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1. INTRODUCTION

In purchasing the new SM DI4, you have acquired a multi-channel DI Box/line mixer of high class 
that meets all the demands and requirements of studio and live work. Due to its extensive 
functions the SM DI4 is an extremely efficient and universal piece of equipment. The unit features 
high quality multi-channel unbalanced to balanced line conversion, in addition to providing an 
extremely useful built in line mixer all in a single unit rack-mount chassis. The SM DI4 finds 
widespread application throughout the world, in home/pro studios, sound reinforcement systems 
and in many other audio fields.

The SM DI4 features 4 independent DI Boxes!! That's right! 4 independent DI (direct injection) 
unbalanced to balanced line converters. This is fantastic news for many uses in the studio or on 
the road in live PA applications. 

In addition, the SM DI4 also functions as multi-channel stereo line mixer. This is an ingenious 
feature which will many musicians will find incredibly useful in live situations. Just think! You can 
plug all your keyboards, samplers & modules into just one rack unit on stage and supply 
independent XLR balanced outputs to the stage box for the front of house engineer.. AND set 
your own independent mix for stage monitoring..cool! In Addition you have your own Headphone
output on the unit.

2. THE DESIGN CONCEPT

2.1 High quality components and design

The philosophy behind SM ProAudio products guarantees a no-compromise circuit design and 
employs the best choice of components. 

2.2 Inputs and outputs

All inputs and outputs are secured firmly to the exterior chassis housing. This ensures robust 
quality and confidence in performance under all conditions.

Содержание SM DI4 Value

Страница 1: ...SM Pro Audio Operating Manual SM DI4Value ...

Страница 2: ...ke sure your appliance is set to the correct voltage for the country in which it will be used Grounding and Polarization Precautions should be taken so that the grounding or polarization means of an appliance is not defeated Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on pinched dam aged worn or rubbed by any other device or obstacle Cleaning ...

Страница 3: ...components and rugged construction FOREWORD Dear Customer Thank you very much for expressing your confidence in SM ProAudio products by purchasing this unit The SM DI4 has been designed to be used as a standard tool for home pro studios P A rental companies etc With much experience in the audio industry over a long period of time and along with valuable suggestions from our customers our engineers...

Страница 4: ... 4 FRONT PANEL CONTROLS 4 1 Independent 4 x rotary volume controls for each channel to line mixer stereo output 4 2 Independent 4 x rotary pan controls for each channel to line mixer stereo output 4 3 Independent 4 x 20 dB PAD switch 4 4 Independent 4 x earth Ground lift switch 5 APPLICATION 5 1 Using the SM DI4 as a DI Box 5 2 Using the SM DI4 as a line mixer 6 SPECIFICATIONS 7 WARRANTY ...

Страница 5: ...ers This is fantastic news for many uses in the studio or on the road in live PA applications In addition the SM DI4 also functions as multi channel stereo line mixer This is an ingenious feature which will many musicians will find incredibly useful in live situations Just think You can plug all your keyboards samplers modules into just one rack unit on stage and supply independent XLR balanced ou...

Страница 6: ... 3 1 Rack Mounting The SM ProAudio SM DI4 fits into HALF a standard 19 rack unit of space 1 3 4 Be sure that there is enough air space around the unit for cooling As to avoid overheating please do not place the SM DI4 on high temperature devices such as power amplifiers 3 2 Mains voltage The SM DI4 comes with a 16V AC power supply adaptor Before you connect your SM DI4 to the mains please make sur...

Страница 7: ... to set the level of each channel signal level sent to the stereo master output section 4 2 Independent 4 x rotary pan controls for each channel to line mixer stereo output Use these variable controls to set the pan of each channel signal level sent to the stereo master output section 4 3 Independent 4 x 20 dB PAD switch Use these switches to PAD each input channel signal level by 20dB Use this on...

Страница 8: ... For Extra grounding in a studio we have included a Ground Screw on the back of the unit 5 2 Using the SM DI4 as a line mixer You can mix volume pan of all input signals to a single stereo pair of RCA connections on the rear of the SM DI4 This enables use of the unit as a fully functional line mixer This can be very handy for many applications both live and in the studio Just connect the RCA stere...

Страница 9: ...UNCTION CONTROLS Volume per channel variable Pan per channel variable POWER SUPPLY Mains voltages USA Canada 120 V AC 60 Hz U K Australia 240 V AC 50 Hz Europe 230 V AC 50 Hz General export model 100 120 V AC 200 240 V AC 50 60 Hz Power consumption 5 5VA Fuse 100 120 V AC 630 mA slow blow 200 220 V AC 315 mA slow blow Mains connection Through 16V AC Adaptor PHYSICAL Dimension 1 3 4 44 5 mm 8 230 6...

Страница 10: ...appropriate use SM ProAudio shall at its sole discretion either repair or replace the product 2 If the warranty claim proves to be justified the product will be returned freight prepaid by SM ProAudio within Australia Outside of Australia the product will be returned at the buyer s expense 3 Warranty claims other than those indicated above are expressly excluded 3 RETURN AUTHORIZATION NUMBER 1 To ...

Страница 11: ...om this warranty in particular if caused by inappropriate use Likewise the warranty does not cover defects of expendable parts caused by normal wear of the product Expendable parts are typically pots potentiometers switches and similar components 4 Damages defects caused by the following conditions are not covered by this warranty Misuse neglect or failure to operate the unit in compliance with th...

Страница 12: ...alue of the product 7 OTHER WARRANTY RIGHTS This warranty does not exclude or limit the buyer s statutory rights provided by national law in particular any such rights against the seller that arise from a legally effective purchase contract The information contained in this manual is subject to change without notice No part of this manual may be reproduced or transmitted in any form or by any mean...

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