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Installation and Operation Manual

Due to the dynamic nature of product design, the information contained in this 
document is subject to change without notice.  Broadcast Tools, Inc., assumes no
responsibility for errors and/or omissions contained in this document.  Revisions 
of this information or new editions may be issued to incorporate such changes.

Broadcast Tools® is a registered trademark of Broadcast Tools, Inc. 

Copyright, 1989 - 2007 by Broadcast Tools, Inc.  All rights reserved.

No part of this document may be reproduced or distributed without permission.

Visit www.broadcasttools.com for important product update information.

Manual Update: 09/24/2007

HPA-4 Plus 

4 Channel Headphone Amplifier with Talkback/Cue

INC

®

Summary of Contents for HPA-4 Plus

Page 1: ...nt Revisions of this information or new editions may be issued to incorporate such changes Broadcast Tools is a registered trademark of Broadcast Tools Inc Copyright 1989 2007 by Broadcast Tools Inc A...

Page 2: ...e problems If you experience these problems please research your hardware software instruction manuals or contact the man ufacturers technical support department WHO TO CONTACT FOR HELP If you have an...

Page 3: ...panel trimmer Additional features include power talkback cue active and program audio activity front panel LED indicators surge protected internal bi polar 15 vdc power supply affording superior headr...

Page 4: ...ut levels should be in the range of 15 to 4dBu Unbalanced inputs should have the and CG terminals connected togeth er Each headphone amp may be configured to accept talkback cue audio in the left ear...

Page 5: ...ack cue audio into the HPA 4 Plus Plug a set of headphones into the channel that talkback cue has been enabled Insure that the channels level control has been set to the normal program listening level...

Page 6: ...s Talkback Cue Control Contact closure to ground or DC voltage between 5 24 volts Connectors 1 4 T R S jacks and plug in euroblock connectors Power 16 Vac 600ma 120 Vac 50 60 hz transformer supplied T...

Page 7: ...OTHER WARRANTIES OR REMEDIES TO THE MAXIMUM EXTENT PERMITTED BYAPPLICABLE LAW BROADCAST TOOLSAND ITS SUPPLIERS DISCLAIMALL OTHER WARRANTIES EITHER EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO IMPLI...

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