Redbox Handbook 5
Redbox User Handbook No 5
Stock Code: 30-343
Artwork: AW10835
Revision 3.02 March 2020
©Sonifex Ltd, 2020
All Rights Reserved
Sonifex Ltd, 61, Station Road, Irthlingborough,
Northants, NN9 5QE, England.
Tel: +44 (0)1933 650 700
Fax: +44 (0)1933 650 726
Email: sales@sonifex.co.uk
Website: https://www.sonifex.co.uk
Information in this document is subject to change without notice and does not represent a
commitment on the part of the vendor. Sonifex Ltd shall not be liable for any loss or damage
whatsoever arising from the use of information or any error contained in this manual.
No part of this manual may be reproduced or transmitted in any form or by any means, electronic
or mechanical, including photocopying, recording, information storage and retrieval systems, for any
purpose other than the purchaser’s personal use, without the express written permission of Sonifex
Ltd. Unless otherwise noted, all names of companies, products and persons contained herein are
part of a completely fictitious adaptation and are designed solely to document the use of Sonifex
product.
Made in the UK by
Contents
Product Warranty - 2 Year Extended ii
Sonifex Warranty & Liability Terms & Conditions ii
1. Definitions ii
2. Warranty ii
Unpacking Your Product iii
Repairs & Returns iv
Conformity iv
Safety & Installation of Mains Operated Equipment iv
Voltage Setting Checks iv
Fuse Rating iv
Power Cable & Connection iv
WEEE Directive v
Atmosphere/Environment v
Fitting Redboxes v
1 RB-HD1 Stereo Headphone Amplifier With VCA
Volume Control 1
Introduction 1
System Block Diagrams 1
Front Panel Connections and Controls 2
Rear Panel Connections and Operation 2
Technical Specifications RB-HD1 4
2 RB-HD2 Dual Headphone Amplifier 5
Introduction 5
System Block Diagrams 5
Front Panel Connections and Controls 6
Rear Panel Connections and Operation 6
Technical Specifications RB-HD2 7
3 RB-HD6 6 Way Stereo Headphone Distribution Amplifier 8
Introduction 8
System Block Diagram 9
Rear Panel Connections and Operation 10
Front Panel Connections and Controls 11
Technical Specifications RB-HD6 12
4 RB-DHD6 Digital 6 Way Headphone Distribution Amplifier 13
Introduction 13
System Block Diagram 13
Rear Panel Connections and Operation 14
Front Panel Indicators & Controls 14
Technical Specifications RB-DHD6 16
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Sonifex website at www.sonifex.co.uk
