONS

5
CONNECT AND OPERATE
1. With your source and amp/pre-amp powered o, connect your audio source to the
PA-SM21 as an input
- Use 3-conductor wire and the provided phoenix connector for a balanced
mono audio signal input
- Use dual RCA connectors for an unbalanced stereo audio signal input
2. Connect the PA-SM21 as an output to your amp/pre-amp
- Use the 3-conductor wire and the provided phoenix connector to output a
balanced mono audio signal
- Use single or dual RCA connector(s) to output unbalanced audio signal(s)
3. Turn on equipment and test
Audio Speaker
Source
Amplifier

6
SAFETY AND NOTICE
The PA-SM21 has been tested for conformance to safety regulations and requirements,
and has been certified for international use. However, like all electronic equipment, the
PA-SM21 should be used with care. Please read and follow the safety instructions to
protect yourself from possible injury and to minimize the risk of damage to the unit.
• Follow all instructions and warnings marked on this unit
• Do not attempt to service this unit yourself, except where explained in this manual
• Provide proper ventilation and air circulation and do not use near water
• Keep objects that might damage the device and assure that the placement of this
unit is on a stable surface
• Use only the power adapter and power cords and connection cables designed for
this unit
• Do not use liquid or aerosol cleaners to clean this unit
• Always unplug the power to the device before cleaning
TECHNICAL SUPPORT
In case of problems, please contact Vanco Technical Support by dialing 1-800-626-
6445. You can also email technical support issues to [e-mail]. When
calling, please have the Model Number, Serial Number (axed to the bottom of the unit)
and Invoice available for reference during the call. Please read this Instruction Manual
prior to calling or installing this unit, since it will familiarize you with the capabilities
of this product and its proper installation. All active electronic products are 100%
inspected and tested to insure highest product quality and trouble-free installation and
operation. The testing process utilizes the types of high-definition sources and displays
typically installed for entertainment and home theatre applications.For additional
information please visit www.vanco1.com.

7
LIABILITY STATEMENT
Every eort has been made to ensure that this product is free of defects. The
manufacturer of this product cannot be held liable for the use of this hardware or any
direct or indirect consequential damages arising from its use. It is the responsibility of
the user and installer of the hardware to check that it is suitable for their requirements
and that it is installed correctly. All rights are reserved. No parts of this manual may be
reproduced or transmitted by any form or means electronic or mechanical, including
photocopying, recording or by any information storage or retrieval system without the
written consent of the publisher. Manufacturer reserves the right to revise any of its
hardware and software following its policy to modify and/or improve its products where
necessary or desirable. This statement does not aect the legal rights of the user in any
way.
LIMITED WARRANTY
With the exceptions noted in the next paragraph, Vanco warrants to the original
purchaser that the equipment it manufactures or sells will be free from defects in
materials and workmanship for a period of two years from the date of purchase.
Should this product, in Vanco’s opinion, prove defective within this warranty period,
Vanco, at its option, will repair or replace this product without charge. Any defective
parts replaced become the property of Vanco. This warranty does not apply to those
products which have been damaged due to accident, unauthorized alterations, improper
repair, modifications, inadequate maintenance and care, or use in any manner for which
the product was not originally intended.
Items integrated into Vanco products that are made by other manufacturers, notably
computer hard drives and liquid crystal display panels, are limited to the term of the
warranty oered by the respective manufacturers. Such specific warranties are available
upon request to Vanco. A surge protector, power conditioner unit, or an uninterruptible
power supply must be installed in the electrical circuit to protect against power surges.
If repairs are needed during the warranty period the purchaser will be required to
provide a sales receipt/sales invoice or other acceptable proof of purchase to the seller
of this equipment. The seller will then contact Vanco regarding warranty repair or
replacement.

506 Kingsland Drive Batavia, Illinois 60510
call: 800.626.6445 | fax: [phone]
visit: www.vanco1.com
Vanco®International
A brand from Learn more at vanco1.com